diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index bb4a2897feae..9713fc746561 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -728,7 +728,7 @@ static int check_insn_config_length(struct comedi_insn *insn, unsigned int *data
 	/* by default we allow the insn since we don't have checks for
 	 * all possible cases yet */
 	default:
-		rt_printk("comedi: no check for data length of config insn id "
+		printk("comedi: no check for data length of config insn id "
 			  "%i is implemented.\n"
 			  " Add a check to %s in %s.\n"
 			  " Assuming n=%i is correct.\n", data[0], __func__,
@@ -1219,12 +1219,12 @@ static int do_lock_ioctl(struct comedi_device *dev, unsigned int arg, void *file
 		return -EINVAL;
 	s = dev->subdevices + arg;
 
-	comedi_spin_lock_irqsave(&s->spin_lock, flags);
+	spin_lock_irqsave(&s->spin_lock, flags);
 	if (s->busy || s->lock)
 		ret = -EBUSY;
 	else
 		s->lock = file;
-	comedi_spin_unlock_irqrestore(&s->spin_lock, flags);
+	spin_unlock_irqrestore(&s->spin_lock, flags);
 
 	if (ret < 0)
 		return ret;
@@ -1984,8 +1984,7 @@ module_exit(comedi_cleanup);
 
 void comedi_error(const struct comedi_device *dev, const char *s)
 {
-	rt_printk("comedi%d: %s: %s\n", dev->minor, dev->driver->driver_name,
-		  s);
+	printk("comedi%d: %s: %s\n", dev->minor, dev->driver->driver_name, s);
 }
 
 void comedi_event(struct comedi_device *dev, struct comedi_subdevice *s)
@@ -2054,10 +2053,10 @@ void comedi_set_subdevice_runflags(struct comedi_subdevice *s, unsigned mask,
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&s->spin_lock, flags);
+	spin_lock_irqsave(&s->spin_lock, flags);
 	s->runflags &= ~mask;
 	s->runflags |= (bits & mask);
-	comedi_spin_unlock_irqrestore(&s->spin_lock, flags);
+	spin_unlock_irqrestore(&s->spin_lock, flags);
 }
 
 unsigned comedi_get_subdevice_runflags(struct comedi_subdevice *s)
@@ -2065,9 +2064,9 @@ unsigned comedi_get_subdevice_runflags(struct comedi_subdevice *s)
 	unsigned long flags;
 	unsigned runflags;
 
-	comedi_spin_lock_irqsave(&s->spin_lock, flags);
+	spin_lock_irqsave(&s->spin_lock, flags);
 	runflags = s->runflags;
-	comedi_spin_unlock_irqrestore(&s->spin_lock, flags);
+	spin_unlock_irqrestore(&s->spin_lock, flags);
 	return runflags;
 }
 
@@ -2125,14 +2124,14 @@ int comedi_alloc_board_minor(struct device *hardware_device)
 		return -ENOMEM;
 	}
 	comedi_device_init(info->device);
-	comedi_spin_lock_irqsave(&comedi_file_info_table_lock, flags);
+	spin_lock_irqsave(&comedi_file_info_table_lock, flags);
 	for (i = 0; i < COMEDI_NUM_BOARD_MINORS; ++i) {
 		if (comedi_file_info_table[i] == NULL) {
 			comedi_file_info_table[i] = info;
 			break;
 		}
 	}
-	comedi_spin_unlock_irqrestore(&comedi_file_info_table_lock, flags);
+	spin_unlock_irqrestore(&comedi_file_info_table_lock, flags);
 	if (i == COMEDI_NUM_BOARD_MINORS) {
 		comedi_device_cleanup(info->device);
 		kfree(info->device);
@@ -2184,10 +2183,10 @@ void comedi_free_board_minor(unsigned minor)
 	struct comedi_device_file_info *info;
 
 	BUG_ON(minor >= COMEDI_NUM_BOARD_MINORS);
-	comedi_spin_lock_irqsave(&comedi_file_info_table_lock, flags);
+	spin_lock_irqsave(&comedi_file_info_table_lock, flags);
 	info = comedi_file_info_table[minor];
 	comedi_file_info_table[minor] = NULL;
-	comedi_spin_unlock_irqrestore(&comedi_file_info_table_lock, flags);
+	spin_unlock_irqrestore(&comedi_file_info_table_lock, flags);
 
 	if (info) {
 		struct comedi_device *dev = info->device;
@@ -2218,14 +2217,14 @@ int comedi_alloc_subdevice_minor(struct comedi_device *dev,
 	info->device = dev;
 	info->read_subdevice = s;
 	info->write_subdevice = s;
-	comedi_spin_lock_irqsave(&comedi_file_info_table_lock, flags);
+	spin_lock_irqsave(&comedi_file_info_table_lock, flags);
 	for (i = COMEDI_FIRST_SUBDEVICE_MINOR; i < COMEDI_NUM_MINORS; ++i) {
 		if (comedi_file_info_table[i] == NULL) {
 			comedi_file_info_table[i] = info;
 			break;
 		}
 	}
-	comedi_spin_unlock_irqrestore(&comedi_file_info_table_lock, flags);
+	spin_unlock_irqrestore(&comedi_file_info_table_lock, flags);
 	if (i == COMEDI_NUM_MINORS) {
 		kfree(info);
 		printk(KERN_ERR "comedi: error: ran out of minor numbers for board device files.\n");
@@ -2283,10 +2282,10 @@ void comedi_free_subdevice_minor(struct comedi_subdevice *s)
 	BUG_ON(s->minor >= COMEDI_NUM_MINORS);
 	BUG_ON(s->minor < COMEDI_FIRST_SUBDEVICE_MINOR);
 
-	comedi_spin_lock_irqsave(&comedi_file_info_table_lock, flags);
+	spin_lock_irqsave(&comedi_file_info_table_lock, flags);
 	info = comedi_file_info_table[s->minor];
 	comedi_file_info_table[s->minor] = NULL;
-	comedi_spin_unlock_irqrestore(&comedi_file_info_table_lock, flags);
+	spin_unlock_irqrestore(&comedi_file_info_table_lock, flags);
 
 	if (s->class_dev) {
 		device_destroy(comedi_class, MKDEV(COMEDI_MAJOR, s->minor));
@@ -2301,9 +2300,9 @@ struct comedi_device_file_info *comedi_get_device_file_info(unsigned minor)
 	struct comedi_device_file_info *info;
 
 	BUG_ON(minor >= COMEDI_NUM_MINORS);
-	comedi_spin_lock_irqsave(&comedi_file_info_table_lock, flags);
+	spin_lock_irqsave(&comedi_file_info_table_lock, flags);
 	info = comedi_file_info_table[minor];
-	comedi_spin_unlock_irqrestore(&comedi_file_info_table_lock, flags);
+	spin_unlock_irqrestore(&comedi_file_info_table_lock, flags);
 	return info;
 }
 
diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c
index e5185ac3604c..42a02571ff1b 100644
--- a/drivers/staging/comedi/drivers.c
+++ b/drivers/staging/comedi/drivers.c
@@ -554,7 +554,7 @@ unsigned int comedi_buf_munge(struct comedi_async *async, unsigned int num_bytes
 
 		block_size = num_bytes - count;
 		if (block_size < 0) {
-			rt_printk("%s: %s: bug! block_size is negative\n",
+			printk("%s: %s: bug! block_size is negative\n",
 				__FILE__, __func__);
 			break;
 		}
@@ -633,8 +633,7 @@ unsigned comedi_buf_write_free(struct comedi_async *async, unsigned int nbytes)
 {
 	if ((int)(async->buf_write_count + nbytes -
 			async->buf_write_alloc_count) > 0) {
-		rt_printk
-			("comedi: attempted to write-free more bytes than have been write-allocated.\n");
+		printk("comedi: attempted to write-free more bytes than have been write-allocated.\n");
 		nbytes = async->buf_write_alloc_count - async->buf_write_count;
 	}
 	async->buf_write_count += nbytes;
@@ -667,8 +666,7 @@ unsigned comedi_buf_read_free(struct comedi_async *async, unsigned int nbytes)
 	smp_mb();
 	if ((int)(async->buf_read_count + nbytes -
 			async->buf_read_alloc_count) > 0) {
-		rt_printk
-			("comedi: attempted to read-free more bytes than have been read-allocated.\n");
+		printk("comedi: attempted to read-free more bytes than have been read-allocated.\n");
 		nbytes = async->buf_read_alloc_count - async->buf_read_count;
 	}
 	async->buf_read_count += nbytes;
diff --git a/drivers/staging/comedi/drivers/addi-data/addi_amcc_s5933.h b/drivers/staging/comedi/drivers/addi-data/addi_amcc_s5933.h
index 4ad8253dc08f..d288289143ea 100644
--- a/drivers/staging/comedi/drivers/addi-data/addi_amcc_s5933.h
+++ b/drivers/staging/comedi/drivers/addi-data/addi_amcc_s5933.h
@@ -343,7 +343,7 @@ int i_find_free_pci_card_by_position(unsigned short vendor_id,
 				*card = amcc;
 				return 0;	/* ok, card is found */
 			} else {
-				rt_printk(" - \nCard on requested position is used b:s %d:%d!\n",
+				printk(" - \nCard on requested position is used b:s %d:%d!\n",
 					  pci_bus, pci_slot);
 				return 2;	/* card exist but is used */
 			}
@@ -447,7 +447,7 @@ struct pcilst_struct *ptr_select_and_alloc_pci_card(unsigned short vendor_id,
 		/* use autodetection */
 		card = ptr_find_free_pci_card_by_device(vendor_id, device_id);
 		if (card == NULL) {
-			rt_printk(" - Unused card not found in system!\n");
+			printk(" - Unused card not found in system!\n");
 			return NULL;
 		}
 	} else {
@@ -455,18 +455,18 @@ struct pcilst_struct *ptr_select_and_alloc_pci_card(unsigned short vendor_id,
 							 pci_bus, pci_slot,
 							 &card)) {
 		case 1:
-			rt_printk(" - Card not found on requested position b:s %d:%d!\n",
+			printk(" - Card not found on requested position b:s %d:%d!\n",
 				  pci_bus, pci_slot);
 			return NULL;
 		case 2:
-			rt_printk(" - Card on requested position is used b:s %d:%d!\n",
+			printk(" - Card on requested position is used b:s %d:%d!\n",
 				  pci_bus, pci_slot);
 			return NULL;
 		}
 	}
 
 	if (pci_card_alloc(card, i_Master) != 0) {
-		rt_printk(" - Can't allocate card!\n");
+		printk(" - Can't allocate card!\n");
 		return NULL;
 
 	}
diff --git a/drivers/staging/comedi/drivers/addi-data/addi_common.c b/drivers/staging/comedi/drivers/addi-data/addi_common.c
index 58d7bf1654c8..df6908f68177 100644
--- a/drivers/staging/comedi/drivers/addi-data/addi_common.c
+++ b/drivers/staging/comedi/drivers/addi-data/addi_common.c
@@ -2583,7 +2583,7 @@ static int i_ADDI_Attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		v_pci_card_list_init(this_board->i_VendorId, 1);	/* 1 for displaying the list.. */
 		pci_list_builded = 1;
 	}
-	/* rt_printk("comedi%d: addi_common: board=%s",dev->minor,this_board->pc_DriverName); */
+	/* printk("comedi%d: addi_common: board=%s",dev->minor,this_board->pc_DriverName); */
 
 	if ((this_board->i_Dma) && (it->options[2] == 0)) {
 		i_Dma = 1;
@@ -2648,16 +2648,16 @@ static int i_ADDI_Attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	/* ## */
 
 	if (irq > 0) {
-		if (comedi_request_irq(irq, v_ADDI_Interrupt, IRQF_SHARED,
+		if (request_irq(irq, v_ADDI_Interrupt, IRQF_SHARED,
 				c_Identifier, dev) < 0) {
 			printk(", unable to allocate IRQ %u, DISABLING IT",
 				irq);
 			irq = 0;	/* Can't use IRQ */
 		} else {
-			rt_printk("\nirq=%u", irq);
+			printk("\nirq=%u", irq);
 		}
 	} else {
-		rt_printk(", IRQ disabled");
+		printk(", IRQ disabled");
 	}
 
 	printk("\nOption %d %d %d\n", it->options[0], it->options[1],
@@ -2719,7 +2719,7 @@ static int i_ADDI_Attach(struct comedi_device *dev, struct comedi_devconfig *it)
 				}
 			}
 			if (!devpriv->ul_DmaBufferVirtual[0]) {
-				rt_printk
+				printk
 					(", Can't allocate DMA buffer, DMA disabled!");
 				devpriv->us_UseDma = ADDI_DISABLE;
 			}
@@ -2730,7 +2730,7 @@ static int i_ADDI_Attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		}
 
 		if ((devpriv->us_UseDma == ADDI_ENABLE)) {
-			rt_printk("\nDMA ENABLED\n");
+			printk("\nDMA ENABLED\n");
 		} else {
 			printk("\nDMA DISABLED\n");
 		}
@@ -2937,7 +2937,7 @@ static int i_ADDI_Detach(struct comedi_device *dev)
 		}
 
 		if (dev->irq) {
-			comedi_free_irq(dev->irq, dev);
+			free_irq(dev->irq, dev);
 		}
 
 		if ((devpriv->ps_BoardInfo->pc_EepromChip == NULL)
diff --git a/drivers/staging/comedi/drivers/addi-data/amcc_s5933_58.h b/drivers/staging/comedi/drivers/addi-data/amcc_s5933_58.h
index ba89ff93a4e1..b76f877f250a 100644
--- a/drivers/staging/comedi/drivers/addi-data/amcc_s5933_58.h
+++ b/drivers/staging/comedi/drivers/addi-data/amcc_s5933_58.h
@@ -335,7 +335,7 @@ int i_find_free_pci_card_by_position(unsigned short vendor_id,
 				*card = amcc;
 				return 0;	/*  ok, card is found */
 			} else {
-				rt_printk
+				printk
 				    (" - \nCard on requested position is used b:s %d:%d!\n",
 				     pci_bus, pci_slot);
 				return 2;	/*  card exist but is used */
@@ -425,7 +425,7 @@ struct pcilst_struct *ptr_select_and_alloc_pci_card(unsigned short vendor_id,
 	if ((pci_bus < 1) & (pci_slot < 1)) {	/*  use autodetection */
 		card = ptr_find_free_pci_card_by_device(vendor_id, device_id);
 		if (card == NULL) {
-			rt_printk(" - Unused card not found in system!\n");
+			printk(" - Unused card not found in system!\n");
 			return NULL;
 		}
 	} else {
@@ -433,12 +433,12 @@ struct pcilst_struct *ptr_select_and_alloc_pci_card(unsigned short vendor_id,
 							 pci_bus, pci_slot,
 							 &card)) {
 		case 1:
-			rt_printk
+			printk
 			    (" - Card not found on requested position b:s %d:%d!\n",
 			     pci_bus, pci_slot);
 			return NULL;
 		case 2:
-			rt_printk
+			printk
 			    (" - Card on requested position is used b:s %d:%d!\n",
 			     pci_bus, pci_slot);
 			return NULL;
@@ -446,7 +446,7 @@ struct pcilst_struct *ptr_select_and_alloc_pci_card(unsigned short vendor_id,
 	}
 
 	if (i_pci_card_alloc(card) != 0) {
-		rt_printk(" - Can't allocate card!\n");
+		printk(" - Can't allocate card!\n");
 		return NULL;
 	}
 
diff --git a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c
index 69d5c3a92f08..169cee41b871 100644
--- a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c
+++ b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c
@@ -2637,7 +2637,7 @@ int i_APCI3120_InsnWriteAnalogOutput(struct comedi_device *dev,
 	}
 
 /*
- * out put n values at the given channel. rt_printk("\nwaiting for
+ * out put n values at the given channel. printk("\nwaiting for
  * DA_READY BIT");
  */
 	do			/* Waiting of DA_READY BIT */
diff --git a/drivers/staging/comedi/drivers/adl_pci9111.c b/drivers/staging/comedi/drivers/adl_pci9111.c
index 288ad8151dd1..0ac722e6f37a 100644
--- a/drivers/staging/comedi/drivers/adl_pci9111.c
+++ b/drivers/staging/comedi/drivers/adl_pci9111.c
@@ -420,7 +420,7 @@ static void pci9111_timer_set(struct comedi_device *dev)
 		PCI9111_8254_READ_LOAD_LSB_MSB |
 		PCI9111_8254_MODE_2 | PCI9111_8254_BINARY_COUNTER);
 
-	comedi_udelay(1);
+	udelay(1);
 
 	pci9111_8254_counter_2_set(dev_private->timer_divisor_2);
 	pci9111_8254_counter_1_set(dev_private->timer_divisor_1);
@@ -901,7 +901,7 @@ static irqreturn_t pci9111_interrupt(int irq, void *p_device)
 
 	async = subdevice->async;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+	spin_lock_irqsave(&dev->spinlock, irq_flags);
 
 	/*  Check if we are source of interrupt */
 	intcsr = inb(dev_private->lcr_io_base +
@@ -919,7 +919,7 @@ static irqreturn_t pci9111_interrupt(int irq, void *p_device)
 						PLX9050_LINTI2_STATUS))))) {
 		/*  Not the source of the interrupt. */
 		/*  (N.B. not using PLX9050_SOFTWARE_INTERRUPT) */
-		comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+		spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 		return IRQ_NONE;
 	}
 
@@ -928,7 +928,7 @@ static irqreturn_t pci9111_interrupt(int irq, void *p_device)
 		/*  Interrupt comes from fifo_half-full signal */
 
 		if (pci9111_is_fifo_full()) {
-			comedi_spin_unlock_irqrestore(&dev->spinlock,
+			spin_unlock_irqrestore(&dev->spinlock,
 				irq_flags);
 			comedi_error(dev, PCI9111_DRIVER_NAME " fifo overflow");
 			pci9111_interrupt_clear();
@@ -1028,7 +1028,7 @@ static irqreturn_t pci9111_interrupt(int irq, void *p_device)
 
 	pci9111_interrupt_clear();
 
-	comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 
 	comedi_event(dev, subdevice);
 
@@ -1298,8 +1298,7 @@ static int pci9111_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	dev->irq = 0;
 	if (pci_device->irq > 0) {
-		if (comedi_request_irq(pci_device->irq,
-				pci9111_interrupt,
+		if (request_irq(pci_device->irq, pci9111_interrupt,
 				IRQF_SHARED, PCI9111_DRIVER_NAME, dev) != 0) {
 			printk("comedi%d: unable to allocate irq  %u\n",
 				dev->minor, pci_device->irq);
@@ -1379,7 +1378,7 @@ static int pci9111_detach(struct comedi_device *dev)
 	/*  Release previously allocated irq */
 
 	if (dev->irq != 0) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 
 	if (dev_private != 0 && dev_private->pci_device != 0) {
diff --git a/drivers/staging/comedi/drivers/adl_pci9118.c b/drivers/staging/comedi/drivers/adl_pci9118.c
index 59b6498ded60..65f522be9124 100644
--- a/drivers/staging/comedi/drivers/adl_pci9118.c
+++ b/drivers/staging/comedi/drivers/adl_pci9118.c
@@ -80,7 +80,7 @@ Configuration options:
 
 #undef DPRINTK
 #ifdef PCI9118_EXTDEBUG
-#define DPRINTK(fmt, args...) rt_printk(fmt, ## args)
+#define DPRINTK(fmt, args...) printk(fmt, ## args)
 #else
 #define DPRINTK(fmt, args...)
 #endif
@@ -345,12 +345,12 @@ static int pci9118_insn_read_ai(struct comedi_device *dev, struct comedi_subdevi
 
 	for (n = 0; n < insn->n; n++) {
 		outw(0, dev->iobase + PCI9118_SOFTTRG);	/* start conversion */
-		comedi_udelay(2);
+		udelay(2);
 		timeout = 100;
 		while (timeout--) {
 			if (inl(dev->iobase + PCI9118_ADSTAT) & AdStatus_ADrdy)
 				goto conv_finish;
-			comedi_udelay(1);
+			udelay(1);
 		}
 
 		comedi_error(dev, "A/D insn timeout");
@@ -569,7 +569,7 @@ static void interrupt_pci9118_ai_onesample(struct comedi_device *dev,
 #ifdef PCI9118_PARANOIDCHECK
 	if (devpriv->ai16bits == 0) {
 		if ((sampl & 0x000f) != devpriv->chanlist[s->async->cur_chan]) {	/*  data dropout! */
-			rt_printk
+			printk
 				("comedi: A/D  SAMPL - data dropout: received channel %d, expected %d!\n",
 				sampl & 0x000f,
 				devpriv->chanlist[s->async->cur_chan]);
@@ -950,11 +950,11 @@ static int pci9118_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		tmp = cmd->scan_begin_arg;
-/* rt_printk("S1 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
+/* printk("S1 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
 		i8253_cascade_ns_to_timer(devpriv->i8254_osc_base, &divisor1,
 			&divisor2, &cmd->scan_begin_arg,
 			cmd->flags & TRIG_ROUND_MASK);
-/* rt_printk("S2 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
+/* printk("S2 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
 		if (cmd->scan_begin_arg < this_board->ai_ns_min)
 			cmd->scan_begin_arg = this_board->ai_ns_min;
 		if (tmp != cmd->scan_begin_arg)
@@ -966,7 +966,7 @@ static int pci9118_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice
 		i8253_cascade_ns_to_timer(devpriv->i8254_osc_base, &divisor1,
 			&divisor2, &cmd->convert_arg,
 			cmd->flags & TRIG_ROUND_MASK);
-/* rt_printk("s1 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
+/* printk("s1 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
 		if (cmd->convert_arg < this_board->ai_ns_min)
 			cmd->convert_arg = this_board->ai_ns_min;
 		if (tmp != cmd->convert_arg)
@@ -980,7 +980,7 @@ static int pci9118_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice
 					cmd->scan_begin_arg =
 						this_board->ai_ns_min *
 						(cmd->scan_end_arg + 2);
-/* rt_printk("s2 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
+/* printk("s2 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
 					err++;
 				}
 			} else {
@@ -989,7 +989,7 @@ static int pci9118_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice
 					cmd->scan_begin_arg =
 						cmd->convert_arg *
 						cmd->chanlist_len;
-/* rt_printk("s3 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
+/* printk("s3 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
 					err++;
 				}
 			}
@@ -1033,7 +1033,7 @@ static int Compute_and_setup_dma(struct comedi_device *dev)
 		if (dmalen0 < (devpriv->ai_n_realscanlen << 1)) {
 			/*  uff, too short DMA buffer, disable EOS support! */
 			devpriv->ai_flags &= (~TRIG_WAKE_EOS);
-			rt_printk
+			printk
 				("comedi%d: WAR: DMA0 buf too short, cann't support TRIG_WAKE_EOS (%d<%d)\n",
 				dev->minor, dmalen0,
 				devpriv->ai_n_realscanlen << 1);
@@ -1044,7 +1044,7 @@ static int Compute_and_setup_dma(struct comedi_device *dev)
 			if (devpriv->useeoshandle)
 				dmalen0 += 2;
 			if (dmalen0 < 4) {
-				rt_printk
+				printk
 					("comedi%d: ERR: DMA0 buf len bug? (%d<4)\n",
 					dev->minor, dmalen0);
 				dmalen0 = 4;
@@ -1055,7 +1055,7 @@ static int Compute_and_setup_dma(struct comedi_device *dev)
 		if (dmalen1 < (devpriv->ai_n_realscanlen << 1)) {
 			/*  uff, too short DMA buffer, disable EOS support! */
 			devpriv->ai_flags &= (~TRIG_WAKE_EOS);
-			rt_printk
+			printk
 				("comedi%d: WAR: DMA1 buf too short, cann't support TRIG_WAKE_EOS (%d<%d)\n",
 				dev->minor, dmalen1,
 				devpriv->ai_n_realscanlen << 1);
@@ -1066,7 +1066,7 @@ static int Compute_and_setup_dma(struct comedi_device *dev)
 			if (devpriv->useeoshandle)
 				dmalen1 -= 2;
 			if (dmalen1 < 4) {
-				rt_printk
+				printk
 					("comedi%d: ERR: DMA1 buf len bug? (%d<4)\n",
 					dev->minor, dmalen1);
 				dmalen1 = 4;
@@ -1464,7 +1464,7 @@ static int pci9118_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	outl(devpriv->AdControlReg, dev->iobase + PCI9118_ADCNTRL);
 	devpriv->AdFunctionReg = AdFunction_PDTrg | AdFunction_PETrg;	/*  positive triggers, no S&H, no burst, burst stop, no post trigger, no about trigger, trigger stop */
 	outl(devpriv->AdFunctionReg, dev->iobase + PCI9118_ADFUNC);
-	comedi_udelay(1);
+	udelay(1);
 	outl(0, dev->iobase + PCI9118_DELFIFO);	/*  flush FIFO */
 	inl(dev->iobase + PCI9118_ADSTAT);	/*  flush A/D and INT status register */
 	inl(dev->iobase + PCI9118_INTSRC);
@@ -1497,7 +1497,7 @@ static int check_channel_list(struct comedi_device *dev, struct comedi_subdevice
 		return 0;
 	}
 	if ((frontadd + n_chan + backadd) > s->len_chanlist) {
-		rt_printk
+		printk
 			("comedi%d: range/channel list is too long for actual configuration (%d>%d)!",
 			dev->minor, n_chan,
 			s->len_chanlist - frontadd - backadd);
@@ -1641,7 +1641,7 @@ static int setup_channel_list(struct comedi_device *dev, struct comedi_subdevice
 #endif
 #endif
 	outl(0, dev->iobase + PCI9118_SCANMOD);	/*  close scan queue */
-/* comedi_udelay(100);                               important delay, or first sample will be cripled */
+/* udelay(100);                               important delay, or first sample will be cripled */
 
 	DPRINTK("adl_pci9118 EDBG: END: setup_channel_list()\n");
 	return 1;		/*  we can serve this with scan logic */
@@ -1716,7 +1716,7 @@ static void start_pacer(struct comedi_device *dev, int mode, unsigned int diviso
 	outl(0x74, dev->iobase + PCI9118_CNTCTRL);
 	outl(0xb4, dev->iobase + PCI9118_CNTCTRL);
 /* outl(0x30, dev->iobase + PCI9118_CNTCTRL); */
-	comedi_udelay(1);
+	udelay(1);
 
 	if ((mode == 1) || (mode == 2) || (mode == 4)) {
 		outl(divisor2 & 0xff, dev->iobase + PCI9118_CNT2);
@@ -1817,7 +1817,7 @@ static int pci9118_reset(struct comedi_device *dev)
 	outl(devpriv->ao_data[0], dev->iobase + PCI9118_DA1);	/*  reset A/D outs to 0V */
 	outl(devpriv->ao_data[1], dev->iobase + PCI9118_DA2);
 	outl(0, dev->iobase + PCI9118_DO);	/*  reset digi outs to L */
-	comedi_udelay(10);
+	udelay(10);
 	inl(dev->iobase + PCI9118_AD_DATA);
 	outl(0, dev->iobase + PCI9118_DELFIFO);	/*  flush FIFO */
 	outl(0, dev->iobase + PCI9118_INTSRC);	/*  remove INT requests */
@@ -1848,7 +1848,7 @@ static int pci9118_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	unsigned char pci_bus, pci_slot, pci_func;
 	u16 u16w;
 
-	rt_printk("comedi%d: adl_pci9118: board=%s", dev->minor,
+	printk("comedi%d: adl_pci9118: board=%s", dev->minor,
 		this_board->name);
 
 	opt_bus = it->options[0];
@@ -1861,7 +1861,7 @@ static int pci9118_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	ret = alloc_private(dev, sizeof(struct pci9118_private));
 	if (ret < 0) {
-		rt_printk(" - Allocation failed!\n");
+		printk(" - Allocation failed!\n");
 		return -ENOMEM;
 	}
 
@@ -1890,10 +1890,10 @@ static int pci9118_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	if (!pcidev) {
 		if (opt_bus || opt_slot) {
-			rt_printk(" - Card at b:s %d:%d %s\n",
+			printk(" - Card at b:s %d:%d %s\n",
 				opt_bus, opt_slot, errstr);
 		} else {
-			rt_printk(" - Card %s\n", errstr);
+			printk(" - Card %s\n", errstr);
 		}
 		return -EIO;
 	}
@@ -1909,7 +1909,7 @@ static int pci9118_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	iobase_a = pci_resource_start(pcidev, 0);
 	iobase_9 = pci_resource_start(pcidev, 2);
 
-	rt_printk(", b:s:f=%d:%d:%d, io=0x%4lx, 0x%4lx", pci_bus, pci_slot,
+	printk(", b:s:f=%d:%d:%d, io=0x%4lx, 0x%4lx", pci_bus, pci_slot,
 		pci_func, iobase_9, iobase_a);
 
 	dev->iobase = iobase_9;
@@ -1923,16 +1923,16 @@ static int pci9118_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	if (it->options[3] & 2)
 		irq = 0;	/*  user don't want use IRQ */
 	if (irq > 0) {
-		if (comedi_request_irq(irq, interrupt_pci9118, IRQF_SHARED,
+		if (request_irq(irq, interrupt_pci9118, IRQF_SHARED,
 				"ADLink PCI-9118", dev)) {
-			rt_printk(", unable to allocate IRQ %d, DISABLING IT",
+			printk(", unable to allocate IRQ %d, DISABLING IT",
 				irq);
 			irq = 0;	/* Can't use IRQ */
 		} else {
-			rt_printk(", irq=%u", irq);
+			printk(", irq=%u", irq);
 		}
 	} else {
-		rt_printk(", IRQ disabled");
+		printk(", IRQ disabled");
 	}
 
 	dev->irq = irq;
@@ -1958,7 +1958,7 @@ static int pci9118_attach(struct comedi_device *dev, struct comedi_devconfig *it
 			}
 		}
 		if (!devpriv->dmabuf_virt[0]) {
-			rt_printk(", Can't allocate DMA buffer, DMA disabled!");
+			printk(", Can't allocate DMA buffer, DMA disabled!");
 			master = 0;
 		}
 
@@ -1969,9 +1969,9 @@ static int pci9118_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	devpriv->master = master;
 	if (devpriv->master)
-		rt_printk(", bus master");
+		printk(", bus master");
 	else
-		rt_printk(", no bus master");
+		printk(", no bus master");
 
 	devpriv->usemux = 0;
 	if (it->options[2] > 0) {
@@ -1982,7 +1982,7 @@ static int pci9118_attach(struct comedi_device *dev, struct comedi_devconfig *it
 			if (devpriv->usemux > 128) {
 				devpriv->usemux = 128;	/*  max 128 channels with softare S&H! */
 			}
-		rt_printk(", ext. mux %d channels", devpriv->usemux);
+		printk(", ext. mux %d channels", devpriv->usemux);
 	}
 
 	devpriv->softsshdelay = it->options[4];
@@ -1995,7 +1995,7 @@ static int pci9118_attach(struct comedi_device *dev, struct comedi_devconfig *it
 		devpriv->softsshhold = 0x80;
 	}
 
-	rt_printk(".\n");
+	printk(".\n");
 
 	pci_read_config_word(devpriv->pcidev, PCI_COMMAND, &u16w);
 	pci_write_config_word(devpriv->pcidev, PCI_COMMAND, u16w | 64);	/*  Enable parity check for parity error */
@@ -2081,7 +2081,7 @@ static int pci9118_detach(struct comedi_device *dev)
 		if (devpriv->valid)
 			pci9118_reset(dev);
 		if (dev->irq)
-			comedi_free_irq(dev->irq, dev);
+			free_irq(dev->irq, dev);
 		if (devpriv->pcidev) {
 			if (dev->iobase) {
 				comedi_pci_disable(devpriv->pcidev);
diff --git a/drivers/staging/comedi/drivers/adq12b.c b/drivers/staging/comedi/drivers/adq12b.c
index c51e9ba58808..d09d1493a8b7 100644
--- a/drivers/staging/comedi/drivers/adq12b.c
+++ b/drivers/staging/comedi/drivers/adq12b.c
@@ -325,7 +325,7 @@ static int adq12b_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s
         channel = CR_CHAN(insn->chanspec);
         if (channel != devpriv->last_channel || range != devpriv->last_range) {
           outb((range << 4) | channel, dev->iobase + ADQ12B_CTREG);
-          comedi_udelay(50);   /* wait for the mux to settle */
+          udelay(50);   /* wait for the mux to settle */
         }
 
         /* trigger conversion */
@@ -337,7 +337,7 @@ static int adq12b_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s
           /* wait for end of convertion */
 	  i = 0;
           do {
-/* comedi_udelay(1); */
+/* udelay(1); */
 	    status = inb(dev->iobase + ADQ12B_STINR);
             status = status & ADQ12B_EOC;
           } while (status == 0 && ++i < TIMEOUT);
@@ -347,7 +347,7 @@ static int adq12b_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s
           hi = inb(dev->iobase + ADQ12B_ADHIG);
           lo = inb(dev->iobase + ADQ12B_ADLOW);
 
-          /* rt_printk("debug: chan=%d range=%d status=%d hi=%d lo=%d\n", channel, range, status,  hi, lo); */
+          /* printk("debug: chan=%d range=%d status=%d hi=%d lo=%d\n", channel, range, status,  hi, lo); */
           data[n] = (hi << 8) | lo;
 
         }
diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c b/drivers/staging/comedi/drivers/adv_pci1710.c
index f0aa576dc9e8..0b56c14e2d59 100644
--- a/drivers/staging/comedi/drivers/adv_pci1710.c
+++ b/drivers/staging/comedi/drivers/adv_pci1710.c
@@ -58,7 +58,7 @@ Configuration options:
 
 #undef DPRINTK
 #ifdef PCI171X_EXTDEBUG
-#define DPRINTK(fmt, args...) rt_printk(fmt, ## args)
+#define DPRINTK(fmt, args...) printk(fmt, ## args)
 #else
 #define DPRINTK(fmt, args...)
 #endif
@@ -348,7 +348,7 @@ static int pci171x_insn_read_ai(struct comedi_device *dev, struct comedi_subdevi
 		outw(0, dev->iobase + PCI171x_SOFTTRG);	/* start conversion */
 		DPRINTK("adv_pci1710 B n=%d ST=%4x\n", n,
 			inw(dev->iobase + PCI171x_STATUS));
-		/* comedi_udelay(1); */
+		/* udelay(1); */
 		DPRINTK("adv_pci1710 C n=%d ST=%4x\n", n,
 			inw(dev->iobase + PCI171x_STATUS));
 		timeout = 100;
@@ -588,14 +588,14 @@ static void interrupt_pci1710_every_sample(void *d)
 	DPRINTK("adv_pci1710 EDBG: BGN: interrupt_pci1710_every_sample(...)\n");
 	m = inw(dev->iobase + PCI171x_STATUS);
 	if (m & Status_FE) {
-		rt_printk("comedi%d: A/D FIFO empty (%4x)\n", dev->minor, m);
+		printk("comedi%d: A/D FIFO empty (%4x)\n", dev->minor, m);
 		pci171x_ai_cancel(dev, s);
 		s->async->events |= COMEDI_CB_EOA | COMEDI_CB_ERROR;
 		comedi_event(dev, s);
 		return;
 	}
 	if (m & Status_FF) {
-		rt_printk
+		printk
 			("comedi%d: A/D FIFO Full status (Fatal Error!) (%4x)\n",
 			dev->minor, m);
 		pci171x_ai_cancel(dev, s);
@@ -614,7 +614,7 @@ static void interrupt_pci1710_every_sample(void *d)
 		if (this_board->cardtype != TYPE_PCI1713)
 			if ((sampl & 0xf000) !=
 				devpriv->act_chanlist[s->async->cur_chan]) {
-				rt_printk
+				printk
 					("comedi: A/D data dropout: received data from channel %d, expected %d!\n",
 					(sampl & 0xf000) >> 12,
 					(devpriv->act_chanlist[s->async->
@@ -676,7 +676,7 @@ static int move_block_from_fifo(struct comedi_device *dev, struct comedi_subdevi
 		sampl = inw(dev->iobase + PCI171x_AD_DATA);
 		if (this_board->cardtype != TYPE_PCI1713)
 			if ((sampl & 0xf000) != devpriv->act_chanlist[j]) {
-				rt_printk
+				printk
 					("comedi%d: A/D  FIFO data dropout: received data from channel %d, expected %d! (%d/%d/%d/%d/%d/%4x)\n",
 					dev->minor, (sampl & 0xf000) >> 12,
 					(devpriv->
@@ -716,7 +716,7 @@ static void interrupt_pci1710_half_fifo(void *d)
 	DPRINTK("adv_pci1710 EDBG: BGN: interrupt_pci1710_half_fifo(...)\n");
 	m = inw(dev->iobase + PCI171x_STATUS);
 	if (!(m & Status_FH)) {
-		rt_printk("comedi%d: A/D FIFO not half full! (%4x)\n",
+		printk("comedi%d: A/D FIFO not half full! (%4x)\n",
 			dev->minor, m);
 		pci171x_ai_cancel(dev, s);
 		s->async->events |= COMEDI_CB_EOA | COMEDI_CB_ERROR;
@@ -724,7 +724,7 @@ static void interrupt_pci1710_half_fifo(void *d)
 		return;
 	}
 	if (m & Status_FF) {
-		rt_printk
+		printk
 			("comedi%d: A/D FIFO Full status (Fatal Error!) (%4x)\n",
 			dev->minor, m);
 		pci171x_ai_cancel(dev, s);
@@ -888,13 +888,13 @@ static int pci171x_ai_docmd_and_mode(int mode, struct comedi_device *dev,
 */
 static void pci171x_cmdtest_out(int e, struct comedi_cmd *cmd)
 {
-	rt_printk("adv_pci1710 e=%d startsrc=%x scansrc=%x convsrc=%x\n", e,
+	printk("adv_pci1710 e=%d startsrc=%x scansrc=%x convsrc=%x\n", e,
 		cmd->start_src, cmd->scan_begin_src, cmd->convert_src);
-	rt_printk("adv_pci1710 e=%d startarg=%d scanarg=%d convarg=%d\n", e,
+	printk("adv_pci1710 e=%d startarg=%d scanarg=%d convarg=%d\n", e,
 		cmd->start_arg, cmd->scan_begin_arg, cmd->convert_arg);
-	rt_printk("adv_pci1710 e=%d stopsrc=%x scanend=%x\n", e, cmd->stop_src,
+	printk("adv_pci1710 e=%d stopsrc=%x scanend=%x\n", e, cmd->stop_src,
 		cmd->scan_end_src);
-	rt_printk("adv_pci1710 e=%d stoparg=%d scanendarg=%d chanlistlen=%d\n",
+	printk("adv_pci1710 e=%d stoparg=%d scanendarg=%d chanlistlen=%d\n",
 		e, cmd->stop_arg, cmd->scan_end_arg, cmd->chanlist_len);
 }
 #endif
@@ -1122,7 +1122,7 @@ static int check_channel_list(struct comedi_device *dev, struct comedi_subdevice
 	if (n_chan > 1) {
 		chansegment[0] = chanlist[0];	/*  first channel is everytime ok */
 		for (i = 1, seglen = 1; i < n_chan; i++, seglen++) {	/*  build part of chanlist */
-			/*  rt_printk("%d. %d %d\n",i,CR_CHAN(chanlist[i]),CR_RANGE(chanlist[i])); */
+			/*  printk("%d. %d %d\n",i,CR_CHAN(chanlist[i]),CR_RANGE(chanlist[i])); */
 			if (chanlist[0] == chanlist[i])
 				break;	/*  we detect loop, this must by finish */
 			if (CR_CHAN(chanlist[i]) & 1)	/*  odd channel cann't by differencial */
@@ -1136,7 +1136,7 @@ static int check_channel_list(struct comedi_device *dev, struct comedi_subdevice
 			if (CR_AREF(chansegment[i - 1]) == AREF_DIFF)
 				nowmustbechan = (nowmustbechan + 1) % s->n_chan;
 			if (nowmustbechan != CR_CHAN(chanlist[i])) {	/*  channel list isn't continous :-( */
-				rt_printk
+				printk
 					("channel list must be continous! chanlist[%i]=%d but must be %d or %d!\n",
 					i, CR_CHAN(chanlist[i]), nowmustbechan,
 					CR_CHAN(chanlist[0]));
@@ -1146,9 +1146,9 @@ static int check_channel_list(struct comedi_device *dev, struct comedi_subdevice
 		}
 
 		for (i = 0, segpos = 0; i < n_chan; i++) {	/*  check whole chanlist */
-			/* rt_printk("%d %d=%d %d\n",CR_CHAN(chansegment[i%seglen]),CR_RANGE(chansegment[i%seglen]),CR_CHAN(chanlist[i]),CR_RANGE(chanlist[i])); */
+			/* printk("%d %d=%d %d\n",CR_CHAN(chansegment[i%seglen]),CR_RANGE(chansegment[i%seglen]),CR_CHAN(chanlist[i]),CR_RANGE(chanlist[i])); */
 			if (chanlist[i] != chansegment[i % seglen]) {
-				rt_printk
+				printk
 					("bad channel, reference or range number! chanlist[%i]=%d,%d,%d and not %d,%d,%d!\n",
 					i, CR_CHAN(chansegment[i]),
 					CR_RANGE(chansegment[i]),
@@ -1331,14 +1331,14 @@ static int pci1710_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	int i;
 	int board_index;
 
-	rt_printk("comedi%d: adv_pci1710: ", dev->minor);
+	printk("comedi%d: adv_pci1710: ", dev->minor);
 
 	opt_bus = it->options[0];
 	opt_slot = it->options[1];
 
 	ret = alloc_private(dev, sizeof(struct pci1710_private));
 	if (ret < 0) {
-		rt_printk(" - Allocation failed!\n");
+		printk(" - Allocation failed!\n");
 		return -ENOMEM;
 	}
 
@@ -1386,10 +1386,10 @@ static int pci1710_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	if (!pcidev) {
 		if (opt_bus || opt_slot) {
-			rt_printk(" - Card at b:s %d:%d %s\n",
+			printk(" - Card at b:s %d:%d %s\n",
 				opt_bus, opt_slot, errstr);
 		} else {
-			rt_printk(" - Card %s\n", errstr);
+			printk(" - Card %s\n", errstr);
 		}
 		return -EIO;
 	}
@@ -1400,7 +1400,7 @@ static int pci1710_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	irq = pcidev->irq;
 	iobase = pci_resource_start(pcidev, 2);
 
-	rt_printk(", b:s:f=%d:%d:%d, io=0x%4lx", pci_bus, pci_slot, pci_func,
+	printk(", b:s:f=%d:%d:%d, io=0x%4lx", pci_bus, pci_slot, pci_func,
 		iobase);
 
 	dev->iobase = iobase;
@@ -1422,7 +1422,7 @@ static int pci1710_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	ret = alloc_subdevices(dev, n_subdevices);
 	if (ret < 0) {
-		rt_printk(" - Allocation failed!\n");
+		printk(" - Allocation failed!\n");
 		return ret;
 	}
 
@@ -1430,18 +1430,18 @@ static int pci1710_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	if (this_board->have_irq) {
 		if (irq) {
-			if (comedi_request_irq(irq, interrupt_service_pci1710,
+			if (request_irq(irq, interrupt_service_pci1710,
 					IRQF_SHARED, "Advantech PCI-1710",
 					dev)) {
-				rt_printk
+				printk
 					(", unable to allocate IRQ %d, DISABLING IT",
 					irq);
 				irq = 0;	/* Can't use IRQ */
 			} else {
-				rt_printk(", irq=%u", irq);
+				printk(", irq=%u", irq);
 			}
 		} else {
-			rt_printk(", IRQ disabled");
+			printk(", IRQ disabled");
 		}
 	} else {
 		irq = 0;
@@ -1551,7 +1551,7 @@ static int pci1710_detach(struct comedi_device *dev)
 		if (devpriv->valid)
 			pci1710_reset(dev);
 		if (dev->irq)
-			comedi_free_irq(dev->irq, dev);
+			free_irq(dev->irq, dev);
 		if (devpriv->pcidev) {
 			if (dev->iobase) {
 				comedi_pci_disable(devpriv->pcidev);
diff --git a/drivers/staging/comedi/drivers/adv_pci1723.c b/drivers/staging/comedi/drivers/adv_pci1723.c
index c617ec39dabe..e1994a5290bd 100644
--- a/drivers/staging/comedi/drivers/adv_pci1723.c
+++ b/drivers/staging/comedi/drivers/adv_pci1723.c
@@ -304,7 +304,7 @@ static int pci1723_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	int opt_bus, opt_slot;
 	const char *errstr;
 
-	rt_printk("comedi%d: adv_pci1723: board=%s", dev->minor,
+	printk("comedi%d: adv_pci1723: board=%s", dev->minor,
 		this_board->name);
 
 	opt_bus = it->options[0];
@@ -312,7 +312,7 @@ static int pci1723_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	ret = alloc_private(dev, sizeof(struct pci1723_private));
 	if (ret < 0) {
-		rt_printk(" - Allocation failed!\n");
+		printk(" - Allocation failed!\n");
 		return -ENOMEM;
 	}
 
@@ -342,10 +342,10 @@ static int pci1723_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	if (!pcidev) {
 		if (opt_bus || opt_slot) {
-			rt_printk(" - Card at b:s %d:%d %s\n",
+			printk(" - Card at b:s %d:%d %s\n",
 				opt_bus, opt_slot, errstr);
 		} else {
-			rt_printk(" - Card %s\n", errstr);
+			printk(" - Card %s\n", errstr);
 		}
 		return -EIO;
 	}
@@ -355,7 +355,7 @@ static int pci1723_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	pci_func = PCI_FUNC(pcidev->devfn);
 	iobase = pci_resource_start(pcidev, 2);
 
-	rt_printk(", b:s:f=%d:%d:%d, io=0x%4x", pci_bus, pci_slot, pci_func,
+	printk(", b:s:f=%d:%d:%d, io=0x%4x", pci_bus, pci_slot, pci_func,
 		iobase);
 
 	dev->iobase = iobase;
@@ -372,7 +372,7 @@ static int pci1723_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	ret = alloc_subdevices(dev, n_subdevices);
 	if (ret < 0) {
-		rt_printk(" - Allocation failed!\n");
+		printk(" - Allocation failed!\n");
 		return ret;
 	}
 
diff --git a/drivers/staging/comedi/drivers/adv_pci_dio.c b/drivers/staging/comedi/drivers/adv_pci_dio.c
index 7d66f2ba6b70..5a8c0a3bb2f8 100644
--- a/drivers/staging/comedi/drivers/adv_pci_dio.c
+++ b/drivers/staging/comedi/drivers/adv_pci_dio.c
@@ -40,7 +40,7 @@ Configuration options:
 
 #undef DPRINTK
 #ifdef PCI_DIO_EXTDEBUG
-#define DPRINTK(fmt, args...) rt_printk(fmt, ## args)
+#define DPRINTK(fmt, args...) printk(fmt, ## args)
 #else
 #define DPRINTK(fmt, args...)
 #endif
@@ -451,7 +451,7 @@ static int pci1760_unchecked_mbxrequest(struct comedi_device *dev,
 				ok = 1;
 				break;
 			}
-			comedi_udelay(1);
+			udelay(1);
 		}
 		if (ok)
 			return 0;
@@ -896,11 +896,11 @@ static int pci_dio_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	unsigned long iobase;
 	struct pci_dev *pcidev;
 
-	rt_printk("comedi%d: adv_pci_dio: ", dev->minor);
+	printk("comedi%d: adv_pci_dio: ", dev->minor);
 
 	ret = alloc_private(dev, sizeof(struct pci_dio_private));
 	if (ret < 0) {
-		rt_printk(", Error: Cann't allocate private memory!\n");
+		printk(", Error: Cann't allocate private memory!\n");
 		return -ENOMEM;
 	}
 
@@ -932,18 +932,18 @@ static int pci_dio_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	}
 
 	if (!dev->board_ptr) {
-		rt_printk
+		printk
 			(", Error: Requested type of the card was not found!\n");
 		return -EIO;
 	}
 
 	if (comedi_pci_enable(pcidev, driver_pci_dio.driver_name)) {
-		rt_printk
+		printk
 			(", Error: Can't enable PCI device and request regions!\n");
 		return -EIO;
 	}
 	iobase = pci_resource_start(pcidev, this_board->main_pci_region);
-	rt_printk(", b:s:f=%d:%d:%d, io=0x%4lx",
+	printk(", b:s:f=%d:%d:%d, io=0x%4lx",
 		pcidev->bus->number, PCI_SLOT(pcidev->devfn),
 		PCI_FUNC(pcidev->devfn), iobase);
 
@@ -968,11 +968,11 @@ static int pci_dio_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	ret = alloc_subdevices(dev, n_subdevices);
 	if (ret < 0) {
-		rt_printk(", Error: Cann't allocate subdevice memory!\n");
+		printk(", Error: Cann't allocate subdevice memory!\n");
 		return ret;
 	}
 
-	rt_printk(".\n");
+	printk(".\n");
 
 	subdev = 0;
 
diff --git a/drivers/staging/comedi/drivers/aio_aio12_8.c b/drivers/staging/comedi/drivers/aio_aio12_8.c
index e77d33797494..72283ae81368 100644
--- a/drivers/staging/comedi/drivers/aio_aio12_8.c
+++ b/drivers/staging/comedi/drivers/aio_aio12_8.c
@@ -110,7 +110,7 @@ static int aio_aio12_8_ai_read(struct comedi_device *dev, struct comedi_subdevic
 			!(inb(dev->iobase + AIO12_8_STATUS) & STATUS_ADC_EOC)) {
 			timeout--;
 			printk("timeout %d\n", timeout);
-			comedi_udelay(1);
+			udelay(1);
 		}
 		if (timeout == 0) {
 			comedi_error(dev, "ADC timeout");
diff --git a/drivers/staging/comedi/drivers/amplc_dio200.c b/drivers/staging/comedi/drivers/amplc_dio200.c
index ddf58d4866eb..744680059faf 100644
--- a/drivers/staging/comedi/drivers/amplc_dio200.c
+++ b/drivers/staging/comedi/drivers/amplc_dio200.c
@@ -655,12 +655,12 @@ dio200_inttrig_start_intr(struct comedi_device *dev, struct comedi_subdevice *s,
 
 	subpriv = s->private;
 
-	comedi_spin_lock_irqsave(&subpriv->spinlock, flags);
+	spin_lock_irqsave(&subpriv->spinlock, flags);
 	s->async->inttrig = 0;
 	if (subpriv->active) {
 		event = dio200_start_intr(dev, s);
 	}
-	comedi_spin_unlock_irqrestore(&subpriv->spinlock, flags);
+	spin_unlock_irqrestore(&subpriv->spinlock, flags);
 
 	if (event) {
 		comedi_event(dev, s);
@@ -684,7 +684,7 @@ static int dio200_handle_read_intr(struct comedi_device *dev, struct comedi_subd
 
 	triggered = 0;
 
-	comedi_spin_lock_irqsave(&subpriv->spinlock, flags);
+	spin_lock_irqsave(&subpriv->spinlock, flags);
 	oldevents = s->async->events;
 	if (subpriv->has_int_sce) {
 		/*
@@ -773,7 +773,7 @@ static int dio200_handle_read_intr(struct comedi_device *dev, struct comedi_subd
 			}
 		}
 	}
-	comedi_spin_unlock_irqrestore(&subpriv->spinlock, flags);
+	spin_unlock_irqrestore(&subpriv->spinlock, flags);
 
 	if (oldevents != s->async->events) {
 		comedi_event(dev, s);
@@ -790,11 +790,11 @@ static int dio200_subdev_intr_cancel(struct comedi_device *dev, struct comedi_su
 	struct dio200_subdev_intr *subpriv = s->private;
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&subpriv->spinlock, flags);
+	spin_lock_irqsave(&subpriv->spinlock, flags);
 	if (subpriv->active) {
 		dio200_stop_intr(dev, s);
 	}
-	comedi_spin_unlock_irqrestore(&subpriv->spinlock, flags);
+	spin_unlock_irqrestore(&subpriv->spinlock, flags);
 
 	return 0;
 }
@@ -916,7 +916,7 @@ static int dio200_subdev_intr_cmd(struct comedi_device *dev, struct comedi_subde
 	unsigned long flags;
 	int event = 0;
 
-	comedi_spin_lock_irqsave(&subpriv->spinlock, flags);
+	spin_lock_irqsave(&subpriv->spinlock, flags);
 	subpriv->active = 1;
 
 	/* Set up end of acquisition. */
@@ -942,7 +942,7 @@ static int dio200_subdev_intr_cmd(struct comedi_device *dev, struct comedi_subde
 		event = dio200_start_intr(dev, s);
 		break;
 	}
-	comedi_spin_unlock_irqrestore(&subpriv->spinlock, flags);
+	spin_unlock_irqrestore(&subpriv->spinlock, flags);
 
 	if (event) {
 		comedi_event(dev, s);
@@ -1398,7 +1398,7 @@ static int dio200_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (irq) {
 		unsigned long flags = share_irq ? IRQF_SHARED : 0;
 
-		if (comedi_request_irq(irq, dio200_interrupt, flags,
+		if (request_irq(irq, dio200_interrupt, flags,
 				DIO200_DRIVER_NAME, dev) >= 0) {
 			dev->irq = irq;
 		} else {
@@ -1444,7 +1444,7 @@ static int dio200_detach(struct comedi_device *dev)
 		DIO200_DRIVER_NAME);
 
 	if (dev->irq) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 	if (dev->subdevices) {
 		layout = thislayout;
diff --git a/drivers/staging/comedi/drivers/amplc_pc236.c b/drivers/staging/comedi/drivers/amplc_pc236.c
index 235cbfffa14b..48d7ccb4a3fe 100644
--- a/drivers/staging/comedi/drivers/amplc_pc236.c
+++ b/drivers/staging/comedi/drivers/amplc_pc236.c
@@ -372,7 +372,7 @@ static int pc236_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (irq) {
 		unsigned long flags = share_irq ? IRQF_SHARED : 0;
 
-		if (comedi_request_irq(irq, pc236_interrupt, flags,
+		if (request_irq(irq, pc236_interrupt, flags,
 				PC236_DRIVER_NAME, dev) >= 0) {
 			dev->irq = irq;
 			s->type = COMEDI_SUBD_DI;
@@ -421,7 +421,7 @@ static int pc236_detach(struct comedi_device *dev)
 		pc236_intr_disable(dev);
 	}
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	if (dev->subdevices) {
 		subdev_8255_cleanup(dev, dev->subdevices + 0);
 	}
@@ -471,13 +471,13 @@ static void pc236_intr_disable(struct comedi_device *dev)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	devpriv->enable_irq = 0;
 #ifdef CONFIG_COMEDI_PCI
 	if (devpriv->lcr_iobase)
 		outl(PCI236_INTR_DISABLE, devpriv->lcr_iobase + PLX9052_INTCSR);
 #endif
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 }
 
 /*
@@ -489,13 +489,13 @@ static void pc236_intr_enable(struct comedi_device *dev)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	devpriv->enable_irq = 1;
 #ifdef CONFIG_COMEDI_PCI
 	if (devpriv->lcr_iobase)
 		outl(PCI236_INTR_ENABLE, devpriv->lcr_iobase + PLX9052_INTCSR);
 #endif
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 }
 
 /*
@@ -510,7 +510,7 @@ static int pc236_intr_check(struct comedi_device *dev)
 	int retval = 0;
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	if (devpriv->enable_irq) {
 		retval = 1;
 #ifdef CONFIG_COMEDI_PCI
@@ -527,7 +527,7 @@ static int pc236_intr_check(struct comedi_device *dev)
 		}
 #endif
 	}
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	return retval;
 }
diff --git a/drivers/staging/comedi/drivers/amplc_pci224.c b/drivers/staging/comedi/drivers/amplc_pci224.c
index 6b53cb4b93f9..d1a64e80cddb 100644
--- a/drivers/staging/comedi/drivers/amplc_pci224.c
+++ b/drivers/staging/comedi/drivers/amplc_pci224.c
@@ -542,7 +542,7 @@ static void pci224_ao_stop(struct comedi_device *dev, struct comedi_subdevice *s
 		return;
 	}
 
-	comedi_spin_lock_irqsave(&devpriv->ao_spinlock, flags);
+	spin_lock_irqsave(&devpriv->ao_spinlock, flags);
 	/* Kill the interrupts. */
 	devpriv->intsce = 0;
 	outb(0, devpriv->iobase1 + PCI224_INT_SCE);
@@ -558,10 +558,10 @@ static void pci224_ao_stop(struct comedi_device *dev, struct comedi_subdevice *s
 	 * routine.
 	 */
 	while (devpriv->intr_running && devpriv->intr_cpuid != THISCPU) {
-		comedi_spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
-		comedi_spin_lock_irqsave(&devpriv->ao_spinlock, flags);
+		spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
+		spin_lock_irqsave(&devpriv->ao_spinlock, flags);
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
+	spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
 	/* Reconfigure DAC for insn_write usage. */
 	outw(0, dev->iobase + PCI224_DACCEN);	/* Disable channels. */
 	devpriv->daccon = COMBINE(devpriv->daccon,
@@ -587,14 +587,14 @@ static void pci224_ao_start(struct comedi_device *dev, struct comedi_subdevice *
 		comedi_event(dev, s);
 	} else {
 		/* Enable interrupts. */
-		comedi_spin_lock_irqsave(&devpriv->ao_spinlock, flags);
+		spin_lock_irqsave(&devpriv->ao_spinlock, flags);
 		if (cmd->stop_src == TRIG_EXT) {
 			devpriv->intsce = PCI224_INTR_EXT | PCI224_INTR_DAC;
 		} else {
 			devpriv->intsce = PCI224_INTR_DAC;
 		}
 		outb(devpriv->intsce, devpriv->iobase1 + PCI224_INT_SCE);
-		comedi_spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
+		spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
 	}
 }
 
@@ -655,7 +655,7 @@ static void pci224_ao_handle_fifo(struct comedi_device *dev, struct comedi_subde
 			/* Nothing left to put in the FIFO. */
 			pci224_ao_stop(dev, s);
 			s->async->events |= COMEDI_CB_OVERFLOW;
-			rt_printk(KERN_ERR "comedi%d: "
+			printk(KERN_ERR "comedi%d: "
 				"AO buffer underrun\n", dev->minor);
 		}
 	}
@@ -1155,16 +1155,16 @@ static int pci224_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	 */
 	switch (cmd->start_src) {
 	case TRIG_INT:
-		comedi_spin_lock_irqsave(&devpriv->ao_spinlock, flags);
+		spin_lock_irqsave(&devpriv->ao_spinlock, flags);
 		s->async->inttrig = &pci224_ao_inttrig_start;
-		comedi_spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
+		spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
 		break;
 	case TRIG_EXT:
 		/* Enable external interrupt trigger to start acquisition. */
-		comedi_spin_lock_irqsave(&devpriv->ao_spinlock, flags);
+		spin_lock_irqsave(&devpriv->ao_spinlock, flags);
 		devpriv->intsce |= PCI224_INTR_EXT;
 		outb(devpriv->intsce, devpriv->iobase1 + PCI224_INT_SCE);
-		comedi_spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
+		spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
 		break;
 	}
 
@@ -1227,14 +1227,14 @@ static irqreturn_t pci224_interrupt(int irq, void *d)
 	intstat = inb(devpriv->iobase1 + PCI224_INT_SCE) & 0x3F;
 	if (intstat) {
 		retval = 1;
-		comedi_spin_lock_irqsave(&devpriv->ao_spinlock, flags);
+		spin_lock_irqsave(&devpriv->ao_spinlock, flags);
 		valid_intstat = devpriv->intsce & intstat;
 		/* Temporarily disable interrupt sources. */
 		curenab = devpriv->intsce & ~intstat;
 		outb(curenab, devpriv->iobase1 + PCI224_INT_SCE);
 		devpriv->intr_running = 1;
 		devpriv->intr_cpuid = THISCPU;
-		comedi_spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
+		spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
 		if (valid_intstat != 0) {
 			cmd = &s->async->cmd;
 			if (valid_intstat & PCI224_INTR_EXT) {
@@ -1250,13 +1250,13 @@ static irqreturn_t pci224_interrupt(int irq, void *d)
 			}
 		}
 		/* Reenable interrupt sources. */
-		comedi_spin_lock_irqsave(&devpriv->ao_spinlock, flags);
+		spin_lock_irqsave(&devpriv->ao_spinlock, flags);
 		if (curenab != devpriv->intsce) {
 			outb(devpriv->intsce,
 				devpriv->iobase1 + PCI224_INT_SCE);
 		}
 		devpriv->intr_running = 0;
-		comedi_spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
+		spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
 	}
 	return IRQ_RETVAL(retval);
 }
@@ -1478,8 +1478,8 @@ static int pci224_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	dev->board_name = thisboard->name;
 
 	if (irq) {
-		ret = comedi_request_irq(irq, pci224_interrupt, IRQF_SHARED,
-			DRIVER_NAME, dev);
+		ret = request_irq(irq, pci224_interrupt, IRQF_SHARED,
+				  DRIVER_NAME, dev);
 		if (ret < 0) {
 			printk(KERN_ERR "comedi%d: error! "
 				"unable to allocate irq %u\n", dev->minor, irq);
@@ -1515,7 +1515,7 @@ static int pci224_detach(struct comedi_device *dev)
 	printk(KERN_DEBUG "comedi%d: %s: detach\n", dev->minor, DRIVER_NAME);
 
 	if (dev->irq) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 	if (dev->subdevices) {
 		struct comedi_subdevice *s;
diff --git a/drivers/staging/comedi/drivers/amplc_pci230.c b/drivers/staging/comedi/drivers/amplc_pci230.c
index 057443551c23..21133f068bf3 100644
--- a/drivers/staging/comedi/drivers/amplc_pci230.c
+++ b/drivers/staging/comedi/drivers/amplc_pci230.c
@@ -876,8 +876,8 @@ static int pci230_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		dev->iobase + PCI230_ADCCON);
 
 	/* Register the interrupt handler. */
-	irq_hdl = comedi_request_irq(devpriv->pci_dev->irq, pci230_interrupt,
-		IRQF_SHARED, "amplc_pci230", dev);
+	irq_hdl = request_irq(devpriv->pci_dev->irq, pci230_interrupt,
+			      IRQF_SHARED, "amplc_pci230", dev);
 	if (irq_hdl < 0) {
 		printk("comedi%d: unable to register irq, "
 			"commands will not be available %d\n", dev->minor,
@@ -970,7 +970,7 @@ static int pci230_detach(struct comedi_device *dev)
 		subdev_8255_cleanup(dev, dev->subdevices + 2);
 
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	if (devpriv) {
 		if (devpriv->pci_dev) {
@@ -995,7 +995,7 @@ static int get_resources(struct comedi_device *dev, unsigned int res_mask,
 
 	ok = 1;
 	claimed = 0;
-	comedi_spin_lock_irqsave(&devpriv->res_spinlock, irqflags);
+	spin_lock_irqsave(&devpriv->res_spinlock, irqflags);
 	for (b = 1, i = 0; (i < NUM_RESOURCES)
 		&& (res_mask != 0); b <<= 1, i++) {
 		if ((res_mask & b) != 0) {
@@ -1016,7 +1016,7 @@ static int get_resources(struct comedi_device *dev, unsigned int res_mask,
 			}
 		}
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->res_spinlock, irqflags);
+	spin_unlock_irqrestore(&devpriv->res_spinlock, irqflags);
 	return ok;
 }
 
@@ -1033,7 +1033,7 @@ static void put_resources(struct comedi_device *dev, unsigned int res_mask,
 	unsigned int b;
 	unsigned long irqflags;
 
-	comedi_spin_lock_irqsave(&devpriv->res_spinlock, irqflags);
+	spin_lock_irqsave(&devpriv->res_spinlock, irqflags);
 	for (b = 1, i = 0; (i < NUM_RESOURCES)
 		&& (res_mask != 0); b <<= 1, i++) {
 		if ((res_mask & b) != 0) {
@@ -1043,7 +1043,7 @@ static void put_resources(struct comedi_device *dev, unsigned int res_mask,
 			}
 		}
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->res_spinlock, irqflags);
+	spin_unlock_irqrestore(&devpriv->res_spinlock, irqflags);
 }
 
 static inline void put_one_resource(struct comedi_device *dev, unsigned int resource,
@@ -1145,12 +1145,12 @@ static int pci230_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s
 			status = inw(dev->iobase + PCI230_ADCCON);
 			if (!(status & PCI230_ADC_FIFO_EMPTY))
 				break;
-			comedi_udelay(1);
+			udelay(1);
 		}
 		if (i == TIMEOUT) {
-			/* rt_printk() should be used instead of printk()
+			/* printk() should be used instead of printk()
 			 * whenever the code can be called from real-time. */
-			rt_printk("timeout\n");
+			printk("timeout\n");
 			return -ETIMEDOUT;
 		}
 
@@ -1426,12 +1426,12 @@ static int pci230_ao_inttrig_scan_begin(struct comedi_device *dev,
 	if (trig_num != 0)
 		return -EINVAL;
 
-	comedi_spin_lock_irqsave(&devpriv->ao_stop_spinlock, irqflags);
+	spin_lock_irqsave(&devpriv->ao_stop_spinlock, irqflags);
 	if (test_bit(AO_CMD_STARTED, &devpriv->state)) {
 		/* Perform scan. */
 		if (devpriv->hwver < 2) {
 			/* Not using DAC FIFO. */
-			comedi_spin_unlock_irqrestore(&devpriv->
+			spin_unlock_irqrestore(&devpriv->
 				ao_stop_spinlock, irqflags);
 			pci230_handle_ao_nofifo(dev, s);
 			comedi_event(dev, s);
@@ -1439,12 +1439,12 @@ static int pci230_ao_inttrig_scan_begin(struct comedi_device *dev,
 			/* Using DAC FIFO. */
 			/* Read DACSWTRIG register to trigger conversion. */
 			inw(dev->iobase + PCI230P2_DACSWTRIG);
-			comedi_spin_unlock_irqrestore(&devpriv->
+			spin_unlock_irqrestore(&devpriv->
 				ao_stop_spinlock, irqflags);
 		}
 		/* Delay.  Should driver be responsible for this? */
 		/* XXX TODO: See if DAC busy bit can be used. */
-		comedi_udelay(8);
+		udelay(8);
 	}
 
 	return 1;
@@ -1508,13 +1508,13 @@ static void pci230_ao_start(struct comedi_device *dev, struct comedi_subdevice *
 			if (devpriv->hwver < 2) {
 				/* Not using DAC FIFO. */
 				/* Enable CT1 timer interrupt. */
-				comedi_spin_lock_irqsave(&devpriv->isr_spinlock,
+				spin_lock_irqsave(&devpriv->isr_spinlock,
 					irqflags);
 				devpriv->int_en |= PCI230_INT_ZCLK_CT1;
 				devpriv->ier |= PCI230_INT_ZCLK_CT1;
 				outb(devpriv->ier,
 					devpriv->iobase1 + PCI230_INT_SCE);
-				comedi_spin_unlock_irqrestore(&devpriv->
+				spin_unlock_irqrestore(&devpriv->
 					isr_spinlock, irqflags);
 			}
 			/* Set CT1 gate high to start counting. */
@@ -1527,12 +1527,12 @@ static void pci230_ao_start(struct comedi_device *dev, struct comedi_subdevice *
 		}
 		if (devpriv->hwver >= 2) {
 			/* Using DAC FIFO.  Enable DAC FIFO interrupt. */
-			comedi_spin_lock_irqsave(&devpriv->isr_spinlock,
+			spin_lock_irqsave(&devpriv->isr_spinlock,
 				irqflags);
 			devpriv->int_en |= PCI230P2_INT_DAC;
 			devpriv->ier |= PCI230P2_INT_DAC;
 			outb(devpriv->ier, devpriv->iobase1 + PCI230_INT_SCE);
-			comedi_spin_unlock_irqrestore(&devpriv->isr_spinlock,
+			spin_unlock_irqrestore(&devpriv->isr_spinlock,
 				irqflags);
 		}
 	}
@@ -2088,7 +2088,7 @@ static int pci230_ai_inttrig_convert(struct comedi_device *dev, struct comedi_su
 	if (trig_num != 0)
 		return -EINVAL;
 
-	comedi_spin_lock_irqsave(&devpriv->ai_stop_spinlock, irqflags);
+	spin_lock_irqsave(&devpriv->ai_stop_spinlock, irqflags);
 	if (test_bit(AI_CMD_STARTED, &devpriv->state)) {
 		unsigned int delayus;
 
@@ -2112,11 +2112,11 @@ static int pci230_ai_inttrig_convert(struct comedi_device *dev, struct comedi_su
 			/* single-ended or PCI230+/260+ */
 			delayus = 4;
 		}
-		comedi_spin_unlock_irqrestore(&devpriv->ai_stop_spinlock,
+		spin_unlock_irqrestore(&devpriv->ai_stop_spinlock,
 			irqflags);
-		comedi_udelay(delayus);
+		udelay(delayus);
 	} else {
-		comedi_spin_unlock_irqrestore(&devpriv->ai_stop_spinlock,
+		spin_unlock_irqrestore(&devpriv->ai_stop_spinlock,
 			irqflags);
 	}
 
@@ -2132,7 +2132,7 @@ static int pci230_ai_inttrig_scan_begin(struct comedi_device *dev,
 	if (trig_num != 0)
 		return -EINVAL;
 
-	comedi_spin_lock_irqsave(&devpriv->ai_stop_spinlock, irqflags);
+	spin_lock_irqsave(&devpriv->ai_stop_spinlock, irqflags);
 	if (test_bit(AI_CMD_STARTED, &devpriv->state)) {
 		/* Trigger scan by waggling CT0 gate source. */
 		zgat = GAT_CONFIG(0, GAT_GND);
@@ -2140,7 +2140,7 @@ static int pci230_ai_inttrig_scan_begin(struct comedi_device *dev,
 		zgat = GAT_CONFIG(0, GAT_VCC);
 		outb(zgat, devpriv->iobase1 + PCI230_ZGAT_SCE);
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->ai_stop_spinlock, irqflags);
+	spin_unlock_irqrestore(&devpriv->ai_stop_spinlock, irqflags);
 
 	return 1;
 }
@@ -2160,11 +2160,11 @@ static void pci230_ai_start(struct comedi_device *dev, struct comedi_subdevice *
 		comedi_event(dev, s);
 	} else {
 		/* Enable ADC FIFO trigger level interrupt. */
-		comedi_spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
+		spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
 		devpriv->int_en |= PCI230_INT_ADC;
 		devpriv->ier |= PCI230_INT_ADC;
 		outb(devpriv->ier, devpriv->iobase1 + PCI230_INT_SCE);
-		comedi_spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
+		spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
 
 		/* Update conversion trigger source which is currently set
 		 * to CT2 output, which is currently stuck high. */
@@ -2426,7 +2426,7 @@ static int pci230_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	 * FIFO reset (above) and the second FIFO reset (below). Setting the
 	 * channel gains and scan list _before_ the first FIFO reset also
 	 * helps, though only slightly. */
-	comedi_udelay(25);
+	udelay(25);
 
 	/* Reset FIFO again. */
 	outw(adccon | PCI230_ADC_FIFO_RESET, dev->iobase + PCI230_ADCCON);
@@ -2575,7 +2575,7 @@ static irqreturn_t pci230_interrupt(int irq, void *d)
 		return IRQ_NONE;
 	}
 
-	comedi_spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
+	spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
 	valid_status_int = devpriv->int_en & status_int;
 	/* Disable triggered interrupts.
 	 * (Only those interrupts that need re-enabling, are, later in the
@@ -2584,7 +2584,7 @@ static irqreturn_t pci230_interrupt(int irq, void *d)
 	outb(devpriv->ier, devpriv->iobase1 + PCI230_INT_SCE);
 	devpriv->intr_running = 1;
 	devpriv->intr_cpuid = THISCPU;
-	comedi_spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
+	spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
 
 	/*
 	 * Check the source of interrupt and handle it.
@@ -2613,13 +2613,13 @@ static irqreturn_t pci230_interrupt(int irq, void *d)
 	}
 
 	/* Reenable interrupts. */
-	comedi_spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
+	spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
 	if (devpriv->ier != devpriv->int_en) {
 		devpriv->ier = devpriv->int_en;
 		outb(devpriv->ier, devpriv->iobase1 + PCI230_INT_SCE);
 	}
 	devpriv->intr_running = 0;
-	comedi_spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
+	spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
 
 	return IRQ_HANDLED;
 }
@@ -2870,9 +2870,9 @@ static void pci230_ao_stop(struct comedi_device *dev, struct comedi_subdevice *s
 	int started;
 	struct comedi_cmd *cmd;
 
-	comedi_spin_lock_irqsave(&devpriv->ao_stop_spinlock, irqflags);
+	spin_lock_irqsave(&devpriv->ao_stop_spinlock, irqflags);
 	started = test_and_clear_bit(AO_CMD_STARTED, &devpriv->state);
-	comedi_spin_unlock_irqrestore(&devpriv->ao_stop_spinlock, irqflags);
+	spin_unlock_irqrestore(&devpriv->ao_stop_spinlock, irqflags);
 	if (!started) {
 		return;
 	}
@@ -2893,17 +2893,17 @@ static void pci230_ao_stop(struct comedi_device *dev, struct comedi_subdevice *s
 	}
 	/* Disable interrupt and wait for interrupt routine to finish running
 	 * unless we are called from the interrupt routine. */
-	comedi_spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
+	spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
 	devpriv->int_en &= ~intsrc;
 	while (devpriv->intr_running && devpriv->intr_cpuid != THISCPU) {
-		comedi_spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
-		comedi_spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
+		spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
+		spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
 	}
 	if (devpriv->ier != devpriv->int_en) {
 		devpriv->ier = devpriv->int_en;
 		outb(devpriv->ier, devpriv->iobase1 + PCI230_INT_SCE);
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
+	spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
 
 	if (devpriv->hwver >= 2) {
 		/* Using DAC FIFO.  Reset FIFO, clear underrun error,
@@ -2930,9 +2930,9 @@ static void pci230_ai_stop(struct comedi_device *dev, struct comedi_subdevice *s
 	struct comedi_cmd *cmd;
 	int started;
 
-	comedi_spin_lock_irqsave(&devpriv->ai_stop_spinlock, irqflags);
+	spin_lock_irqsave(&devpriv->ai_stop_spinlock, irqflags);
 	started = test_and_clear_bit(AI_CMD_STARTED, &devpriv->state);
-	comedi_spin_unlock_irqrestore(&devpriv->ai_stop_spinlock, irqflags);
+	spin_unlock_irqrestore(&devpriv->ai_stop_spinlock, irqflags);
 	if (!started) {
 		return;
 	}
@@ -2947,19 +2947,19 @@ static void pci230_ai_stop(struct comedi_device *dev, struct comedi_subdevice *s
 		pci230_cancel_ct(dev, 0);
 	}
 
-	comedi_spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
+	spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
 	/* Disable ADC interrupt and wait for interrupt routine to finish
 	 * running unless we are called from the interrupt routine. */
 	devpriv->int_en &= ~PCI230_INT_ADC;
 	while (devpriv->intr_running && devpriv->intr_cpuid != THISCPU) {
-		comedi_spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
-		comedi_spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
+		spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
+		spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
 	}
 	if (devpriv->ier != devpriv->int_en) {
 		devpriv->ier = devpriv->int_en;
 		outb(devpriv->ier, devpriv->iobase1 + PCI230_INT_SCE);
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
+	spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
 
 	/* Reset FIFO, disable FIFO and set start conversion source to none.
 	 * Keep se/diff and bip/uni settings */
diff --git a/drivers/staging/comedi/drivers/cb_das16_cs.c b/drivers/staging/comedi/drivers/cb_das16_cs.c
index 516d2ccdaf28..7b064d5df6ff 100644
--- a/drivers/staging/comedi/drivers/cb_das16_cs.c
+++ b/drivers/staging/comedi/drivers/cb_das16_cs.c
@@ -187,8 +187,8 @@ static int das16cs_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	}
 	printk("\n");
 
-	ret = comedi_request_irq(link->irq.AssignedIRQ, das16cs_interrupt,
-		IRQF_SHARED, "cb_das16_cs", dev);
+	ret = request_irq(link->irq.AssignedIRQ, das16cs_interrupt,
+			  IRQF_SHARED, "cb_das16_cs", dev);
 	if (ret < 0) {
 		return ret;
 	}
@@ -270,7 +270,7 @@ static int das16cs_detach(struct comedi_device *dev)
 	printk("comedi%d: das16cs: remove\n", dev->minor);
 
 	if (dev->irq) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 
 	return 0;
@@ -503,7 +503,7 @@ static int das16cs_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *
 		d = data[i];
 
 		outw(devpriv->status1, dev->iobase + 4);
-		comedi_udelay(1);
+		udelay(1);
 
 		status1 = devpriv->status1 & ~0xf;
 		if (chan)
@@ -513,17 +513,17 @@ static int das16cs_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *
 
 /* 		printk("0x%04x\n",status1);*/
 		outw(status1, dev->iobase + 4);
-		comedi_udelay(1);
+		udelay(1);
 
 		for (bit = 15; bit >= 0; bit--) {
 			int b = (d >> bit) & 0x1;
 			b <<= 1;
 /*			printk("0x%04x\n",status1 | b | 0x0000);*/
 			outw(status1 | b | 0x0000, dev->iobase + 4);
-			comedi_udelay(1);
+			udelay(1);
 /*			printk("0x%04x\n",status1 | b | 0x0004);*/
 			outw(status1 | b | 0x0004, dev->iobase + 4);
-			comedi_udelay(1);
+			udelay(1);
 		}
 /*		make high both DAC0CS and DAC1CS to load
 		new data and update analog output*/
diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c
index 11212b01d493..28212ad6461b 100644
--- a/drivers/staging/comedi/drivers/cb_pcidas.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas.c
@@ -588,7 +588,7 @@ static int cb_pcidas_attach(struct comedi_device *dev, struct comedi_devconfig *
 		devpriv->s5933_config + AMCC_OP_REG_INTCSR);
 
 	/*  get irq */
-	if (comedi_request_irq(devpriv->pci_dev->irq, cb_pcidas_interrupt,
+	if (request_irq(devpriv->pci_dev->irq, cb_pcidas_interrupt,
 			IRQF_SHARED, "cb_pcidas", dev)) {
 		printk(" unable to allocate irq %d\n", devpriv->pci_dev->irq);
 		return -EINVAL;
@@ -727,14 +727,14 @@ static int cb_pcidas_detach(struct comedi_device *dev)
 			outl(INTCSR_INBOX_INTR_STATUS,
 				devpriv->s5933_config + AMCC_OP_REG_INTCSR);
 #ifdef CB_PCIDAS_DEBUG
-			rt_printk("detaching, incsr is 0x%x\n",
+			printk("detaching, incsr is 0x%x\n",
 				inl(devpriv->s5933_config +
 					AMCC_OP_REG_INTCSR));
 #endif
 		}
 	}
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	if (dev->subdevices)
 		subdev_8255_cleanup(dev, dev->subdevices + 2);
 	if (devpriv && devpriv->pci_dev) {
@@ -843,13 +843,13 @@ static int cb_pcidas_ao_nofifo_winsn(struct comedi_device *dev, struct comedi_su
 
 	/*  set channel and range */
 	channel = CR_CHAN(insn->chanspec);
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	devpriv->ao_control_bits &=
 		~DAC_MODE_UPDATE_BOTH & ~DAC_RANGE_MASK(channel);
 	devpriv->ao_control_bits |=
 		DACEN | DAC_RANGE(channel, CR_RANGE(insn->chanspec));
 	outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	/*  remember value for readback */
 	devpriv->ao_value[channel] = data[0];
@@ -871,7 +871,7 @@ static int cb_pcidas_ao_fifo_winsn(struct comedi_device *dev, struct comedi_subd
 
 	/*  set channel and range */
 	channel = CR_CHAN(insn->chanspec);
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	devpriv->ao_control_bits &=
 		~DAC_CHAN_EN(0) & ~DAC_CHAN_EN(1) & ~DAC_RANGE_MASK(channel) &
 		~DAC_PACER_MASK;
@@ -879,7 +879,7 @@ static int cb_pcidas_ao_fifo_winsn(struct comedi_device *dev, struct comedi_subd
 		DACEN | DAC_RANGE(channel,
 		CR_RANGE(insn->chanspec)) | DAC_CHAN_EN(channel) | DAC_START;
 	outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	/*  remember value for readback */
 	devpriv->ao_value[channel] = data[0];
@@ -940,13 +940,13 @@ static int dac08_write(struct comedi_device *dev, unsigned int value)
 
 	outw(cal_enable_bits(dev) | (value & 0xff),
 		devpriv->control_status + CALIBRATION_REG);
-	comedi_udelay(1);
+	udelay(1);
 	outw(cal_enable_bits(dev) | SELECT_DAC08_BIT | (value & 0xff),
 		devpriv->control_status + CALIBRATION_REG);
-	comedi_udelay(1);
+	udelay(1);
 	outw(cal_enable_bits(dev) | (value & 0xff),
 		devpriv->control_status + CALIBRATION_REG);
-	comedi_udelay(1);
+	udelay(1);
 
 	return 1;
 }
@@ -1193,7 +1193,7 @@ static int cb_pcidas_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *
 	outw(bits, devpriv->control_status + ADCMUX_CONT);
 
 #ifdef CB_PCIDAS_DEBUG
-	rt_printk("comedi: sent 0x%x to adcmux control\n", bits);
+	printk("comedi: sent 0x%x to adcmux control\n", bits);
 #endif
 
 	/*  load counters */
@@ -1209,7 +1209,7 @@ static int cb_pcidas_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *
 		devpriv->count = cmd->chanlist_len * cmd->stop_arg;
 	}
 	/*  enable interrupts */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	devpriv->adc_fifo_bits |= INTE;
 	devpriv->adc_fifo_bits &= ~INT_MASK;
 	if (cmd->flags & TRIG_WAKE_EOS) {
@@ -1221,12 +1221,12 @@ static int cb_pcidas_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *
 		devpriv->adc_fifo_bits |= INT_FHF;	/* interrupt fifo half full */
 	}
 #ifdef CB_PCIDAS_DEBUG
-	rt_printk("comedi: adc_fifo_bits are 0x%x\n", devpriv->adc_fifo_bits);
+	printk("comedi: adc_fifo_bits are 0x%x\n", devpriv->adc_fifo_bits);
 #endif
 	/*  enable (and clear) interrupts */
 	outw(devpriv->adc_fifo_bits | EOAI | INT | LADFUL,
 		devpriv->control_status + INT_ADCFIFO);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	/*  set start trigger and burst mode */
 	bits = 0;
@@ -1242,7 +1242,7 @@ static int cb_pcidas_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *
 		bits |= BURSTE;
 	outw(bits, devpriv->control_status + TRIG_CONTSTAT);
 #ifdef CB_PCIDAS_DEBUG
-	rt_printk("comedi: sent 0x%x to trig control\n", bits);
+	printk("comedi: sent 0x%x to trig control\n", bits);
 #endif
 
 	return 0;
@@ -1369,7 +1369,7 @@ static int cb_pcidas_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *
 	unsigned long flags;
 
 	/*  set channel limits, gain */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	for (i = 0; i < cmd->chanlist_len; i++) {
 		/*  enable channel */
 		devpriv->ao_control_bits |=
@@ -1381,7 +1381,7 @@ static int cb_pcidas_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *
 
 	/*  disable analog out before settings pacer source and count values */
 	outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	/*  clear fifo */
 	outw(0, devpriv->ao_registers + DACFIFOCLR);
@@ -1403,7 +1403,7 @@ static int cb_pcidas_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *
 		devpriv->ao_count = cmd->chanlist_len * cmd->stop_arg;
 	}
 	/*  set pacer source */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	switch (cmd->scan_begin_src) {
 	case TRIG_TIMER:
 		devpriv->ao_control_bits |= DAC_PACER_INT;
@@ -1412,12 +1412,12 @@ static int cb_pcidas_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *
 		devpriv->ao_control_bits |= DAC_PACER_EXT_RISE;
 		break;
 	default:
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 		comedi_error(dev, "error setting dac pacer source");
 		return -1;
 		break;
 	}
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	async->inttrig = cb_pcidas_ao_inttrig;
 
@@ -1451,10 +1451,10 @@ static int cb_pcidas_ao_inttrig(struct comedi_device *dev,
 	outsw(devpriv->ao_registers + DACDATA, devpriv->ao_buffer, num_bytes);
 
 	/*  enable dac half-full and empty interrupts */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	devpriv->adc_fifo_bits |= DAEMIE | DAHFIE;
 #ifdef CB_PCIDAS_DEBUG
-	rt_printk("comedi: adc_fifo_bits are 0x%x\n", devpriv->adc_fifo_bits);
+	printk("comedi: adc_fifo_bits are 0x%x\n", devpriv->adc_fifo_bits);
 #endif
 	/*  enable and clear interrupts */
 	outw(devpriv->adc_fifo_bits | DAEMI | DAHFI,
@@ -1464,10 +1464,10 @@ static int cb_pcidas_ao_inttrig(struct comedi_device *dev,
 	devpriv->ao_control_bits |= DAC_START | DACEN | DAC_EMPTY;
 	outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR);
 #ifdef CB_PCIDAS_DEBUG
-	rt_printk("comedi: sent 0x%x to dac control\n",
+	printk("comedi: sent 0x%x to dac control\n",
 		devpriv->ao_control_bits);
 #endif
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	async->inttrig = NULL;
 
@@ -1494,8 +1494,8 @@ static irqreturn_t cb_pcidas_interrupt(int irq, void *d)
 
 	s5933_status = inl(devpriv->s5933_config + AMCC_OP_REG_INTCSR);
 #ifdef CB_PCIDAS_DEBUG
-	rt_printk("intcsr 0x%x\n", s5933_status);
-	rt_printk("mbef 0x%x\n", inl(devpriv->s5933_config + AMCC_OP_REG_MBEF));
+	printk("intcsr 0x%x\n", s5933_status);
+	printk("mbef 0x%x\n", inl(devpriv->s5933_config + AMCC_OP_REG_MBEF));
 #endif
 
 	if ((INTCSR_INTR_ASSERTED & s5933_status) == 0)
@@ -1537,10 +1537,10 @@ static irqreturn_t cb_pcidas_interrupt(int irq, void *d)
 			cb_pcidas_cancel(dev, s);
 		}
 		/*  clear half-full interrupt latch */
-		comedi_spin_lock_irqsave(&dev->spinlock, flags);
+		spin_lock_irqsave(&dev->spinlock, flags);
 		outw(devpriv->adc_fifo_bits | INT,
 			devpriv->control_status + INT_ADCFIFO);
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 		/*  else if fifo not empty */
 	} else if (status & (ADNEI | EOBI)) {
 		for (i = 0; i < timeout; i++) {
@@ -1556,27 +1556,27 @@ static irqreturn_t cb_pcidas_interrupt(int irq, void *d)
 			}
 		}
 		/*  clear not-empty interrupt latch */
-		comedi_spin_lock_irqsave(&dev->spinlock, flags);
+		spin_lock_irqsave(&dev->spinlock, flags);
 		outw(devpriv->adc_fifo_bits | INT,
 			devpriv->control_status + INT_ADCFIFO);
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 	} else if (status & EOAI) {
 		comedi_error(dev,
 			"bug! encountered end of aquisition interrupt?");
 		/*  clear EOA interrupt latch */
-		comedi_spin_lock_irqsave(&dev->spinlock, flags);
+		spin_lock_irqsave(&dev->spinlock, flags);
 		outw(devpriv->adc_fifo_bits | EOAI,
 			devpriv->control_status + INT_ADCFIFO);
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 	}
 	/* check for fifo overflow */
 	if (status & LADFUL) {
 		comedi_error(dev, "fifo overflow");
 		/*  clear overflow interrupt latch */
-		comedi_spin_lock_irqsave(&dev->spinlock, flags);
+		spin_lock_irqsave(&dev->spinlock, flags);
 		outw(devpriv->adc_fifo_bits | LADFUL,
 			devpriv->control_status + INT_ADCFIFO);
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 		cb_pcidas_cancel(dev, s);
 		async->events |= COMEDI_CB_EOA | COMEDI_CB_ERROR;
 	}
@@ -1599,10 +1599,10 @@ static void handle_ao_interrupt(struct comedi_device *dev, unsigned int status)
 
 	if (status & DAEMI) {
 		/*  clear dac empty interrupt latch */
-		comedi_spin_lock_irqsave(&dev->spinlock, flags);
+		spin_lock_irqsave(&dev->spinlock, flags);
 		outw(devpriv->adc_fifo_bits | DAEMI,
 			devpriv->control_status + INT_ADCFIFO);
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 		if (inw(devpriv->ao_registers + DAC_CSR) & DAC_EMPTY) {
 			if (cmd->stop_src == TRIG_NONE ||
 				(cmd->stop_src == TRIG_COUNT
@@ -1633,10 +1633,10 @@ static void handle_ao_interrupt(struct comedi_device *dev, unsigned int status)
 		outsw(devpriv->ao_registers + DACDATA, devpriv->ao_buffer,
 			num_points);
 		/*  clear half-full interrupt latch */
-		comedi_spin_lock_irqsave(&dev->spinlock, flags);
+		spin_lock_irqsave(&dev->spinlock, flags);
 		outw(devpriv->adc_fifo_bits | DAHFI,
 			devpriv->control_status + INT_ADCFIFO);
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 	}
 
 	comedi_event(dev, s);
@@ -1647,11 +1647,11 @@ static int cb_pcidas_cancel(struct comedi_device *dev, struct comedi_subdevice *
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	/*  disable interrupts */
 	devpriv->adc_fifo_bits &= ~INTE & ~EOAIE;
 	outw(devpriv->adc_fifo_bits, devpriv->control_status + INT_ADCFIFO);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	/*  disable start trigger source and burst mode */
 	outw(0, devpriv->control_status + TRIG_CONTSTAT);
@@ -1667,7 +1667,7 @@ static int cb_pcidas_ao_cancel(struct comedi_device *dev,
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	/*  disable interrupts */
 	devpriv->adc_fifo_bits &= ~DAHFIE & ~DAEMIE;
 	outw(devpriv->adc_fifo_bits, devpriv->control_status + INT_ADCFIFO);
@@ -1675,7 +1675,7 @@ static int cb_pcidas_ao_cancel(struct comedi_device *dev,
 	/*  disable output */
 	devpriv->ao_control_bits &= ~DACEN & ~DAC_PACER_MASK;
 	outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	return 0;
 }
@@ -1705,7 +1705,7 @@ static void write_calibration_bitstream(struct comedi_device *dev,
 			register_bits |= SERIAL_DATA_IN_BIT;
 		else
 			register_bits &= ~SERIAL_DATA_IN_BIT;
-		comedi_udelay(write_delay);
+		udelay(write_delay);
 		outw(register_bits, devpriv->control_status + CALIBRATION_REG);
 	}
 }
@@ -1716,7 +1716,7 @@ static int caldac_8800_write(struct comedi_device *dev, unsigned int address,
 	static const int num_caldac_channels = 8;
 	static const int bitstream_length = 11;
 	unsigned int bitstream = ((address & 0x7) << 8) | value;
-	static const int caldac_8800_comedi_udelay = 1;
+	static const int caldac_8800_udelay = 1;
 
 	if (address >= num_caldac_channels) {
 		comedi_error(dev, "illegal caldac channel");
@@ -1731,10 +1731,10 @@ static int caldac_8800_write(struct comedi_device *dev, unsigned int address,
 	write_calibration_bitstream(dev, cal_enable_bits(dev), bitstream,
 		bitstream_length);
 
-	comedi_udelay(caldac_8800_comedi_udelay);
+	udelay(caldac_8800_udelay);
 	outw(cal_enable_bits(dev) | SELECT_8800_BIT,
 		devpriv->control_status + CALIBRATION_REG);
-	comedi_udelay(caldac_8800_comedi_udelay);
+	udelay(caldac_8800_udelay);
 	outw(cal_enable_bits(dev), devpriv->control_status + CALIBRATION_REG);
 
 	return 1;
@@ -1745,16 +1745,16 @@ static int trimpot_7376_write(struct comedi_device *dev, uint8_t value)
 	static const int bitstream_length = 7;
 	unsigned int bitstream = value & 0x7f;
 	unsigned int register_bits;
-	static const int ad7376_comedi_udelay = 1;
+	static const int ad7376_udelay = 1;
 
 	register_bits = cal_enable_bits(dev) | SELECT_TRIMPOT_BIT;
-	comedi_udelay(ad7376_comedi_udelay);
+	udelay(ad7376_udelay);
 	outw(register_bits, devpriv->control_status + CALIBRATION_REG);
 
 	write_calibration_bitstream(dev, register_bits, bitstream,
 		bitstream_length);
 
-	comedi_udelay(ad7376_comedi_udelay);
+	udelay(ad7376_udelay);
 	outw(cal_enable_bits(dev), devpriv->control_status + CALIBRATION_REG);
 
 	return 0;
@@ -1769,16 +1769,16 @@ static int trimpot_8402_write(struct comedi_device *dev, unsigned int channel,
 	static const int bitstream_length = 10;
 	unsigned int bitstream = ((channel & 0x3) << 8) | (value & 0xff);
 	unsigned int register_bits;
-	static const int ad8402_comedi_udelay = 1;
+	static const int ad8402_udelay = 1;
 
 	register_bits = cal_enable_bits(dev) | SELECT_TRIMPOT_BIT;
-	comedi_udelay(ad8402_comedi_udelay);
+	udelay(ad8402_udelay);
 	outw(register_bits, devpriv->control_status + CALIBRATION_REG);
 
 	write_calibration_bitstream(dev, register_bits, bitstream,
 		bitstream_length);
 
-	comedi_udelay(ad8402_comedi_udelay);
+	udelay(ad8402_udelay);
 	outw(cal_enable_bits(dev), devpriv->control_status + CALIBRATION_REG);
 
 	return 0;
@@ -1794,7 +1794,7 @@ static int wait_for_nvram_ready(unsigned long s5933_base_addr)
 					AMCC_OP_REG_MCSR_NVCMD) & MCSR_NV_BUSY)
 			== 0)
 			return 0;
-		comedi_udelay(1);
+		udelay(1);
 	}
 	return -1;
 }
diff --git a/drivers/staging/comedi/drivers/cb_pcidas64.c b/drivers/staging/comedi/drivers/cb_pcidas64.c
index caa8b568871d..210b462868b7 100644
--- a/drivers/staging/comedi/drivers/cb_pcidas64.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas64.c
@@ -98,7 +98,7 @@ TODO:
 /* #define PCIDAS64_DEBUG         enable debugging code */
 
 #ifdef PCIDAS64_DEBUG
-#define DEBUG_PRINT(format, args...)  rt_printk(format , ## args)
+#define DEBUG_PRINT(format, args...)  printk(format , ## args)
 #else
 #define DEBUG_PRINT(format, args...)
 #endif
@@ -1535,7 +1535,7 @@ static void init_stc_registers(struct comedi_device *dev)
 	uint16_t bits;
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 
 	/*  bit should be set for 6025, although docs say boards with <= 16 chans should be cleared XXX */
 	if (1)
@@ -1556,7 +1556,7 @@ static void init_stc_registers(struct comedi_device *dev)
 	writew(0, priv(dev)->main_iobase + DAQ_SYNC_REG);
 	writew(0, priv(dev)->main_iobase + CALIBRATION_REG);
 
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	/*  set fifos to maximum size */
 	priv(dev)->fifo_size_bits |= DAC_FIFO_BITS;
@@ -1794,7 +1794,7 @@ static int attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	init_plx9080(dev);
 	init_stc_registers(dev);
 	/*  get irq */
-	if (comedi_request_irq(pcidev->irq, handle_interrupt, IRQF_SHARED,
+	if (request_irq(pcidev->irq, handle_interrupt, IRQF_SHARED,
 			"cb_pcidas64", dev)) {
 		printk(" unable to allocate irq %u\n", pcidev->irq);
 		return -EINVAL;
@@ -1825,7 +1825,7 @@ static int detach(struct comedi_device *dev)
 	printk("comedi%d: cb_pcidas: remove\n", dev->minor);
 
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	if (priv(dev)) {
 		if (priv(dev)->hw_dev) {
 			if (priv(dev)->plx9080_iobase) {
@@ -1895,14 +1895,14 @@ static int ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 	/*  4020 generates dac done interrupts even though they are disabled */
 	disable_ai_pacing(dev);
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	if (insn->chanspec & CR_ALT_FILTER)
 		priv(dev)->adc_control1_bits |= ADC_DITHER_BIT;
 	else
 		priv(dev)->adc_control1_bits &= ~ADC_DITHER_BIT;
 	writew(priv(dev)->adc_control1_bits,
 		priv(dev)->main_iobase + ADC_CONTROL1_REG);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	if (board(dev)->layout != LAYOUT_4020) {
 		/*  use internal queue */
@@ -1995,12 +1995,12 @@ static int ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 				if (pipe_full_bits(bits))
 					break;
 			}
-			comedi_udelay(1);
+			udelay(1);
 		}
 		DEBUG_PRINT(" looped %i times waiting for data\n", i);
 		if (i == timeout) {
 			comedi_error(dev, " analog input read insn timed out");
-			rt_printk(" status 0x%x\n", bits);
+			printk(" status 0x%x\n", bits);
 			return -ETIME;
 		}
 		if (board(dev)->layout == LAYOUT_4020)
@@ -2357,11 +2357,11 @@ static void disable_ai_pacing(struct comedi_device *dev)
 
 	disable_ai_interrupts(dev);
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	priv(dev)->adc_control1_bits &= ~ADC_SW_GATE_BIT;
 	writew(priv(dev)->adc_control1_bits,
 		priv(dev)->main_iobase + ADC_CONTROL1_REG);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	/* disable pacing, triggering, etc */
 	writew(ADC_DMA_DISABLE_BIT | ADC_SOFT_GATE_BITS | ADC_GATE_LEVEL_BIT,
@@ -2372,14 +2372,14 @@ static void disable_ai_interrupts(struct comedi_device *dev)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	priv(dev)->intr_enable_bits &=
 		~EN_ADC_INTR_SRC_BIT & ~EN_ADC_DONE_INTR_BIT &
 		~EN_ADC_ACTIVE_INTR_BIT & ~EN_ADC_STOP_INTR_BIT &
 		~EN_ADC_OVERRUN_BIT & ~ADC_INTR_SRC_MASK;
 	writew(priv(dev)->intr_enable_bits,
 		priv(dev)->main_iobase + INTR_ENABLE_REG);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	DEBUG_PRINT("intr enable bits 0x%x\n", priv(dev)->intr_enable_bits);
 }
@@ -2397,12 +2397,12 @@ static void enable_ai_interrupts(struct comedi_device *dev, const struct comedi_
 		if (board(dev)->layout != LAYOUT_4020)
 			bits |= ADC_INTR_EOSCAN_BITS | EN_ADC_INTR_SRC_BIT;
 	}
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	priv(dev)->intr_enable_bits |= bits;
 	writew(priv(dev)->intr_enable_bits,
 		priv(dev)->main_iobase + INTR_ENABLE_REG);
 	DEBUG_PRINT("intr enable bits 0x%x\n", priv(dev)->intr_enable_bits);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 }
 
 static uint32_t ai_convert_counter_6xxx(const struct comedi_device *dev,
@@ -2488,7 +2488,7 @@ static inline void dma_start_sync(struct comedi_device *dev, unsigned int channe
 	unsigned long flags;
 
 	/*  spinlock for plx dma control/status reg */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	if (channel)
 		writeb(PLX_DMA_EN_BIT | PLX_DMA_START_BIT |
 			PLX_CLEAR_DMA_INTR_BIT,
@@ -2497,7 +2497,7 @@ static inline void dma_start_sync(struct comedi_device *dev, unsigned int channe
 		writeb(PLX_DMA_EN_BIT | PLX_DMA_START_BIT |
 			PLX_CLEAR_DMA_INTR_BIT,
 			priv(dev)->plx9080_iobase + PLX_DMA0_CS_REG);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 }
 
 static void set_ai_pacing(struct comedi_device *dev, struct comedi_cmd *cmd)
@@ -2701,7 +2701,7 @@ static int ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 
 	enable_ai_interrupts(dev, cmd);
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	/* set mode, allow conversions through software gate */
 	priv(dev)->adc_control1_bits |= ADC_SW_GATE_BIT;
 	priv(dev)->adc_control1_bits &= ~ADC_DITHER_BIT;
@@ -2728,7 +2728,7 @@ static int ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	writew(priv(dev)->adc_control1_bits,
 		priv(dev)->main_iobase + ADC_CONTROL1_REG);
 	DEBUG_PRINT("control1 bits 0x%x\n", priv(dev)->adc_control1_bits);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	/*  clear adc buffer */
 	writew(0, priv(dev)->main_iobase + ADC_BUFFER_CLEAR_REG);
@@ -2762,7 +2762,7 @@ static int ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		writew(bits, priv(dev)->main_iobase + DAQ_ATRIG_LOW_4020_REG);
 	}
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 
 	/* enable pacing, triggering, etc */
 	bits = ADC_ENABLE_BIT | ADC_SOFT_GATE_BITS | ADC_GATE_LEVEL_BIT;
@@ -2782,7 +2782,7 @@ static int ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 
 	priv(dev)->ai_cmd_running = 1;
 
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	/*  start aquisition */
 	if (cmd->start_src == TRIG_NOW) {
@@ -2842,7 +2842,7 @@ static void pio_drain_ai_fifo_16(struct comedi_device *dev)
 		}
 
 		if (num_samples < 0) {
-			rt_printk(" cb_pcidas64: bug! num_samples < 0\n");
+			printk(" cb_pcidas64: bug! num_samples < 0\n");
 			break;
 		}
 
@@ -2964,7 +2964,7 @@ void handle_ai_interrupt(struct comedi_device *dev, unsigned short status,
 		async->events |= COMEDI_CB_EOA | COMEDI_CB_ERROR;
 	}
 	/*  spin lock makes sure noone else changes plx dma control reg */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	dma1_status = readb(priv(dev)->plx9080_iobase + PLX_DMA1_CS_REG);
 	if (plx_status & ICS_DMA1_A) {	/*  dma chan 1 interrupt */
 		writeb((dma1_status & PLX_DMA_EN_BIT) | PLX_CLEAR_DMA_INTR_BIT,
@@ -2976,7 +2976,7 @@ void handle_ai_interrupt(struct comedi_device *dev, unsigned short status,
 		}
 		DEBUG_PRINT(" cleared dma ch1 interrupt\n");
 	}
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	if (status & ADC_DONE_BIT)
 		DEBUG_PRINT("adc done interrupt\n");
@@ -2987,12 +2987,12 @@ void handle_ai_interrupt(struct comedi_device *dev, unsigned short status,
 			(status & ADC_INTR_PENDING_BIT) &&
 			(board(dev)->layout != LAYOUT_4020))) {
 		DEBUG_PRINT("pio fifo drain\n");
-		comedi_spin_lock_irqsave(&dev->spinlock, flags);
+		spin_lock_irqsave(&dev->spinlock, flags);
 		if (priv(dev)->ai_cmd_running) {
-			comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+			spin_unlock_irqrestore(&dev->spinlock, flags);
 			pio_drain_ai_fifo(dev);
 		} else
-			comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+			spin_unlock_irqrestore(&dev->spinlock, flags);
 	}
 	/*  if we are have all the data, then quit */
 	if ((cmd->stop_src == TRIG_COUNT && priv(dev)->ai_count <= 0) ||
@@ -3087,7 +3087,7 @@ static void handle_ao_interrupt(struct comedi_device *dev, unsigned short status
 	cmd = &async->cmd;
 
 	/*  spin lock makes sure noone else changes plx dma control reg */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	dma0_status = readb(priv(dev)->plx9080_iobase + PLX_DMA0_CS_REG);
 	if (plx_status & ICS_DMA0_A) {	/*  dma chan 0 interrupt */
 		if ((dma0_status & PLX_DMA_EN_BIT)
@@ -3097,7 +3097,7 @@ static void handle_ao_interrupt(struct comedi_device *dev, unsigned short status
 		else
 			writeb(PLX_CLEAR_DMA_INTR_BIT,
 				priv(dev)->plx9080_iobase + PLX_DMA0_CS_REG);
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 		DEBUG_PRINT("dma0 status 0x%x\n", dma0_status);
 		if (dma0_status & PLX_DMA_EN_BIT) {
 			load_ao_dma(dev, cmd);
@@ -3107,7 +3107,7 @@ static void handle_ao_interrupt(struct comedi_device *dev, unsigned short status
 		}
 		DEBUG_PRINT(" cleared dma ch0 interrupt\n");
 	} else
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	if ((status & DAC_DONE_BIT)) {
 		async->events |= COMEDI_CB_EOA;
@@ -3164,24 +3164,24 @@ void abort_dma(struct comedi_device *dev, unsigned int channel)
 	unsigned long flags;
 
 	/*  spinlock for plx dma control/status reg */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 
 	plx9080_abort_dma(priv(dev)->plx9080_iobase, channel);
 
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 }
 
 static int ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	if (priv(dev)->ai_cmd_running == 0) {
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 		return 0;
 	}
 	priv(dev)->ai_cmd_running = 0;
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	disable_ai_pacing(dev);
 
@@ -3722,12 +3722,12 @@ static void ad8402_write(struct comedi_device *dev, unsigned int channel,
 	static const int bitstream_length = 10;
 	unsigned int bit, register_bits;
 	unsigned int bitstream = ((channel & 0x3) << 8) | (value & 0xff);
-	static const int ad8402_comedi_udelay = 1;
+	static const int ad8402_udelay = 1;
 
 	priv(dev)->ad8402_state[channel] = value;
 
 	register_bits = SELECT_8402_64XX_BIT;
-	comedi_udelay(ad8402_comedi_udelay);
+	udelay(ad8402_udelay);
 	writew(register_bits, priv(dev)->main_iobase + CALIBRATION_REG);
 
 	for (bit = 1 << (bitstream_length - 1); bit; bit >>= 1) {
@@ -3735,14 +3735,14 @@ static void ad8402_write(struct comedi_device *dev, unsigned int channel,
 			register_bits |= SERIAL_DATA_IN_BIT;
 		else
 			register_bits &= ~SERIAL_DATA_IN_BIT;
-		comedi_udelay(ad8402_comedi_udelay);
+		udelay(ad8402_udelay);
 		writew(register_bits, priv(dev)->main_iobase + CALIBRATION_REG);
-		comedi_udelay(ad8402_comedi_udelay);
+		udelay(ad8402_udelay);
 		writew(register_bits | SERIAL_CLOCK_BIT,
 			priv(dev)->main_iobase + CALIBRATION_REG);
 	}
 
-	comedi_udelay(ad8402_comedi_udelay);
+	udelay(ad8402_udelay);
 	writew(0, priv(dev)->main_iobase + CALIBRATION_REG);
 }
 
@@ -3784,32 +3784,32 @@ static uint16_t read_eeprom(struct comedi_device *dev, uint8_t address)
 		priv(dev)->plx9080_iobase + PLX_CONTROL_REG;
 	uint16_t value;
 	static const int value_length = 16;
-	static const int eeprom_comedi_udelay = 1;
+	static const int eeprom_udelay = 1;
 
-	comedi_udelay(eeprom_comedi_udelay);
+	udelay(eeprom_udelay);
 	priv(dev)->plx_control_bits &= ~CTL_EE_CLK & ~CTL_EE_CS;
 	/*  make sure we don't send anything to the i2c bus on 4020 */
 	priv(dev)->plx_control_bits |= CTL_USERO;
 	writel(priv(dev)->plx_control_bits, plx_control_addr);
 	/*  activate serial eeprom */
-	comedi_udelay(eeprom_comedi_udelay);
+	udelay(eeprom_udelay);
 	priv(dev)->plx_control_bits |= CTL_EE_CS;
 	writel(priv(dev)->plx_control_bits, plx_control_addr);
 
 	/*  write read command and desired memory address */
 	for (bit = 1 << (bitstream_length - 1); bit; bit >>= 1) {
 		/*  set bit to be written */
-		comedi_udelay(eeprom_comedi_udelay);
+		udelay(eeprom_udelay);
 		if (bitstream & bit)
 			priv(dev)->plx_control_bits |= CTL_EE_W;
 		else
 			priv(dev)->plx_control_bits &= ~CTL_EE_W;
 		writel(priv(dev)->plx_control_bits, plx_control_addr);
 		/*  clock in bit */
-		comedi_udelay(eeprom_comedi_udelay);
+		udelay(eeprom_udelay);
 		priv(dev)->plx_control_bits |= CTL_EE_CLK;
 		writel(priv(dev)->plx_control_bits, plx_control_addr);
-		comedi_udelay(eeprom_comedi_udelay);
+		udelay(eeprom_udelay);
 		priv(dev)->plx_control_bits &= ~CTL_EE_CLK;
 		writel(priv(dev)->plx_control_bits, plx_control_addr);
 	}
@@ -3817,19 +3817,19 @@ static uint16_t read_eeprom(struct comedi_device *dev, uint8_t address)
 	value = 0;
 	for (bit = 1 << (value_length - 1); bit; bit >>= 1) {
 		/*  clock out bit */
-		comedi_udelay(eeprom_comedi_udelay);
+		udelay(eeprom_udelay);
 		priv(dev)->plx_control_bits |= CTL_EE_CLK;
 		writel(priv(dev)->plx_control_bits, plx_control_addr);
-		comedi_udelay(eeprom_comedi_udelay);
+		udelay(eeprom_udelay);
 		priv(dev)->plx_control_bits &= ~CTL_EE_CLK;
 		writel(priv(dev)->plx_control_bits, plx_control_addr);
-		comedi_udelay(eeprom_comedi_udelay);
+		udelay(eeprom_udelay);
 		if (readl(plx_control_addr) & CTL_EE_R)
 			value |= bit;
 	}
 
 	/*  deactivate eeprom serial input */
-	comedi_udelay(eeprom_comedi_udelay);
+	udelay(eeprom_udelay);
 	priv(dev)->plx_control_bits &= ~CTL_EE_CS;
 	writel(priv(dev)->plx_control_bits, plx_control_addr);
 
@@ -4018,17 +4018,17 @@ static int caldac_8800_write(struct comedi_device *dev, unsigned int address,
 		register_bits = 0;
 		if (bitstream & bit)
 			register_bits |= SERIAL_DATA_IN_BIT;
-		comedi_udelay(caldac_8800_udelay);
+		udelay(caldac_8800_udelay);
 		writew(register_bits, priv(dev)->main_iobase + CALIBRATION_REG);
 		register_bits |= SERIAL_CLOCK_BIT;
-		comedi_udelay(caldac_8800_udelay);
+		udelay(caldac_8800_udelay);
 		writew(register_bits, priv(dev)->main_iobase + CALIBRATION_REG);
 	}
-	comedi_udelay(caldac_8800_udelay);
+	udelay(caldac_8800_udelay);
 	writew(SELECT_8800_BIT, priv(dev)->main_iobase + CALIBRATION_REG);
-	comedi_udelay(caldac_8800_udelay);
+	udelay(caldac_8800_udelay);
 	writew(0, priv(dev)->main_iobase + CALIBRATION_REG);
-	comedi_udelay(caldac_8800_udelay);
+	udelay(caldac_8800_udelay);
 	return 0;
 }
 
@@ -4094,8 +4094,8 @@ static int caldac_i2c_write(struct comedi_device *dev, unsigned int caldac_chann
 }
 
 /* Their i2c requires a huge delay on setting clock or data high for some reason */
-static const int i2c_high_comedi_udelay = 1000;
-static const int i2c_low_comedi_udelay = 10;
+static const int i2c_high_udelay = 1000;
+static const int i2c_low_udelay = 10;
 
 /* set i2c data line high or low */
 static void i2c_set_sda(struct comedi_device *dev, int state)
@@ -4107,12 +4107,12 @@ static void i2c_set_sda(struct comedi_device *dev, int state)
 		/*  set data line high */
 		priv(dev)->plx_control_bits &= ~data_bit;
 		writel(priv(dev)->plx_control_bits, plx_control_addr);
-		comedi_udelay(i2c_high_comedi_udelay);
+		udelay(i2c_high_udelay);
 	} else			/*  set data line low */
 	{
 		priv(dev)->plx_control_bits |= data_bit;
 		writel(priv(dev)->plx_control_bits, plx_control_addr);
-		comedi_udelay(i2c_low_comedi_udelay);
+		udelay(i2c_low_udelay);
 	}
 }
 
@@ -4126,12 +4126,12 @@ static void i2c_set_scl(struct comedi_device *dev, int state)
 		/*  set clock line high */
 		priv(dev)->plx_control_bits &= ~clock_bit;
 		writel(priv(dev)->plx_control_bits, plx_control_addr);
-		comedi_udelay(i2c_high_comedi_udelay);
+		udelay(i2c_high_udelay);
 	} else			/*  set clock line low */
 	{
 		priv(dev)->plx_control_bits |= clock_bit;
 		writel(priv(dev)->plx_control_bits, plx_control_addr);
-		comedi_udelay(i2c_low_comedi_udelay);
+		udelay(i2c_low_udelay);
 	}
 }
 
diff --git a/drivers/staging/comedi/drivers/cb_pcimdas.c b/drivers/staging/comedi/drivers/cb_pcimdas.c
index 13f793b76c61..c69ec5d51e76 100644
--- a/drivers/staging/comedi/drivers/cb_pcimdas.c
+++ b/drivers/staging/comedi/drivers/cb_pcimdas.c
@@ -282,7 +282,7 @@ static int cb_pcimdas_attach(struct comedi_device *dev, struct comedi_devconfig
 
 /* Dont support IRQ yet */
 /*  get irq */
-/* if(comedi_request_irq(devpriv->pci_dev->irq, cb_pcimdas_interrupt, IRQF_SHARED, "cb_pcimdas", dev )) */
+/* if(request_irq(devpriv->pci_dev->irq, cb_pcimdas_interrupt, IRQF_SHARED, "cb_pcimdas", dev )) */
 /* { */
 /* printk(" unable to allocate irq %u\n", devpriv->pci_dev->irq); */
 /* return -EINVAL; */
@@ -355,7 +355,7 @@ static int cb_pcimdas_detach(struct comedi_device *dev)
 #endif
 	printk("comedi%d: cb_pcimdas: remove\n", dev->minor);
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	if (devpriv) {
 		if (devpriv->pci_dev) {
 			if (devpriv->BADR0) {
diff --git a/drivers/staging/comedi/drivers/comedi_fc.c b/drivers/staging/comedi/drivers/comedi_fc.c
index 9fa4cdc84d44..8ab8e733afb6 100644
--- a/drivers/staging/comedi/drivers/comedi_fc.c
+++ b/drivers/staging/comedi/drivers/comedi_fc.c
@@ -53,7 +53,7 @@ unsigned int cfc_write_array_to_buffer(struct comedi_subdevice *subd, void *data
 
 	retval = comedi_buf_write_alloc(async, num_bytes);
 	if (retval != num_bytes) {
-		rt_printk("comedi: buffer overrun\n");
+		printk("comedi: buffer overrun\n");
 		async->events |= COMEDI_CB_OVERFLOW;
 		return 0;
 	}
diff --git a/drivers/staging/comedi/drivers/comedi_parport.c b/drivers/staging/comedi/drivers/comedi_parport.c
index 3848fd475583..f42897de640e 100644
--- a/drivers/staging/comedi/drivers/comedi_parport.c
+++ b/drivers/staging/comedi/drivers/comedi_parport.c
@@ -310,8 +310,8 @@ static int parport_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	irq = it->options[1];
 	if (irq) {
 		printk(" irq=%u", irq);
-		ret = comedi_request_irq(irq, parport_interrupt, 0,
-			"comedi_parport", dev);
+		ret = request_irq(irq, parport_interrupt, 0, "comedi_parport",
+				  dev);
 		if (ret < 0) {
 			printk(" irq not available\n");
 			return -EINVAL;
@@ -385,7 +385,7 @@ static int parport_detach(struct comedi_device *dev)
 		release_region(dev->iobase, PARPORT_SIZE);
 
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	return 0;
 }
diff --git a/drivers/staging/comedi/drivers/comedi_rt_timer.c b/drivers/staging/comedi/drivers/comedi_rt_timer.c
index 3b21f4c85879..0453a983571c 100644
--- a/drivers/staging/comedi/drivers/comedi_rt_timer.c
+++ b/drivers/staging/comedi/drivers/comedi_rt_timer.c
@@ -204,7 +204,7 @@ inline static int check_scan_timing(struct comedi_device *dev,
 	timing_error = now - (devpriv->start + scan * devpriv->scan_period);
 	if (timing_error > devpriv->scan_period) {
 		comedi_error(dev, "timing error");
-		rt_printk("scan started %i ns late\n", timing_error * 838);
+		printk("scan started %i ns late\n", timing_error * 838);
 		return -1;
 	}
 
@@ -222,7 +222,7 @@ inline static int check_conversion_timing(struct comedi_device *dev,
 		now - (scan_start + conversion * devpriv->convert_period);
 	if (timing_error > devpriv->convert_period) {
 		comedi_error(dev, "timing error");
-		rt_printk("conversion started %i ns late\n",
+		printk("conversion started %i ns late\n",
 			timing_error * 838);
 		return -1;
 	}
diff --git a/drivers/staging/comedi/drivers/contec_pci_dio.c b/drivers/staging/comedi/drivers/contec_pci_dio.c
index f2ad24841296..6c58e9990323 100644
--- a/drivers/staging/comedi/drivers/contec_pci_dio.c
+++ b/drivers/staging/comedi/drivers/contec_pci_dio.c
@@ -205,7 +205,7 @@ static int contec_do_insn_bits(struct comedi_device *dev, struct comedi_subdevic
 	if (data[0]) {
 		s->state &= ~data[0];
 		s->state |= data[0] & data[1];
-		rt_printk("  out: %d on %lx\n", s->state,
+		printk("  out: %d on %lx\n", s->state,
 			dev->iobase + thisboard->out_offs);
 		outw(s->state, dev->iobase + thisboard->out_offs);
 	}
@@ -216,8 +216,8 @@ static int contec_di_insn_bits(struct comedi_device *dev, struct comedi_subdevic
 	struct comedi_insn *insn, unsigned int *data)
 {
 
-	rt_printk("contec_di_insn_bits called\n");
-	rt_printk(" data: %d %d\n", data[0], data[1]);
+	printk("contec_di_insn_bits called\n");
+	printk(" data: %d %d\n", data[0], data[1]);
 
 	if (insn->n != 2)
 		return -EINVAL;
diff --git a/drivers/staging/comedi/drivers/daqboard2000.c b/drivers/staging/comedi/drivers/daqboard2000.c
index bac642c55cd5..ff0ca2c51ce6 100644
--- a/drivers/staging/comedi/drivers/daqboard2000.c
+++ b/drivers/staging/comedi/drivers/daqboard2000.c
@@ -342,9 +342,9 @@ static void writeAcqScanListEntry(struct comedi_device *dev, u16 entry)
 {
 	struct daqboard2000_hw *fpga = devpriv->daq;
 
-/* comedi_udelay(4); */
+/* udelay(4); */
 	fpga->acqScanListFIFO = entry & 0x00ff;
-/* comedi_udelay(4); */
+/* udelay(4); */
 	fpga->acqScanListFIFO = (entry >> 8) & 0x00ff;
 }
 
@@ -425,14 +425,14 @@ static int daqboard2000_ai_insn_read(struct comedi_device *dev, struct comedi_su
 			if (fpga->acqControl & DAQBOARD2000_AcqConfigPipeFull) {
 				break;
 			}
-			/* comedi_udelay(2); */
+			/* udelay(2); */
 		}
 		fpga->acqControl = DAQBOARD2000_AdcPacerEnable;
 		for (timeout = 0; timeout < 20; timeout++) {
 			if (fpga->acqControl & DAQBOARD2000_AcqLogicScanning) {
 				break;
 			}
-			/* comedi_udelay(2); */
+			/* udelay(2); */
 		}
 		for (timeout = 0; timeout < 20; timeout++) {
 			if (fpga->
@@ -440,7 +440,7 @@ static int daqboard2000_ai_insn_read(struct comedi_device *dev, struct comedi_su
 				DAQBOARD2000_AcqResultsFIFOHasValidData) {
 				break;
 			}
-			/* comedi_udelay(2); */
+			/* udelay(2); */
 		}
 		data[i] = fpga->acqResultsFIFO;
 		fpga->acqControl = DAQBOARD2000_AdcPacerDisable;
@@ -476,18 +476,18 @@ static int daqboard2000_ao_insn_write(struct comedi_device *dev, struct comedi_s
 		 * OK, since it works OK without enabling the DAC's, let's keep
 		 * it as simple as possible...
 		 */
-		/* fpga->dacControl = (chan + 2) * 0x0010 | 0x0001; comedi_udelay(1000); */
+		/* fpga->dacControl = (chan + 2) * 0x0010 | 0x0001; udelay(1000); */
 		fpga->dacSetting[chan] = data[i];
 		for (timeout = 0; timeout < 20; timeout++) {
 			if ((fpga->dacControl & ((chan + 1) * 0x0010)) == 0) {
 				break;
 			}
-			/* comedi_udelay(2); */
+			/* udelay(2); */
 		}
 		devpriv->ao_readback[chan] = data[i];
 		/*
 		 * Since we never enabled the DAC's, we don't need to disable it...
-		 * fpga->dacControl = (chan + 2) * 0x0010 | 0x0000; comedi_udelay(1000);
+		 * fpga->dacControl = (chan + 2) * 0x0010 | 0x0000; udelay(1000);
 		 */
 	}
 
@@ -498,29 +498,29 @@ static void daqboard2000_resetLocalBus(struct comedi_device *dev)
 {
 	printk("daqboard2000_resetLocalBus\n");
 	writel(DAQBOARD2000_SECRLocalBusHi, devpriv->plx + 0x6c);
-	comedi_udelay(10000);
+	udelay(10000);
 	writel(DAQBOARD2000_SECRLocalBusLo, devpriv->plx + 0x6c);
-	comedi_udelay(10000);
+	udelay(10000);
 }
 
 static void daqboard2000_reloadPLX(struct comedi_device *dev)
 {
 	printk("daqboard2000_reloadPLX\n");
 	writel(DAQBOARD2000_SECRReloadLo, devpriv->plx + 0x6c);
-	comedi_udelay(10000);
+	udelay(10000);
 	writel(DAQBOARD2000_SECRReloadHi, devpriv->plx + 0x6c);
-	comedi_udelay(10000);
+	udelay(10000);
 	writel(DAQBOARD2000_SECRReloadLo, devpriv->plx + 0x6c);
-	comedi_udelay(10000);
+	udelay(10000);
 }
 
 static void daqboard2000_pulseProgPin(struct comedi_device *dev)
 {
 	printk("daqboard2000_pulseProgPin 1\n");
 	writel(DAQBOARD2000_SECRProgPinHi, devpriv->plx + 0x6c);
-	comedi_udelay(10000);
+	udelay(10000);
 	writel(DAQBOARD2000_SECRProgPinLo, devpriv->plx + 0x6c);
-	comedi_udelay(10000);	/* Not in the original code, but I like symmetry... */
+	udelay(10000);	/* Not in the original code, but I like symmetry... */
 }
 
 static int daqboard2000_pollCPLD(struct comedi_device *dev, int mask)
@@ -536,9 +536,9 @@ static int daqboard2000_pollCPLD(struct comedi_device *dev, int mask)
 			result = 1;
 			break;
 		}
-		comedi_udelay(100);
+		udelay(100);
 	}
-	comedi_udelay(5);
+	udelay(5);
 	return result;
 }
 
@@ -546,7 +546,7 @@ static int daqboard2000_writeCPLD(struct comedi_device *dev, int data)
 {
 	int result = 0;
 
-	comedi_udelay(10);
+	udelay(10);
 	writew(data, devpriv->daq + 0x1000);
 	if ((readw(devpriv->daq + 0x1000) & DAQBOARD2000_CPLD_INIT) ==
 		DAQBOARD2000_CPLD_INIT) {
@@ -623,17 +623,17 @@ static void daqboard2000_adcDisarm(struct comedi_device *dev)
 	struct daqboard2000_hw *fpga = devpriv->daq;
 
 	/* Disable hardware triggers */
-	comedi_udelay(2);
+	udelay(2);
 	fpga->trigControl = DAQBOARD2000_TrigAnalog | DAQBOARD2000_TrigDisable;
-	comedi_udelay(2);
+	udelay(2);
 	fpga->trigControl = DAQBOARD2000_TrigTTL | DAQBOARD2000_TrigDisable;
 
 	/* Stop the scan list FIFO from loading the configuration pipe */
-	comedi_udelay(2);
+	udelay(2);
 	fpga->acqControl = DAQBOARD2000_SeqStopScanList;
 
 	/* Stop the pacer clock */
-	comedi_udelay(2);
+	udelay(2);
 	fpga->acqControl = DAQBOARD2000_AdcPacerDisable;
 
 	/* Stop the input dma (abort channel 1) */
@@ -651,7 +651,7 @@ static void daqboard2000_activateReferenceDacs(struct comedi_device *dev)
 		if ((fpga->dacControl & DAQBOARD2000_RefBusy) == 0) {
 			break;
 		}
-		comedi_udelay(2);
+		udelay(2);
 	}
 /*  printk("DAQBOARD2000_PosRefDacSelect %d\n", timeout);*/
 
@@ -661,7 +661,7 @@ static void daqboard2000_activateReferenceDacs(struct comedi_device *dev)
 		if ((fpga->dacControl & DAQBOARD2000_RefBusy) == 0) {
 			break;
 		}
-		comedi_udelay(2);
+		udelay(2);
 	}
 /*  printk("DAQBOARD2000_NegRefDacSelect %d\n", timeout);*/
 }
diff --git a/drivers/staging/comedi/drivers/das08.c b/drivers/staging/comedi/drivers/das08.c
index 2fa883edfef0..c20cd8feb13d 100644
--- a/drivers/staging/comedi/drivers/das08.c
+++ b/drivers/staging/comedi/drivers/das08.c
@@ -545,7 +545,7 @@ static int das08_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 		/* clear over-range bits for 16-bit boards */
 		if (thisboard->ai_nbits == 16)
 			if (inb(dev->iobase + DAS08_MSB) & 0x80)
-				rt_printk("das08: over-range\n");
+				printk("das08: over-range\n");
 
 		/* trigger conversion */
 		outb_p(0, dev->iobase + DAS08_TRIG_12BIT);
@@ -555,7 +555,7 @@ static int das08_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 				break;
 		}
 		if (i == TIMEOUT) {
-			rt_printk("das08: timeout\n");
+			printk("das08: timeout\n");
 			return -ETIME;
 		}
 		msb = inb(dev->iobase + DAS08_MSB);
diff --git a/drivers/staging/comedi/drivers/das16.c b/drivers/staging/comedi/drivers/das16.c
index 6ca888429e6a..c0fbb8516730 100644
--- a/drivers/staging/comedi/drivers/das16.c
+++ b/drivers/staging/comedi/drivers/das16.c
@@ -90,7 +90,7 @@ Computer boards manuals also available from their website www.measurementcomputi
 /* #define DEBUG */
 
 #ifdef DEBUG
-#define DEBUG_PRINT(format, args...) rt_printk("das16: " format, ## args)
+#define DEBUG_PRINT(format, args...) printk("das16: " format, ## args)
 #else
 #define DEBUG_PRINT(format, args...)
 #endif
@@ -998,7 +998,7 @@ static int das16_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	/* disable interrupts, dma and pacer clocked conversions */
 	devpriv->control_state &= ~DAS16_INTE & ~PACING_MASK & ~DMA_ENABLE;
 	outb(devpriv->control_state, dev->iobase + DAS16_CONTROL);
@@ -1016,7 +1016,7 @@ static int das16_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 		outb(0, dev->iobase + DAS1600_BURST);
 	}
 
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	return 0;
 }
@@ -1062,7 +1062,7 @@ static int das16_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 				break;
 		}
 		if (i == DAS16_TIMEOUT) {
-			rt_printk("das16: timeout\n");
+			printk("das16: timeout\n");
 			return -ETIME;
 		}
 		msb = inb(dev->iobase + DAS16_AI_MSB);
@@ -1180,7 +1180,7 @@ static int disable_dma_on_even(struct comedi_device *dev)
 		enable_dma(devpriv->dma_chan);
 		for (j = 0; j < enable_timeout; ++j) {
 			int new_residue;
-			comedi_udelay(2);
+			udelay(2);
 			new_residue = get_dma_residue(devpriv->dma_chan);
 			if (new_residue != residue)
 				break;
@@ -1217,9 +1217,9 @@ static void das16_interrupt(struct comedi_device *dev)
 		return;
 	}
 
-	comedi_spin_lock_irqsave(&dev->spinlock, spin_flags);
+	spin_lock_irqsave(&dev->spinlock, spin_flags);
 	if ((devpriv->control_state & DMA_ENABLE) == 0) {
-		comedi_spin_unlock_irqrestore(&dev->spinlock, spin_flags);
+		spin_unlock_irqrestore(&dev->spinlock, spin_flags);
 		DEBUG_PRINT("interrupt while dma disabled?\n");
 		return;
 	}
@@ -1263,7 +1263,7 @@ static void das16_interrupt(struct comedi_device *dev)
 	}
 	release_dma_lock(dma_flags);
 
-	comedi_spin_unlock_irqrestore(&dev->spinlock, spin_flags);
+	spin_unlock_irqrestore(&dev->spinlock, spin_flags);
 
 	cfc_write_array_to_buffer(s,
 		devpriv->dma_buffer[buffer_index], num_bytes);
@@ -1449,8 +1449,7 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	/* now for the irq */
 	if (irq > 1 && irq < 8) {
-		ret = comedi_request_irq(irq, das16_dma_interrupt, 0,
-					 "das16", dev);
+		ret = request_irq(irq, das16_dma_interrupt, 0, "das16", dev);
 
 		if (ret < 0)
 			return ret;
@@ -1658,7 +1657,7 @@ static int das16_detach(struct comedi_device *dev)
 	}
 
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	if (dev->iobase) {
 		if (thisboard->size < 0x400) {
diff --git a/drivers/staging/comedi/drivers/das16m1.c b/drivers/staging/comedi/drivers/das16m1.c
index e22f546e8162..a0e405fc4c67 100644
--- a/drivers/staging/comedi/drivers/das16m1.c
+++ b/drivers/staging/comedi/drivers/das16m1.c
@@ -466,10 +466,10 @@ static int das16m1_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 	unsigned int status;
 
 	/*  prevent race with interrupt handler */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	status = inb(dev->iobase + DAS16M1_CS);
 	das16m1_handler(dev, status);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	return s->async->buf_write_count - s->async->buf_read_count;
 }
@@ -669,8 +669,8 @@ static int das16m1_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	irq = it->options[1];
 	/*  make sure it is valid */
 	if (das16m1_irq_bits(irq) >= 0) {
-		ret = comedi_request_irq(irq, das16m1_interrupt, 0,
-			driver_das16m1.driver_name, dev);
+		ret = request_irq(irq, das16m1_interrupt, 0,
+				  driver_das16m1.driver_name, dev);
 		if (ret < 0) {
 			printk(", irq unavailable\n");
 			return ret;
@@ -753,7 +753,7 @@ static int das16m1_detach(struct comedi_device *dev)
 		subdev_8255_cleanup(dev, dev->subdevices + 3);
 
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	if (dev->iobase) {
 		release_region(dev->iobase, DAS16M1_SIZE);
diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c
index 7fbcfb107e6d..5d67d2359add 100644
--- a/drivers/staging/comedi/drivers/das1800.c
+++ b/drivers/staging/comedi/drivers/das1800.c
@@ -651,7 +651,7 @@ static int das1800_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	/* grab our IRQ */
 	if (irq) {
-		if (comedi_request_irq(irq, das1800_interrupt, 0,
+		if (request_irq(irq, das1800_interrupt, 0,
 				driver_das1800.driver_name, dev)) {
 			printk(" unable to allocate irq %u\n", irq);
 			return -EINVAL;
@@ -771,7 +771,7 @@ static int das1800_detach(struct comedi_device *dev)
 	if (dev->iobase)
 		release_region(dev->iobase, DAS1800_SIZE);
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	if (dev->private) {
 		if (devpriv->iobase2)
 			release_region(devpriv->iobase2, DAS1800_SIZE);
@@ -872,9 +872,9 @@ static int das1800_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s
 	unsigned long flags;
 
 	/*  prevent race with interrupt handler */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	das1800_ai_handler(dev);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	return s->async->buf_write_count - s->async->buf_read_count;
 }
@@ -1471,7 +1471,7 @@ static void program_chanlist(struct comedi_device *dev, struct comedi_cmd cmd)
 
 	n = cmd.chanlist_len;
 	/*  spinlock protects indirect addressing */
-	comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+	spin_lock_irqsave(&dev->spinlock, irq_flags);
 	outb(QRAM, dev->iobase + DAS1800_SELECT);	/* select QRAM for baseAddress + 0x0 */
 	outb(n - 1, dev->iobase + DAS1800_QRAM_ADDRESS);	/*set QRAM address start */
 	/* make channel / gain list */
@@ -1483,7 +1483,7 @@ static void program_chanlist(struct comedi_device *dev, struct comedi_cmd cmd)
 		outw(chan_range, dev->iobase + DAS1800_QRAM);
 	}
 	outb(n - 1, dev->iobase + DAS1800_QRAM_ADDRESS);	/*finish write to QRAM */
-	comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 
 	return;
 }
@@ -1582,7 +1582,7 @@ static int das1800_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *
 	/* mask of unipolar/bipolar bit from range */
 	range = CR_RANGE(insn->chanspec) & 0x3;
 	chan_range = chan | (range << 8);
-	comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+	spin_lock_irqsave(&dev->spinlock, irq_flags);
 	outb(QRAM, dev->iobase + DAS1800_SELECT);	/* select QRAM for baseAddress + 0x0 */
 	outb(0x0, dev->iobase + DAS1800_QRAM_ADDRESS);	/* set QRAM address start */
 	outw(chan_range, dev->iobase + DAS1800_QRAM);
@@ -1606,7 +1606,7 @@ static int das1800_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *
 			dpnt += 1 << (thisboard->resolution - 1);
 		data[n] = dpnt;
 	}
-	comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 
 	return n;
 }
@@ -1627,7 +1627,7 @@ static int das1800_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *
 	if (chan == update_chan)
 		devpriv->ao_update_bits = output;
 	/*  write to channel */
-	comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+	spin_lock_irqsave(&dev->spinlock, irq_flags);
 	outb(DAC(chan), dev->iobase + DAS1800_SELECT);	/* select dac channel for baseAddress + 0x0 */
 	outw(output, dev->iobase + DAS1800_DAC);
 	/*  now we need to write to 'update' channel to update all dac channels */
@@ -1635,7 +1635,7 @@ static int das1800_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *
 		outb(DAC(update_chan), dev->iobase + DAS1800_SELECT);	/* select 'update' channel for baseAddress + 0x0 */
 		outw(devpriv->ao_update_bits, dev->iobase + DAS1800_DAC);
 	}
-	comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 
 	return 1;
 }
diff --git a/drivers/staging/comedi/drivers/das6402.c b/drivers/staging/comedi/drivers/das6402.c
index 950f07a56f4e..37611ef80f5f 100644
--- a/drivers/staging/comedi/drivers/das6402.c
+++ b/drivers/staging/comedi/drivers/das6402.c
@@ -292,7 +292,7 @@ static int board_init(struct comedi_device *dev)
 static int das6402_detach(struct comedi_device *dev)
 {
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	if (dev->iobase)
 		release_region(dev->iobase, DAS6402_SIZE);
 
@@ -324,7 +324,7 @@ static int das6402_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	irq = it->options[0];
 	printk(" ( irq = %u )", irq);
-	ret = comedi_request_irq(irq, intr_handler, 0, "das6402", dev);
+	ret = request_irq(irq, intr_handler, 0, "das6402", dev);
 	if (ret < 0) {
 		printk("irq conflict\n");
 		return ret;
diff --git a/drivers/staging/comedi/drivers/das800.c b/drivers/staging/comedi/drivers/das800.c
index 6ee9648e5e18..ef64a20d836b 100644
--- a/drivers/staging/comedi/drivers/das800.c
+++ b/drivers/staging/comedi/drivers/das800.c
@@ -279,10 +279,10 @@ static int das800_probe(struct comedi_device *dev)
 	int board;
 
 	/*  'comedi spin lock irqsave' disables even rt interrupts, we use them to protect indirect addressing */
-	comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+	spin_lock_irqsave(&dev->spinlock, irq_flags);
 	outb(ID, dev->iobase + DAS800_GAIN);	/* select base address + 7 to be ID register */
 	id_bits = inb(dev->iobase + DAS800_ID) & 0x3;	/* get id bits */
-	comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 
 	board = thisboard - das800_boards;
 
@@ -370,12 +370,12 @@ static irqreturn_t das800_interrupt(int irq, void *d)
 	async = s->async;
 
 	/*  if hardware conversions are not enabled, then quit */
-	comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+	spin_lock_irqsave(&dev->spinlock, irq_flags);
 	outb(CONTROL1, dev->iobase + DAS800_GAIN);	/* select base address + 7 to be STATUS2 register */
 	status = inb(dev->iobase + DAS800_STATUS2) & STATUS2_HCEN;
 	/* don't release spinlock yet since we want to make sure noone else disables hardware conversions */
 	if (status == 0) {
-		comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+		spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 		return IRQ_HANDLED;
 	}
 
@@ -415,7 +415,7 @@ static irqreturn_t das800_interrupt(int irq, void *d)
 		fifo_overflow = inb(dev->iobase + DAS800_GAIN) & CIO_FFOV;
 	}
 	if (fifo_overflow) {
-		comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+		spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 		comedi_error(dev, "DAS800 FIFO overflow");
 		das800_cancel(dev, dev->subdevices + 0);
 		async->events |= COMEDI_CB_ERROR | COMEDI_CB_EOA;
@@ -429,10 +429,10 @@ static irqreturn_t das800_interrupt(int irq, void *d)
 		outb(CONTROL1, dev->iobase + DAS800_GAIN);	/* select dev->iobase + 2 to be control register 1 */
 		outb(CONTROL1_INTE | devpriv->do_bits,
 			dev->iobase + DAS800_CONTROL1);
-		comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+		spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 		/* otherwise, stop taking data */
 	} else {
-		comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+		spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 		disable_das800(dev);	/* diable hardware triggered conversions */
 		async->events |= COMEDI_CB_EOA;
 	}
@@ -484,7 +484,7 @@ static int das800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		return -EINVAL;
 	}
 	if (irq) {
-		if (comedi_request_irq(irq, das800_interrupt, 0, "das800", dev)) {
+		if (request_irq(irq, das800_interrupt, 0, "das800", dev)) {
 			printk("unable to allocate irq %u\n", irq);
 			return -EINVAL;
 		}
@@ -531,10 +531,10 @@ static int das800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	disable_das800(dev);
 
 	/* initialize digital out channels */
-	comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+	spin_lock_irqsave(&dev->spinlock, irq_flags);
 	outb(CONTROL1, dev->iobase + DAS800_GAIN);	/* select dev->iobase + 2 to be control register 1 */
 	outb(CONTROL1_INTE | devpriv->do_bits, dev->iobase + DAS800_CONTROL1);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 
 	return 0;
 };
@@ -547,7 +547,7 @@ static int das800_detach(struct comedi_device *dev)
 	if (dev->iobase)
 		release_region(dev->iobase, DAS800_SIZE);
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	return 0;
 };
 
@@ -563,7 +563,7 @@ static int das800_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 static void enable_das800(struct comedi_device *dev)
 {
 	unsigned long irq_flags;
-	comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+	spin_lock_irqsave(&dev->spinlock, irq_flags);
 	/*  enable fifo-half full interrupts for cio-das802/16 */
 	if (thisboard->resolution == 16)
 		outb(CIO_ENHF, dev->iobase + DAS800_GAIN);
@@ -571,17 +571,17 @@ static void enable_das800(struct comedi_device *dev)
 	outb(CONV_HCEN, dev->iobase + DAS800_CONV_CONTROL);	/* enable hardware triggering */
 	outb(CONTROL1, dev->iobase + DAS800_GAIN);	/* select dev->iobase + 2 to be control register 1 */
 	outb(CONTROL1_INTE | devpriv->do_bits, dev->iobase + DAS800_CONTROL1);	/* enable card's interrupt */
-	comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 }
 
 /* disable_das800 stops hardware triggered conversions */
 static void disable_das800(struct comedi_device *dev)
 {
 	unsigned long irq_flags;
-	comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+	spin_lock_irqsave(&dev->spinlock, irq_flags);
 	outb(CONV_CONTROL, dev->iobase + DAS800_GAIN);	/* select dev->iobase + 2 to be conversion control register */
 	outb(0x0, dev->iobase + DAS800_CONV_CONTROL);	/* disable hardware triggering of conversions */
-	comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 }
 
 static int das800_ai_do_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
@@ -729,10 +729,10 @@ static int das800_ai_do_cmd(struct comedi_device *dev, struct comedi_subdevice *
 	endChan = (startChan + async->cmd.chanlist_len - 1) % 8;
 	scan = (endChan << 3) | startChan;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+	spin_lock_irqsave(&dev->spinlock, irq_flags);
 	outb(SCAN_LIMITS, dev->iobase + DAS800_GAIN);	/* select base address + 2 to be scan limits register */
 	outb(scan, dev->iobase + DAS800_SCAN_LIMITS);	/* set scan limits */
-	comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 
 	/* set gain */
 	gain = CR_RANGE(async->cmd.chanlist[0]);
@@ -779,10 +779,10 @@ static int das800_ai_do_cmd(struct comedi_device *dev, struct comedi_subdevice *
 		break;
 	}
 
-	comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+	spin_lock_irqsave(&dev->spinlock, irq_flags);
 	outb(CONV_CONTROL, dev->iobase + DAS800_GAIN);	/* select dev->iobase + 2 to be conversion control register */
 	outb(conv_bits, dev->iobase + DAS800_CONV_CONTROL);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 	async->events = 0;
 	enable_das800(dev);
 	return 0;
@@ -803,10 +803,10 @@ static int das800_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s
 	/* set multiplexer */
 	chan = CR_CHAN(insn->chanspec);
 
-	comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+	spin_lock_irqsave(&dev->spinlock, irq_flags);
 	outb(CONTROL1, dev->iobase + DAS800_GAIN);	/* select dev->iobase + 2 to be control register 1 */
 	outb(chan | devpriv->do_bits, dev->iobase + DAS800_CONTROL1);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 
 	/* set gain / range */
 	range = CR_RANGE(insn->chanspec);
@@ -815,7 +815,7 @@ static int das800_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s
 	range &= 0xf;
 	outb(range, dev->iobase + DAS800_GAIN);
 
-	comedi_udelay(5);
+	udelay(5);
 
 	for (n = 0; n < insn->n; n++) {
 		/* trigger conversion */
@@ -868,10 +868,10 @@ static int das800_do_wbits(struct comedi_device *dev, struct comedi_subdevice *s
 	wbits |= data[0] & data[1];
 	devpriv->do_bits = wbits << 4;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+	spin_lock_irqsave(&dev->spinlock, irq_flags);
 	outb(CONTROL1, dev->iobase + DAS800_GAIN);	/* select dev->iobase + 2 to be control register 1 */
 	outb(devpriv->do_bits | CONTROL1_INTE, dev->iobase + DAS800_CONTROL1);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 
 	data[1] = wbits;
 
diff --git a/drivers/staging/comedi/drivers/dmm32at.c b/drivers/staging/comedi/drivers/dmm32at.c
index 47b3ebc34a68..5a53c61ddbdf 100644
--- a/drivers/staging/comedi/drivers/dmm32at.c
+++ b/drivers/staging/comedi/drivers/dmm32at.c
@@ -380,8 +380,7 @@ static int dmm32at_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	/* board is there, register interrupt */
 	if (irq) {
-		ret = comedi_request_irq(irq, dmm32at_isr, 0, thisboard->name,
-			dev);
+		ret = request_irq(irq, dmm32at_isr, 0, thisboard->name, dev);
 		if (ret < 0) {
 			printk("irq conflict\n");
 			return ret;
@@ -485,7 +484,7 @@ static int dmm32at_detach(struct comedi_device *dev)
 {
 	printk("comedi%d: dmm32at: remove\n", dev->minor);
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	if (dev->iobase)
 		release_region(dev->iobase, DMM32AT_MEMSIZE);
 
diff --git a/drivers/staging/comedi/drivers/dt2801.c b/drivers/staging/comedi/drivers/dt2801.c
index 9b100405b8b7..25a9b213b6f1 100644
--- a/drivers/staging/comedi/drivers/dt2801.c
+++ b/drivers/staging/comedi/drivers/dt2801.c
@@ -384,7 +384,7 @@ static int dt2801_reset(struct comedi_device *dev)
 	outb_p(DT_C_STOP, dev->iobase + DT2801_CMD);
 
 	/* dt2801_wait_for_ready(dev); */
-	comedi_udelay(100);
+	udelay(100);
 	timeout = 10000;
 	do {
 		stat = inb_p(dev->iobase + DT2801_STATUS);
@@ -402,7 +402,7 @@ static int dt2801_reset(struct comedi_device *dev)
 	outb_p(DT_C_RESET, dev->iobase + DT2801_CMD);
 	/* dt2801_writecmd(dev,DT_C_RESET); */
 
-	comedi_udelay(100);
+	udelay(100);
 	timeout = 10000;
 	do {
 		stat = inb_p(dev->iobase + DT2801_STATUS);
diff --git a/drivers/staging/comedi/drivers/dt2811.c b/drivers/staging/comedi/drivers/dt2811.c
index f05b3e711157..a112324fc45d 100644
--- a/drivers/staging/comedi/drivers/dt2811.c
+++ b/drivers/staging/comedi/drivers/dt2811.c
@@ -335,7 +335,7 @@ static int dt2811_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 #if 0
 	outb(0, dev->iobase + DT2811_ADCSR);
-	comedi_udelay(100);
+	udelay(100);
 	i = inb(dev->iobase + DT2811_ADDATLO);
 	i = inb(dev->iobase + DT2811_ADDATHI);
 #endif
@@ -351,7 +351,7 @@ static int dt2811_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 			dev->iobase + DT2811_ADCSR);
 		outb(0, dev->iobase + DT2811_ADGCR);
 
-		comedi_udelay(100);
+		udelay(100);
 
 		irq = probe_irq_off(irqs);
 		restore_flags(flags);
@@ -366,7 +366,7 @@ static int dt2811_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 			i = inb(dev->iobase + DT2811_ADDATLO);
 			i = inb(dev->iobase + DT2811_ADDATHI);
 			printk("(irq = %d)\n", irq);
-			ret = comedi_request_irq(irq, dt2811_interrupt, 0,
+			ret = request_irq(irq, dt2811_interrupt, 0,
 				driver_name, dev);
 			if (ret < 0)
 				return -EIO;
@@ -489,7 +489,7 @@ static int dt2811_detach(struct comedi_device *dev)
 	printk("comedi%d: dt2811: remove\n", dev->minor);
 
 	if (dev->irq) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 	if (dev->iobase) {
 		release_region(dev->iobase, DT2811_SIZE);
diff --git a/drivers/staging/comedi/drivers/dt2814.c b/drivers/staging/comedi/drivers/dt2814.c
index 246d0d74ce9c..c639d7415ce7 100644
--- a/drivers/staging/comedi/drivers/dt2814.c
+++ b/drivers/staging/comedi/drivers/dt2814.c
@@ -97,7 +97,7 @@ static int dt2814_ai_insn_read(struct comedi_device *dev, struct comedi_subdevic
 		for (i = 0; i < DT2814_TIMEOUT; i++) {
 			status = inb(dev->iobase + DT2814_CSR);
 			printk("dt2814: status: %02x\n", status);
-			comedi_udelay(10);
+			udelay(10);
 			if (status & DT2814_FINISH)
 				break;
 		}
@@ -262,7 +262,7 @@ static int dt2814_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	dev->board_name = "dt2814";
 
 	outb(0, dev->iobase + DT2814_CSR);
-	comedi_udelay(100);
+	udelay(100);
 	if (inb(dev->iobase + DT2814_CSR) & DT2814_ERR) {
 		printk("reset error (fatal)\n");
 		return -EIO;
@@ -279,7 +279,7 @@ static int dt2814_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 		outb(0, dev->iobase + DT2814_CSR);
 
-		comedi_udelay(100);
+		udelay(100);
 
 		irq = probe_irq_off(irqs);
 		restore_flags(flags);
@@ -293,7 +293,7 @@ static int dt2814_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 #endif
 	dev->irq = 0;
 	if (irq > 0) {
-		if (comedi_request_irq(irq, dt2814_interrupt, 0, "dt2814", dev)) {
+		if (request_irq(irq, dt2814_interrupt, 0, "dt2814", dev)) {
 			printk("(irq %d unavailable)\n", irq);
 		} else {
 			printk("( irq = %d )\n", irq);
@@ -337,7 +337,7 @@ static int dt2814_detach(struct comedi_device *dev)
 	printk("comedi%d: dt2814: remove\n", dev->minor);
 
 	if (dev->irq) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 	if (dev->iobase) {
 		release_region(dev->iobase, DT2814_SIZE);
diff --git a/drivers/staging/comedi/drivers/dt2815.c b/drivers/staging/comedi/drivers/dt2815.c
index d83ee4acbb19..b42dec60e1b7 100644
--- a/drivers/staging/comedi/drivers/dt2815.c
+++ b/drivers/staging/comedi/drivers/dt2815.c
@@ -135,7 +135,7 @@ static int dt2815_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s,
 
 		status = dt2815_wait_for_status(dev, 0x00);
 		if (status != 0) {
-			rt_printk
+			printk
 				("dt2815: failed to write low byte on %d reason %x\n",
 				chan, status);
 			return -EBUSY;
@@ -145,7 +145,7 @@ static int dt2815_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s,
 
 		status = dt2815_wait_for_status(dev, 0x10);
 		if (status != 0x10) {
-			rt_printk
+			printk
 				("dt2815: failed to write high byte on %d reason %x\n",
 				chan, status);
 			return -EBUSY;
@@ -226,7 +226,7 @@ static int dt2815_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		/* This is incredibly slow (approx 20 ms) */
 		unsigned int status;
 
-		comedi_udelay(1000);
+		udelay(1000);
 		status = inb(dev->iobase + DT2815_STATUS);
 		if (status == 4) {
 			unsigned int program;
diff --git a/drivers/staging/comedi/drivers/dt282x.c b/drivers/staging/comedi/drivers/dt282x.c
index f852b9347027..22b7304af396 100644
--- a/drivers/staging/comedi/drivers/dt282x.c
+++ b/drivers/staging/comedi/drivers/dt282x.c
@@ -389,7 +389,7 @@ struct dt282x_private {
 		int _i;					\
 		for (_i=0;_i<DT2821_TIMEOUT;_i++){	\
 			if (a){_i=0;break;}		\
-			comedi_udelay(5);			\
+			udelay(5);			\
 		}					\
 		if (_i){b}				\
 	}while (0)
@@ -463,7 +463,7 @@ static void dt282x_ao_dma_interrupt(struct comedi_device *dev)
 
 	size = cfc_read_array_from_buffer(s, ptr, devpriv->dma_maxsize);
 	if (size == 0) {
-		rt_printk("dt282x: AO underrun\n");
+		printk("dt282x: AO underrun\n");
 		dt282x_ao_cancel(dev, s);
 		s->async->events |= COMEDI_CB_OVERFLOW;
 		return;
@@ -1080,7 +1080,7 @@ static int dt282x_ao_inttrig(struct comedi_device *dev, struct comedi_subdevice
 	size = cfc_read_array_from_buffer(s, devpriv->dma[0].buf,
 		devpriv->dma_maxsize);
 	if (size == 0) {
-		rt_printk("dt282x: AO underrun\n");
+		printk("dt282x: AO underrun\n");
 		return -EPIPE;
 	}
 	prep_ao_dma(dev, 0, size);
@@ -1088,7 +1088,7 @@ static int dt282x_ao_inttrig(struct comedi_device *dev, struct comedi_subdevice
 	size = cfc_read_array_from_buffer(s, devpriv->dma[1].buf,
 		devpriv->dma_maxsize);
 	if (size == 0) {
-		rt_printk("dt282x: AO underrun\n");
+		printk("dt282x: AO underrun\n");
 		return -EPIPE;
 	}
 	prep_ao_dma(dev, 1, size);
@@ -1298,7 +1298,7 @@ static int dt282x_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 		/* trigger interrupt */
 
-		comedi_udelay(100);
+		udelay(100);
 
 		irq = probe_irq_off(irqs);
 		restore_flags(flags);
@@ -1309,8 +1309,7 @@ static int dt282x_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 #endif
 	if (irq > 0) {
 		printk(" ( irq = %d )", irq);
-		ret = comedi_request_irq(irq, dt282x_interrupt, 0, "dt282x",
-			dev);
+		ret = request_irq(irq, dt282x_interrupt, 0, "dt282x", dev);
 		if (ret < 0) {
 			printk(" failed to get irq\n");
 			return -EIO;
@@ -1403,7 +1402,7 @@ static int dt282x_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 static void free_resources(struct comedi_device *dev)
 {
 	if (dev->irq) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 	if (dev->iobase)
 		release_region(dev->iobase, DT2821_SIZE);
diff --git a/drivers/staging/comedi/drivers/dt3000.c b/drivers/staging/comedi/drivers/dt3000.c
index 7440921c408f..6ece082583c9 100644
--- a/drivers/staging/comedi/drivers/dt3000.c
+++ b/drivers/staging/comedi/drivers/dt3000.c
@@ -307,7 +307,7 @@ static int dt3k_send_cmd(struct comedi_device *dev, unsigned int cmd)
 		status = readw(devpriv->io_addr + DPR_Command_Mbx);
 		if ((status & DT3000_COMPLETION_MASK) != DT3000_NOTPROCESSED)
 			break;
-		comedi_udelay(1);
+		udelay(1);
 	}
 	if ((status & DT3000_COMPLETION_MASK) == DT3000_NOERROR) {
 		return 0;
@@ -825,8 +825,8 @@ static int dt3000_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	dev->board_name = this_board->name;
 
-	if (comedi_request_irq(devpriv->pci_dev->irq, dt3k_interrupt,
-			IRQF_SHARED, "dt3000", dev)) {
+	if (request_irq(devpriv->pci_dev->irq, dt3k_interrupt, IRQF_SHARED,
+			"dt3000", dev)) {
 		printk(" unable to allocate IRQ %u\n", devpriv->pci_dev->irq);
 		return -EINVAL;
 	}
@@ -895,7 +895,7 @@ static int dt3000_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 static int dt3000_detach(struct comedi_device *dev)
 {
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	if (devpriv) {
 		if (devpriv->pci_dev) {
diff --git a/drivers/staging/comedi/drivers/fl512.c b/drivers/staging/comedi/drivers/fl512.c
index f8ee5c5493b8..b8657c47d4cc 100644
--- a/drivers/staging/comedi/drivers/fl512.c
+++ b/drivers/staging/comedi/drivers/fl512.c
@@ -78,7 +78,7 @@ static int fl512_ai_insn(struct comedi_device *dev,
 		outb(chan, iobase + 2);	/* select chan */
 		outb(0, iobase + 3);	/* start conversion */
 		/* XXX should test "done" flag instead of delay */
-		comedi_udelay(30);	/* sleep 30 usec */
+		udelay(30);	/* sleep 30 usec */
 		lo_byte = inb(iobase + 2);	/* low 8 byte */
 		hi_byte = inb(iobase + 3) & 0xf;	/* high 4 bit and mask */
 		data[n] = lo_byte + (hi_byte << 8);
diff --git a/drivers/staging/comedi/drivers/gsc_hpdi.c b/drivers/staging/comedi/drivers/gsc_hpdi.c
index a344e2cebde1..dedd0df37549 100644
--- a/drivers/staging/comedi/drivers/gsc_hpdi.c
+++ b/drivers/staging/comedi/drivers/gsc_hpdi.c
@@ -66,7 +66,7 @@ static int dio_config_block_size(struct comedi_device *dev, unsigned int *data);
 /* #define HPDI_DEBUG      enable debugging code */
 
 #ifdef HPDI_DEBUG
-#define DEBUG_PRINT(format, args...)  rt_printk(format , ## args)
+#define DEBUG_PRINT(format, args...)  printk(format , ## args)
 #else
 #define DEBUG_PRINT(format, args...)
 #endif
@@ -109,7 +109,7 @@ enum hpdi_registers {
 int command_channel_valid(unsigned int channel)
 {
 	if (channel == 0 || channel > 6) {
-		rt_printk("gsc_hpdi: bug! invalid cable command channel\n");
+		printk("gsc_hpdi: bug! invalid cable command channel\n");
 		return 0;
 	}
 	return 1;
@@ -465,7 +465,7 @@ static int init_hpdi(struct comedi_device *dev)
 	uint32_t plx_intcsr_bits;
 
 	writel(BOARD_RESET_BIT, priv(dev)->hpdi_iobase + BOARD_CONTROL_REG);
-	comedi_udelay(10);
+	udelay(10);
 
 	writel(almost_empty_bits(32) | almost_full_bits(32),
 		priv(dev)->hpdi_iobase + RX_PROG_ALMOST_REG);
@@ -622,7 +622,7 @@ static int hpdi_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	init_plx9080(dev);
 
 	/*  get irq */
-	if (comedi_request_irq(pcidev->irq, handle_interrupt, IRQF_SHARED,
+	if (request_irq(pcidev->irq, handle_interrupt, IRQF_SHARED,
 			driver_hpdi.driver_name, dev)) {
 		printk(" unable to allocate irq %u\n", pcidev->irq);
 		return -EINVAL;
@@ -667,7 +667,7 @@ static int hpdi_detach(struct comedi_device *dev)
 	printk("comedi%d: gsc_hpdi: remove\n", dev->minor);
 
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	if (priv(dev)) {
 		if (priv(dev)->hw_dev) {
 			if (priv(dev)->plx9080_iobase) {
@@ -862,11 +862,11 @@ static int di_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	writel(bits, priv(dev)->plx9080_iobase + PLX_DMA0_DESCRIPTOR_REG);
 
 	/*  spinlock for plx dma control/status reg */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	/*  enable dma transfer */
 	writeb(PLX_DMA_EN_BIT | PLX_DMA_START_BIT | PLX_CLEAR_DMA_INTR_BIT,
 		priv(dev)->plx9080_iobase + PLX_DMA0_CS_REG);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	if (cmd->stop_src == TRIG_COUNT)
 		priv(dev)->dio_count = cmd->stop_arg;
@@ -971,7 +971,7 @@ static irqreturn_t handle_interrupt(int irq, void *d)
 			priv(dev)->hpdi_iobase + INTERRUPT_STATUS_REG);
 	}
 	/*  spin lock makes sure noone else changes plx dma control reg */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	dma0_status = readb(priv(dev)->plx9080_iobase + PLX_DMA0_CS_REG);
 	if (plx_status & ICS_DMA0_A) {	/*  dma chan 0 interrupt */
 		writeb((dma0_status & PLX_DMA_EN_BIT) | PLX_CLEAR_DMA_INTR_BIT,
@@ -983,10 +983,10 @@ static irqreturn_t handle_interrupt(int irq, void *d)
 		}
 		DEBUG_PRINT(" cleared dma ch0 interrupt\n");
 	}
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	/*  spin lock makes sure noone else changes plx dma control reg */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	dma1_status = readb(priv(dev)->plx9080_iobase + PLX_DMA1_CS_REG);
 	if (plx_status & ICS_DMA1_A)	/*  XXX */
 	{			/*  dma chan 1 interrupt */
@@ -996,7 +996,7 @@ static irqreturn_t handle_interrupt(int irq, void *d)
 
 		DEBUG_PRINT(" cleared dma ch1 interrupt\n");
 	}
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	/*  clear possible plx9080 interrupt sources */
 	if (plx_status & ICS_LDIA) {	/*  clear local doorbell interrupt */
@@ -1036,11 +1036,11 @@ void abort_dma(struct comedi_device *dev, unsigned int channel)
 	unsigned long flags;
 
 	/*  spinlock for plx dma control/status reg */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 
 	plx9080_abort_dma(priv(dev)->plx9080_iobase, channel);
 
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 }
 
 static int hpdi_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
diff --git a/drivers/staging/comedi/drivers/icp_multi.c b/drivers/staging/comedi/drivers/icp_multi.c
index 7121b37b5ea1..4cfdfc55b6ed 100644
--- a/drivers/staging/comedi/drivers/icp_multi.c
+++ b/drivers/staging/comedi/drivers/icp_multi.c
@@ -282,7 +282,7 @@ static int icp_multi_insn_read_ai(struct comedi_device *dev, struct comedi_subde
 			readw(devpriv->io_addr + ICP_MULTI_ADC_CSR));
 #endif
 
-		comedi_udelay(1);
+		udelay(1);
 
 #ifdef ICP_MULTI_EXTDEBUG
 		printk("icp multi C n=%d ST=%4x\n", n,
@@ -304,7 +304,7 @@ static int icp_multi_insn_read_ai(struct comedi_device *dev, struct comedi_subde
 						ICP_MULTI_ADC_CSR));
 #endif
 
-			comedi_udelay(1);
+			udelay(1);
 		}
 
 		/*  If we reach here, a timeout has occurred */
@@ -411,7 +411,7 @@ static int icp_multi_insn_write_ao(struct comedi_device *dev, struct comedi_subd
 						ICP_MULTI_DAC_CSR));
 #endif
 
-			comedi_udelay(1);
+			udelay(1);
 		}
 
 		/*  If we reach here, a timeout has occurred */
@@ -842,7 +842,7 @@ static int icp_multi_reset(struct comedi_device *dev)
 				devpriv->io_addr + ICP_MULTI_DAC_CSR);
 
 			/*  Delay to allow DAC time to recover */
-			comedi_udelay(1);
+			udelay(1);
 		}
 	/*  Digital outputs to 0 */
 	writew(0, devpriv->io_addr + ICP_MULTI_DO);
@@ -954,7 +954,7 @@ static int icp_multi_attach(struct comedi_device *dev, struct comedi_devconfig *
 
 	if (this_board->have_irq) {
 		if (irq) {
-			if (comedi_request_irq(irq, interrupt_service_icp_multi,
+			if (request_irq(irq, interrupt_service_icp_multi,
 					IRQF_SHARED, "Inova Icp Multi", dev)) {
 				printk(", unable to allocate IRQ %u, DISABLING IT", irq);
 				irq = 0;	/* Can't use IRQ */
@@ -1072,7 +1072,7 @@ static int icp_multi_detach(struct comedi_device *dev)
 			icp_multi_reset(dev);
 
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	if (dev->private && devpriv->io_addr)
 		iounmap(devpriv->io_addr);
diff --git a/drivers/staging/comedi/drivers/icp_multi.h b/drivers/staging/comedi/drivers/icp_multi.h
index 21d84766fea8..354ba8f14f81 100644
--- a/drivers/staging/comedi/drivers/icp_multi.h
+++ b/drivers/staging/comedi/drivers/icp_multi.h
@@ -168,14 +168,14 @@ static int pci_card_alloc(struct pcilst_struct *inova)
 	int i;
 
 	if (!inova) {
-		rt_printk(" - BUG!! inova is NULL!\n");
+		printk(" - BUG!! inova is NULL!\n");
 		return -1;
 	}
 
 	if (inova->used)
 		return 1;
 	if (comedi_pci_enable(inova->pcidev, "icp_multi")) {
-		rt_printk(" - Can't enable PCI device and request regions!\n");
+		printk(" - Can't enable PCI device and request regions!\n");
 		return -1;
 	}
 	/* Resources will be accurate now. */
@@ -248,19 +248,19 @@ static struct pcilst_struct *select_and_alloc_pci_card(unsigned short vendor_id,
 
 		card = find_free_pci_card_by_device(vendor_id, device_id);
 		if (card == NULL) {
-			rt_printk(" - Unused card not found in system!\n");
+			printk(" - Unused card not found in system!\n");
 			return NULL;
 		}
 	} else {
 		switch (find_free_pci_card_by_position(vendor_id, device_id,
 				pci_bus, pci_slot, &card)) {
 		case 1:
-			rt_printk
+			printk
 				(" - Card not found on requested position b:s %d:%d!\n",
 				pci_bus, pci_slot);
 			return NULL;
 		case 2:
-			rt_printk
+			printk
 				(" - Card on requested position is used b:s %d:%d!\n",
 				pci_bus, pci_slot);
 			return NULL;
@@ -270,7 +270,7 @@ static struct pcilst_struct *select_and_alloc_pci_card(unsigned short vendor_id,
 	err = pci_card_alloc(card);
 	if (err != 0) {
 		if (err > 0)
-			rt_printk(" - Can't allocate card!\n");
+			printk(" - Can't allocate card!\n");
 		/* else: error already printed. */
 		return NULL;
 	}
diff --git a/drivers/staging/comedi/drivers/jr3_pci.c b/drivers/staging/comedi/drivers/jr3_pci.c
index 8f7a5661a116..baf83c6a9412 100644
--- a/drivers/staging/comedi/drivers/jr3_pci.c
+++ b/drivers/staging/comedi/drivers/jr3_pci.c
@@ -185,10 +185,10 @@ static void set_transforms(volatile struct jr3_channel *channel,
 
 		set_u16(&channel->transforms[num].link[i].link_type,
 			transf.link[i].link_type);
-		comedi_udelay(1);
+		udelay(1);
 		set_s16(&channel->transforms[num].link[i].link_amount,
 			transf.link[i].link_amount);
-		comedi_udelay(1);
+		udelay(1);
 		if (transf.link[i].link_type == end_x_form) {
 			break;
 		}
@@ -496,12 +496,12 @@ static int jr3_download_firmware(struct comedi_device *dev, const u8 *data,
 								channel[i].
 								program_low
 								[addr], data1);
-							comedi_udelay(1);
+							udelay(1);
 							set_u16(&p->iobase->
 								channel[i].
 								program_high
 								[addr], data2);
-							comedi_udelay(1);
+							udelay(1);
 
 						}
 					}
@@ -734,7 +734,7 @@ static void jr3_pci_poll_dev(unsigned long data)
 	int delay;
 	int i;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	delay = 1000;
 	now = jiffies;
 	/*  Poll all channels that are ready to be polled */
@@ -757,7 +757,7 @@ static void jr3_pci_poll_dev(unsigned long data)
 			}
 		}
 	}
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	devpriv->timer.expires = jiffies + msecs_to_jiffies(delay);
 	add_timer(&devpriv->timer);
diff --git a/drivers/staging/comedi/drivers/me4000.c b/drivers/staging/comedi/drivers/me4000.c
index bffa3cf91c84..bf7833011a4c 100644
--- a/drivers/staging/comedi/drivers/me4000.c
+++ b/drivers/staging/comedi/drivers/me4000.c
@@ -283,7 +283,7 @@ static int me4000_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		s->insn_read = me4000_ai_insn_read;
 
 		if (info->irq > 0) {
-			if (comedi_request_irq(info->irq, me4000_ai_isr,
+			if (request_irq(info->irq, me4000_ai_isr,
 					IRQF_SHARED, "ME-4000", dev)) {
 				printk("comedi%d: me4000: me4000_attach(): Unable to allocate irq\n", dev->minor);
 			} else {
diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c
index ae9017744537..22a4029c30b5 100644
--- a/drivers/staging/comedi/drivers/mite.c
+++ b/drivers/staging/comedi/drivers/mite.c
@@ -258,7 +258,7 @@ struct mite_channel *mite_request_channel_in_range(struct mite_struct *mite,
 	struct mite_channel *channel = NULL;
 
 	/*  spin lock so mite_release_channel can be called safely from interrupts */
-	comedi_spin_lock_irqsave(&mite->lock, flags);
+	spin_lock_irqsave(&mite->lock, flags);
 	for (i = min_channel; i <= max_channel; ++i) {
 		if (mite->channel_allocated[i] == 0) {
 			mite->channel_allocated[i] = 1;
@@ -267,7 +267,7 @@ struct mite_channel *mite_request_channel_in_range(struct mite_struct *mite,
 			break;
 		}
 	}
-	comedi_spin_unlock_irqrestore(&mite->lock, flags);
+	spin_unlock_irqrestore(&mite->lock, flags);
 	return channel;
 }
 
@@ -277,7 +277,7 @@ void mite_release_channel(struct mite_channel *mite_chan)
 	unsigned long flags;
 
 	/*  spin lock to prevent races with mite_request_channel */
-	comedi_spin_lock_irqsave(&mite->lock, flags);
+	spin_lock_irqsave(&mite->lock, flags);
 	if (mite->channel_allocated[mite_chan->channel]) {
 		mite_dma_disarm(mite_chan);
 		mite_dma_reset(mite_chan);
@@ -292,7 +292,7 @@ MITE_CHCR reg isn't changed while dma is still active!) */
 		mite_chan->ring = NULL;
 		mmiowb();
 	}
-	comedi_spin_unlock_irqrestore(&mite->lock, flags);
+	spin_unlock_irqrestore(&mite->lock, flags);
 }
 
 void mite_dma_arm(struct mite_channel *mite_chan)
@@ -307,11 +307,11 @@ void mite_dma_arm(struct mite_channel *mite_chan)
 	smp_mb();
 	/* arm */
 	chor = CHOR_START;
-	comedi_spin_lock_irqsave(&mite->lock, flags);
+	spin_lock_irqsave(&mite->lock, flags);
 	mite_chan->done = 0;
 	writel(chor, mite->mite_io_addr + MITE_CHOR(mite_chan->channel));
 	mmiowb();
-	comedi_spin_unlock_irqrestore(&mite->lock, flags);
+	spin_unlock_irqrestore(&mite->lock, flags);
 /*       mite_dma_tcr(mite, channel); */
 }
 
@@ -413,7 +413,7 @@ void mite_prep_dma(struct mite_channel *mite_chan,
 		mcr |= CR_PSIZE32;
 		break;
 	default:
-		rt_printk
+		printk
 			("mite: bug! invalid mem bit width for dma transfer\n");
 		break;
 	}
@@ -433,7 +433,7 @@ void mite_prep_dma(struct mite_channel *mite_chan,
 		dcr |= CR_PSIZE32;
 		break;
 	default:
-		rt_printk
+		printk
 			("mite: bug! invalid dev bit width for dma transfer\n");
 		break;
 	}
@@ -539,7 +539,7 @@ int mite_sync_input_dma(struct mite_channel *mite_chan, struct comedi_async * as
 	nbytes = mite_bytes_written_to_memory_lb(mite_chan);
 	if ((int)(mite_bytes_written_to_memory_ub(mite_chan) -
 			old_alloc_count) > 0) {
-		rt_printk("mite: DMA overwrite of free area\n");
+		printk("mite: DMA overwrite of free area\n");
 		async->events |= COMEDI_CB_OVERFLOW;
 		return -1;
 	}
@@ -581,7 +581,7 @@ int mite_sync_output_dma(struct mite_channel *mite_chan, struct comedi_async * a
 		(int)(nbytes_ub - stop_count) > 0)
 		nbytes_ub = stop_count;
 	if ((int)(nbytes_ub - old_alloc_count) > 0) {
-		rt_printk("mite: DMA underrun\n");
+		printk("mite: DMA underrun\n");
 		async->events |= COMEDI_CB_OVERFLOW;
 		return -1;
 	}
@@ -602,7 +602,7 @@ unsigned mite_get_status(struct mite_channel *mite_chan)
 	unsigned status;
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&mite->lock, flags);
+	spin_lock_irqsave(&mite->lock, flags);
 	status = readl(mite->mite_io_addr + MITE_CHSR(mite_chan->channel));
 	if (status & CHSR_DONE) {
 		mite_chan->done = 1;
@@ -610,7 +610,7 @@ unsigned mite_get_status(struct mite_channel *mite_chan)
 			mite->mite_io_addr + MITE_CHOR(mite_chan->channel));
 	}
 	mmiowb();
-	comedi_spin_unlock_irqrestore(&mite->lock, flags);
+	spin_unlock_irqrestore(&mite->lock, flags);
 	return status;
 }
 
@@ -621,9 +621,9 @@ int mite_done(struct mite_channel *mite_chan)
 	int done;
 
 	mite_get_status(mite_chan);
-	comedi_spin_lock_irqsave(&mite->lock, flags);
+	spin_lock_irqsave(&mite->lock, flags);
 	done = mite_chan->done;
-	comedi_spin_unlock_irqrestore(&mite->lock, flags);
+	spin_unlock_irqrestore(&mite->lock, flags);
 	return done;
 }
 
diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h
index cdaf8a31688a..31942319aa38 100644
--- a/drivers/staging/comedi/drivers/mite.h
+++ b/drivers/staging/comedi/drivers/mite.h
@@ -405,7 +405,7 @@ static inline int CR_RL(unsigned int retry_limit)
 		value++;
 	}
 	if (value > 0x7)
-		rt_printk("comedi: bug! retry_limit too large\n");
+		printk("comedi: bug! retry_limit too large\n");
 	return (value & 0x7) << 21;
 }
 
diff --git a/drivers/staging/comedi/drivers/mpc624.c b/drivers/staging/comedi/drivers/mpc624.c
index 15731a285442..4a0e647f631a 100644
--- a/drivers/staging/comedi/drivers/mpc624.c
+++ b/drivers/staging/comedi/drivers/mpc624.c
@@ -166,9 +166,9 @@ static int mpc624_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	unsigned long iobase;
 
 	iobase = it->options[0];
-	rt_printk("comedi%d: mpc624 [0x%04lx, ", dev->minor, iobase);
+	printk("comedi%d: mpc624 [0x%04lx, ", dev->minor, iobase);
 	if (request_region(iobase, MPC624_SIZE, "mpc624") == NULL) {
-		rt_printk("I/O port(s) in use\n");
+		printk("I/O port(s) in use\n");
 		return -EIO;
 	}
 
@@ -182,46 +182,46 @@ static int mpc624_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	switch (it->options[1]) {
 	case 0:
 		devpriv->ulConvertionRate = MPC624_SPEED_3_52_kHz;
-		rt_printk("3.52 kHz, ");
+		printk("3.52 kHz, ");
 		break;
 	case 1:
 		devpriv->ulConvertionRate = MPC624_SPEED_1_76_kHz;
-		rt_printk("1.76 kHz, ");
+		printk("1.76 kHz, ");
 		break;
 	case 2:
 		devpriv->ulConvertionRate = MPC624_SPEED_880_Hz;
-		rt_printk("880 Hz, ");
+		printk("880 Hz, ");
 		break;
 	case 3:
 		devpriv->ulConvertionRate = MPC624_SPEED_440_Hz;
-		rt_printk("440 Hz, ");
+		printk("440 Hz, ");
 		break;
 	case 4:
 		devpriv->ulConvertionRate = MPC624_SPEED_220_Hz;
-		rt_printk("220 Hz, ");
+		printk("220 Hz, ");
 		break;
 	case 5:
 		devpriv->ulConvertionRate = MPC624_SPEED_110_Hz;
-		rt_printk("110 Hz, ");
+		printk("110 Hz, ");
 		break;
 	case 6:
 		devpriv->ulConvertionRate = MPC624_SPEED_55_Hz;
-		rt_printk("55 Hz, ");
+		printk("55 Hz, ");
 		break;
 	case 7:
 		devpriv->ulConvertionRate = MPC624_SPEED_27_5_Hz;
-		rt_printk("27.5 Hz, ");
+		printk("27.5 Hz, ");
 		break;
 	case 8:
 		devpriv->ulConvertionRate = MPC624_SPEED_13_75_Hz;
-		rt_printk("13.75 Hz, ");
+		printk("13.75 Hz, ");
 		break;
 	case 9:
 		devpriv->ulConvertionRate = MPC624_SPEED_6_875_Hz;
-		rt_printk("6.875 Hz, ");
+		printk("6.875 Hz, ");
 		break;
 	default:
-		rt_printk
+		printk
 			("illegal convertion rate setting! Valid numbers are 0..9. Using 9 => 6.875 Hz, ");
 		devpriv->ulConvertionRate = MPC624_SPEED_3_52_kHz;
 	}
@@ -237,29 +237,29 @@ static int mpc624_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	switch (it->options[1]) {
 	default:
 		s->maxdata = 0x3FFFFFFF;
-		rt_printk("30 bit, ");
+		printk("30 bit, ");
 	}
 
 	switch (it->options[1]) {
 	case 0:
 		s->range_table = &range_mpc624_bipolar1;
-		rt_printk("1.01V]: ");
+		printk("1.01V]: ");
 		break;
 	default:
 		s->range_table = &range_mpc624_bipolar10;
-		rt_printk("10.1V]: ");
+		printk("10.1V]: ");
 	}
 	s->len_chanlist = 1;
 	s->insn_read = mpc624_ai_rinsn;
 
-	rt_printk("attached\n");
+	printk("attached\n");
 
 	return 1;
 }
 
 static int mpc624_detach(struct comedi_device *dev)
 {
-	rt_printk("comedi%d: mpc624: remove\n", dev->minor);
+	printk("comedi%d: mpc624: remove\n", dev->minor);
 
 	if (dev->iobase)
 		release_region(dev->iobase, MPC624_SIZE);
@@ -279,48 +279,48 @@ static int mpc624_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s
 
 	/*  WARNING: We always write 0 to GNSWA bit, so the channel range is +-/10.1Vdc */
 	outb(insn->chanspec, dev->iobase + MPC624_GNMUXCH);
-/* rt_printk("Channel %d: \n", insn->chanspec); */
+/* printk("Channel %d: \n", insn->chanspec); */
 	if (!insn->n) {
-		rt_printk("MPC624: Warning, no data to aquire\n");
+		printk("MPC624: Warning, no data to aquire\n");
 		return 0;
 	}
 
 	for (n = 0; n < insn->n; n++) {
 		/*  Trigger the convertion */
 		outb(MPC624_ADSCK, dev->iobase + MPC624_ADC);
-		comedi_udelay(1);
+		udelay(1);
 		outb(MPC624_ADCS | MPC624_ADSCK, dev->iobase + MPC624_ADC);
-		comedi_udelay(1);
+		udelay(1);
 		outb(0, dev->iobase + MPC624_ADC);
-		comedi_udelay(1);
+		udelay(1);
 
 		/*  Wait for the convertion to end */
 		for (i = 0; i < TIMEOUT; i++) {
 			ucPort = inb(dev->iobase + MPC624_ADC);
 			if (ucPort & MPC624_ADBUSY)
-				comedi_udelay(1000);
+				udelay(1000);
 			else
 				break;
 		}
 		if (i == TIMEOUT) {
-			rt_printk("MPC624: timeout (%dms)\n", TIMEOUT);
+			printk("MPC624: timeout (%dms)\n", TIMEOUT);
 			data[n] = 0;
 			return -ETIMEDOUT;
 		}
 		/*  Start reading data */
 		data_in = 0;
 		data_out = devpriv->ulConvertionRate;
-		comedi_udelay(1);
+		udelay(1);
 		for (i = 0; i < 32; i++) {
 			/*  Set the clock low */
 			outb(0, dev->iobase + MPC624_ADC);
-			comedi_udelay(1);
+			udelay(1);
 
 			if (data_out & (1 << 31))	/*  the next bit is a 1 */
 			{
 				/*  Set the ADSDI line (send to MPC624) */
 				outb(MPC624_ADSDI, dev->iobase + MPC624_ADC);
-				comedi_udelay(1);
+				udelay(1);
 				/*  Set the clock high */
 				outb(MPC624_ADSCK | MPC624_ADSDI,
 					dev->iobase + MPC624_ADC);
@@ -328,17 +328,17 @@ static int mpc624_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s
 			{
 				/*  Set the ADSDI line (send to MPC624) */
 				outb(0, dev->iobase + MPC624_ADC);
-				comedi_udelay(1);
+				udelay(1);
 				/*  Set the clock high */
 				outb(MPC624_ADSCK, dev->iobase + MPC624_ADC);
 			}
 			/*  Read ADSDO on high clock (receive from MPC624) */
-			comedi_udelay(1);
+			udelay(1);
 			data_in <<= 1;
 			data_in |=
 				(inb(dev->iobase +
 					MPC624_ADC) & MPC624_ADSDO) >> 4;
-			comedi_udelay(1);
+			udelay(1);
 
 			data_out <<= 1;
 		}
@@ -357,10 +357,10 @@ static int mpc624_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s
 		/*    00: sub-LSB */
 
 		if (data_in & MPC624_EOC_BIT)
-			rt_printk("MPC624: EOC bit is set (data_in=%lu)!",
+			printk("MPC624: EOC bit is set (data_in=%lu)!",
 				data_in);
 		if (data_in & MPC624_DMY_BIT)
-			rt_printk("MPC624: DMY bit is set (data_in=%lu)!",
+			printk("MPC624: DMY bit is set (data_in=%lu)!",
 				data_in);
 		if (data_in & MPC624_SGN_BIT)	/*  check the sign bit */
 		{		/*  The voltage is positive */
diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index 2751ea7f9192..491bdf22cd3e 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -432,8 +432,8 @@ static int ni6527_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		devpriv->mite->daq_io_addr + Clear_Register);
 	writeb(0x00, devpriv->mite->daq_io_addr + Master_Interrupt_Control);
 
-	ret = comedi_request_irq(mite_irq(devpriv->mite), ni6527_interrupt,
-		IRQF_SHARED, "ni6527", dev);
+	ret = request_irq(mite_irq(devpriv->mite), ni6527_interrupt,
+			  IRQF_SHARED, "ni6527", dev);
 	if (ret < 0) {
 		printk(" irq not available");
 	} else
@@ -452,7 +452,7 @@ static int ni6527_detach(struct comedi_device *dev)
 	}
 
 	if (dev->irq) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 
 	if (devpriv && devpriv->mite) {
diff --git a/drivers/staging/comedi/drivers/ni_65xx.c b/drivers/staging/comedi/drivers/ni_65xx.c
index b4e63fba8aba..8c3cbf9f0e11 100644
--- a/drivers/staging/comedi/drivers/ni_65xx.c
+++ b/drivers/staging/comedi/drivers/ni_65xx.c
@@ -437,12 +437,12 @@ static int ni_65xx_dio_insn_bits(struct comedi_device *dev, struct comedi_subdev
 			writeb(bits,
 				private(dev)->mite->daq_io_addr +
 				Port_Data(port));
-/* rt_printk("wrote 0x%x to port %i\n", bits, port); */
+/* printk("wrote 0x%x to port %i\n", bits, port); */
 		}
 		port_read_bits =
 			readb(private(dev)->mite->daq_io_addr +
 			Port_Data(port));
-/* rt_printk("read 0x%x from port %i\n", port_read_bits, port); */
+/* printk("read 0x%x from port %i\n", port_read_bits, port); */
 		if (bitshift > 0) {
 			port_read_bits <<= bitshift;
 		} else {
@@ -742,8 +742,8 @@ static int ni_65xx_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	/* Set filter interval to 0  (32bit reg) */
 	writeb(0x00000000, private(dev)->mite->daq_io_addr + Filter_Interval);
 
-	ret = comedi_request_irq(dev->irq, ni_65xx_interrupt, IRQF_SHARED,
-		"ni_65xx", dev);
+	ret = request_irq(dev->irq, ni_65xx_interrupt, IRQF_SHARED,
+			  "ni_65xx", dev);
 	if (ret < 0) {
 		dev->irq = 0;
 		printk(" irq not available");
@@ -764,7 +764,7 @@ static int ni_65xx_detach(struct comedi_device *dev)
 	}
 
 	if (dev->irq) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 
 	if (private(dev)) {
diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c
index 78c106ce5fa5..68a6ec8fd1a0 100644
--- a/drivers/staging/comedi/drivers/ni_660x.c
+++ b/drivers/staging/comedi/drivers/ni_660x.c
@@ -695,7 +695,7 @@ static enum NI_660x_Register ni_gpct_to_660x_register(enum ni_gpct_register reg)
 		ni_660x_register = G3InterruptEnable;
 		break;
 	default:
-		rt_printk("%s: unhandled register 0x%x in switch.\n",
+		printk("%s: unhandled register 0x%x in switch.\n",
 			__func__, reg);
 		BUG();
 		return 0;
@@ -719,7 +719,7 @@ static inline void ni_660x_write_register(struct comedi_device *dev,
 		writel(bits, write_address);
 		break;
 	default:
-		rt_printk("%s: %s: bug! unhandled case (reg=0x%x) in switch.\n",
+		printk("%s: %s: bug! unhandled case (reg=0x%x) in switch.\n",
 			__FILE__, __func__, reg);
 		BUG();
 		break;
@@ -741,7 +741,7 @@ static inline unsigned ni_660x_read_register(struct comedi_device *dev,
 		return readl(read_address);
 		break;
 	default:
-		rt_printk("%s: %s: bug! unhandled case (reg=0x%x) in switch.\n",
+		printk("%s: %s: bug! unhandled case (reg=0x%x) in switch.\n",
 			__FILE__, __func__, reg);
 		BUG();
 		break;
@@ -777,7 +777,7 @@ static inline void ni_660x_set_dma_channel(struct comedi_device *dev,
 	unsigned mite_channel, struct ni_gpct *counter)
 {
 	unsigned long flags;
-	comedi_spin_lock_irqsave(&private(dev)->soft_reg_copy_lock, flags);
+	spin_lock_irqsave(&private(dev)->soft_reg_copy_lock, flags);
 	private(dev)->dma_configuration_soft_copies[counter->chip_index] &=
 		~dma_select_mask(mite_channel);
 	private(dev)->dma_configuration_soft_copies[counter->chip_index] |=
@@ -788,14 +788,14 @@ static inline void ni_660x_set_dma_channel(struct comedi_device *dev,
 			chip_index] | dma_reset_bit(mite_channel),
 		DMAConfigRegister);
 	mmiowb();
-	comedi_spin_unlock_irqrestore(&private(dev)->soft_reg_copy_lock, flags);
+	spin_unlock_irqrestore(&private(dev)->soft_reg_copy_lock, flags);
 }
 
 static inline void ni_660x_unset_dma_channel(struct comedi_device *dev,
 	unsigned mite_channel, struct ni_gpct *counter)
 {
 	unsigned long flags;
-	comedi_spin_lock_irqsave(&private(dev)->soft_reg_copy_lock, flags);
+	spin_lock_irqsave(&private(dev)->soft_reg_copy_lock, flags);
 	private(dev)->dma_configuration_soft_copies[counter->chip_index] &=
 		~dma_select_mask(mite_channel);
 	private(dev)->dma_configuration_soft_copies[counter->chip_index] |=
@@ -804,7 +804,7 @@ static inline void ni_660x_unset_dma_channel(struct comedi_device *dev,
 		private(dev)->dma_configuration_soft_copies[counter->
 			chip_index], DMAConfigRegister);
 	mmiowb();
-	comedi_spin_unlock_irqrestore(&private(dev)->soft_reg_copy_lock, flags);
+	spin_unlock_irqrestore(&private(dev)->soft_reg_copy_lock, flags);
 }
 
 static int ni_660x_request_mite_channel(struct comedi_device *dev,
@@ -813,13 +813,13 @@ static int ni_660x_request_mite_channel(struct comedi_device *dev,
 	unsigned long flags;
 	struct mite_channel *mite_chan;
 
-	comedi_spin_lock_irqsave(&private(dev)->mite_channel_lock, flags);
+	spin_lock_irqsave(&private(dev)->mite_channel_lock, flags);
 	BUG_ON(counter->mite_chan);
 	mite_chan =
 		mite_request_channel(private(dev)->mite, mite_ring(private(dev),
 			counter));
 	if (mite_chan == NULL) {
-		comedi_spin_unlock_irqrestore(&private(dev)->mite_channel_lock,
+		spin_unlock_irqrestore(&private(dev)->mite_channel_lock,
 			flags);
 		comedi_error(dev,
 			"failed to reserve mite dma channel for counter.");
@@ -828,7 +828,7 @@ static int ni_660x_request_mite_channel(struct comedi_device *dev,
 	mite_chan->dir = direction;
 	ni_tio_set_mite_channel(counter, mite_chan);
 	ni_660x_set_dma_channel(dev, mite_chan->channel, counter);
-	comedi_spin_unlock_irqrestore(&private(dev)->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&private(dev)->mite_channel_lock, flags);
 	return 0;
 }
 
@@ -836,7 +836,7 @@ void ni_660x_release_mite_channel(struct comedi_device *dev, struct ni_gpct *cou
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&private(dev)->mite_channel_lock, flags);
+	spin_lock_irqsave(&private(dev)->mite_channel_lock, flags);
 	if (counter->mite_chan) {
 		struct mite_channel *mite_chan = counter->mite_chan;
 
@@ -844,7 +844,7 @@ void ni_660x_release_mite_channel(struct comedi_device *dev, struct ni_gpct *cou
 		ni_tio_set_mite_channel(counter, NULL);
 		mite_release_channel(mite_chan);
 	}
-	comedi_spin_unlock_irqrestore(&private(dev)->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&private(dev)->mite_channel_lock, flags);
 }
 
 static int ni_660x_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
@@ -921,13 +921,13 @@ static irqreturn_t ni_660x_interrupt(int irq, void *d)
 	if (dev->attached == 0)
 		return IRQ_NONE;
 	/* lock to avoid race with comedi_poll */
-	comedi_spin_lock_irqsave(&private(dev)->interrupt_lock, flags);
+	spin_lock_irqsave(&private(dev)->interrupt_lock, flags);
 	smp_mb();
 	for (i = 0; i < ni_660x_num_counters(dev); ++i) {
 		s = dev->subdevices + NI_660X_GPCT_SUBDEV(i);
 		ni_660x_handle_gpct_interrupt(dev, s);
 	}
-	comedi_spin_unlock_irqrestore(&private(dev)->interrupt_lock, flags);
+	spin_unlock_irqrestore(&private(dev)->interrupt_lock, flags);
 	return IRQ_HANDLED;
 }
 
@@ -936,9 +936,9 @@ static int ni_660x_input_poll(struct comedi_device *dev,
 {
 	unsigned long flags;
 	/* lock to avoid race with comedi_poll */
-	comedi_spin_lock_irqsave(&private(dev)->interrupt_lock, flags);
+	spin_lock_irqsave(&private(dev)->interrupt_lock, flags);
 	mite_sync_input_dma(subdev_to_counter(s)->mite_chan, s->async);
-	comedi_spin_unlock_irqrestore(&private(dev)->interrupt_lock, flags);
+	spin_unlock_irqrestore(&private(dev)->interrupt_lock, flags);
 	return comedi_buf_read_n_available(s->async);
 }
 
@@ -1107,10 +1107,8 @@ static int ni_660x_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	for (i = 0; i < board(dev)->n_chips; ++i) {
 		set_tio_counterswap(dev, i);
 	}
-	ret = comedi_request_irq(mite_irq(private(dev)->mite),
-				 ni_660x_interrupt, IRQF_SHARED, "ni_660x",
-				 dev);
-
+	ret = request_irq(mite_irq(private(dev)->mite), ni_660x_interrupt,
+			  IRQF_SHARED, "ni_660x", dev);
 	if (ret < 0) {
 		printk(" irq not available\n");
 		return ret;
@@ -1131,7 +1129,7 @@ static int ni_660x_detach(struct comedi_device *dev)
 
 	/* Free irq */
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	if (dev->private) {
 		if (private(dev)->counter_dev)
diff --git a/drivers/staging/comedi/drivers/ni_670x.c b/drivers/staging/comedi/drivers/ni_670x.c
index 0a9678cdadc7..7bb22919eb8f 100644
--- a/drivers/staging/comedi/drivers/ni_670x.c
+++ b/drivers/staging/comedi/drivers/ni_670x.c
@@ -217,7 +217,7 @@ static int ni_670x_detach(struct comedi_device *dev)
 		mite_unsetup(devpriv->mite);
 
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	return 0;
 }
diff --git a/drivers/staging/comedi/drivers/ni_at_a2150.c b/drivers/staging/comedi/drivers/ni_at_a2150.c
index e6afc42d5d37..4f348b77bb4a 100644
--- a/drivers/staging/comedi/drivers/ni_at_a2150.c
+++ b/drivers/staging/comedi/drivers/ni_at_a2150.c
@@ -201,9 +201,9 @@ COMEDI_INITCLEANUP(driver_a2150);
 
 static void ni_dump_regs(struct comedi_device *dev)
 {
-	rt_printk("config bits 0x%x\n", devpriv->config_bits);
-	rt_printk("irq dma bits 0x%x\n", devpriv->irq_dma_bits);
-	rt_printk("status bits 0x%x\n", inw(dev->iobase + STATUS_REG));
+	printk("config bits 0x%x\n", devpriv->config_bits);
+	printk("irq dma bits 0x%x\n", devpriv->irq_dma_bits);
+	printk("status bits 0x%x\n", inw(dev->iobase + STATUS_REG));
 }
 
 #endif
@@ -370,7 +370,7 @@ static int a2150_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 			printk(" invalid irq line %u\n", irq);
 			return -EINVAL;
 		}
-		if (comedi_request_irq(irq, a2150_interrupt, 0,
+		if (request_irq(irq, a2150_interrupt, 0,
 				driver_a2150.driver_name, dev)) {
 			printk("unable to allocate irq %u\n", irq);
 			return -EINVAL;
@@ -437,7 +437,7 @@ static int a2150_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	for (i = 0; i < timeout; i++) {
 		if ((DCAL_BIT & inw(dev->iobase + STATUS_REG)) == 0)
 			break;
-		comedi_udelay(1000);
+		udelay(1000);
 	}
 	if (i == timeout) {
 		printk(" timed out waiting for offset calibration to complete\n");
@@ -461,7 +461,7 @@ static int a2150_detach(struct comedi_device *dev)
 	}
 
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	if (devpriv) {
 		if (devpriv->dma)
 			free_dma(devpriv->dma);
@@ -764,7 +764,7 @@ static int a2150_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 		for (i = 0; i < timeout; i++) {
 			if (inw(dev->iobase + STATUS_REG) & FNE_BIT)
 				break;
-			comedi_udelay(1);
+			udelay(1);
 		}
 		if (i == timeout) {
 			comedi_error(dev, "timeout");
@@ -778,7 +778,7 @@ static int a2150_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 		for (i = 0; i < timeout; i++) {
 			if (inw(dev->iobase + STATUS_REG) & FNE_BIT)
 				break;
-			comedi_udelay(1);
+			udelay(1);
 		}
 		if (i == timeout) {
 			comedi_error(dev, "timeout");
@@ -789,7 +789,7 @@ static int a2150_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 #endif
 		data[n] = inw(dev->iobase + FIFO_DATA_REG);
 #ifdef A2150_DEBUG
-		rt_printk(" data is %i\n", data[n]);
+		printk(" data is %i\n", data[n]);
 #endif
 		data[n] ^= 0x8000;
 	}
diff --git a/drivers/staging/comedi/drivers/ni_atmio.c b/drivers/staging/comedi/drivers/ni_atmio.c
index 0116a4a0a06e..c39d388c90f2 100644
--- a/drivers/staging/comedi/drivers/ni_atmio.c
+++ b/drivers/staging/comedi/drivers/ni_atmio.c
@@ -301,14 +301,14 @@ static void ni_atmio_win_out(struct comedi_device *dev, uint16_t data, int addr)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->window_lock, flags);
+	spin_lock_irqsave(&devpriv->window_lock, flags);
 	if ((addr) < 8) {
 		ni_writew(data, addr * 2);
 	} else {
 		ni_writew(addr, Window_Address);
 		ni_writew(data, Window_Data);
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->window_lock, flags);
+	spin_unlock_irqrestore(&devpriv->window_lock, flags);
 }
 
 static uint16_t ni_atmio_win_in(struct comedi_device *dev, int addr)
@@ -316,14 +316,14 @@ static uint16_t ni_atmio_win_in(struct comedi_device *dev, int addr)
 	unsigned long flags;
 	uint16_t ret;
 
-	comedi_spin_lock_irqsave(&devpriv->window_lock, flags);
+	spin_lock_irqsave(&devpriv->window_lock, flags);
 	if (addr < 8) {
 		ret = ni_readw(addr * 2);
 	} else {
 		ni_writew(addr, Window_Address);
 		ret = ni_readw(Window_Data);
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->window_lock, flags);
+	spin_unlock_irqrestore(&devpriv->window_lock, flags);
 
 	return ret;
 }
@@ -362,7 +362,7 @@ static int ni_atmio_detach(struct comedi_device *dev)
 	if (dev->iobase)
 		release_region(dev->iobase, NI_SIZE);
 	if (dev->irq) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 	if (devpriv->isapnp_dev)
 		pnp_device_detach(devpriv->isapnp_dev);
@@ -478,8 +478,8 @@ static int ni_atmio_attach(struct comedi_device *dev, struct comedi_devconfig *i
 			return -EINVAL;
 		}
 		printk(" ( irq = %u )", irq);
-		ret = comedi_request_irq(irq, ni_E_interrupt,
-					  NI_E_IRQ_FLAGS, "ni_atmio", dev);
+		ret = request_irq(irq, ni_E_interrupt, NI_E_IRQ_FLAGS,
+				  "ni_atmio", dev);
 
 		if (ret < 0) {
 			printk(" irq not available\n");
diff --git a/drivers/staging/comedi/drivers/ni_atmio16d.c b/drivers/staging/comedi/drivers/ni_atmio16d.c
index 215f7a0e9d36..67034380af3a 100644
--- a/drivers/staging/comedi/drivers/ni_atmio16d.c
+++ b/drivers/staging/comedi/drivers/ni_atmio16d.c
@@ -579,7 +579,7 @@ static int atmio16d_ai_insn_read(struct comedi_device *dev, struct comedi_subdev
 		}
 		/* end waiting, now check if it timed out */
 		if (t == ATMIO16D_TIMEOUT) {
-			rt_printk("atmio16d: timeout\n");
+			printk("atmio16d: timeout\n");
 
 			return -ETIME;
 		}
@@ -743,8 +743,7 @@ static int atmio16d_attach(struct comedi_device *dev, struct comedi_devconfig *i
 	irq = it->options[1];
 	if (irq) {
 
-		ret = comedi_request_irq(irq, atmio16d_interrupt,
-					  0, "atmio16d", dev);
+		ret = request_irq(irq, atmio16d_interrupt, 0, "atmio16d", dev);
 		if (ret < 0) {
 			printk("failed to allocate irq %u\n", irq);
 			return ret;
@@ -856,7 +855,7 @@ static int atmio16d_detach(struct comedi_device *dev)
 		subdev_8255_cleanup(dev, dev->subdevices + 3);
 
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	reset_atmio16d(dev);
 
diff --git a/drivers/staging/comedi/drivers/ni_daq_700.c b/drivers/staging/comedi/drivers/ni_daq_700.c
index f01c0b008b50..6a69d36018e0 100644
--- a/drivers/staging/comedi/drivers/ni_daq_700.c
+++ b/drivers/staging/comedi/drivers/ni_daq_700.c
@@ -425,7 +425,7 @@ static int dio700_detach(struct comedi_device *dev)
 	if (thisboard->bustype != pcmcia_bustype && dev->iobase)
 		release_region(dev->iobase, DIO700_SIZE);
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	return 0;
 };
diff --git a/drivers/staging/comedi/drivers/ni_daq_dio24.c b/drivers/staging/comedi/drivers/ni_daq_dio24.c
index 68c3121c1b32..7f378e529d0f 100644
--- a/drivers/staging/comedi/drivers/ni_daq_dio24.c
+++ b/drivers/staging/comedi/drivers/ni_daq_dio24.c
@@ -182,7 +182,7 @@ static int dio24_detach(struct comedi_device *dev)
 	if (thisboard->bustype != pcmcia_bustype && dev->iobase)
 		release_region(dev->iobase, DIO24_SIZE);
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	return 0;
 };
diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c
index 031d994ed227..435e34a838aa 100644
--- a/drivers/staging/comedi/drivers/ni_labpc.c
+++ b/drivers/staging/comedi/drivers/ni_labpc.c
@@ -516,7 +516,7 @@ int labpc_common_attach(struct comedi_device *dev, unsigned long iobase,
 		isr_flags = 0;
 		if (thisboard->bustype == pci_bustype)
 			isr_flags |= IRQF_SHARED;
-		if (comedi_request_irq(irq, labpc_interrupt, isr_flags,
+		if (request_irq(irq, labpc_interrupt, isr_flags,
 				driver_labpc.driver_name, dev)) {
 			printk("unable to allocate irq %u\n", irq);
 			return -EINVAL;
@@ -737,7 +737,7 @@ int labpc_common_detach(struct comedi_device *dev)
 	if (devpriv->dma_chan)
 		free_dma(devpriv->dma_chan);
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	if (thisboard->bustype == isa_bustype && dev->iobase)
 		release_region(dev->iobase, LABPC_SIZE);
 #ifdef CONFIG_COMEDI_PCI
@@ -759,10 +759,10 @@ static int labpc_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	devpriv->command2_bits &= ~SWTRIG_BIT & ~HWTRIG_BIT & ~PRETRIG_BIT;
 	devpriv->write_byte(devpriv->command2_bits, dev->iobase + COMMAND2_REG);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	devpriv->command3_bits = 0;
 	devpriv->write_byte(devpriv->command3_bits, dev->iobase + COMMAND3_REG);
@@ -788,7 +788,7 @@ static enum scan_mode labpc_ai_scan_mode(const struct comedi_cmd *cmd)
 	if (CR_CHAN(cmd->chanlist[0]) > CR_CHAN(cmd->chanlist[1]))
 		return MODE_MULT_CHAN_DOWN;
 
-	rt_printk("ni_labpc: bug! this should never happen\n");
+	printk("ni_labpc: bug! this should never happen\n");
 
 	return 0;
 }
@@ -844,7 +844,7 @@ static int labpc_ai_chanlist_invalid(const struct comedi_device *dev,
 			}
 			break;
 		default:
-			rt_printk("ni_labpc: bug! in chanlist check\n");
+			printk("ni_labpc: bug! in chanlist check\n");
 			return 1;
 			break;
 		}
@@ -1082,10 +1082,10 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	aref = CR_AREF(cmd->chanlist[0]);
 
 	/*  make sure board is disabled before setting up aquisition */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	devpriv->command2_bits &= ~SWTRIG_BIT & ~HWTRIG_BIT & ~PRETRIG_BIT;
 	devpriv->write_byte(devpriv->command2_bits, dev->iobase + COMMAND2_REG);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	devpriv->command3_bits = 0;
 	devpriv->write_byte(devpriv->command3_bits, dev->iobase + COMMAND3_REG);
@@ -1174,7 +1174,7 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		devpriv->command1_bits |= ADC_SCAN_EN_BIT;
 		/* need a brief delay before enabling scan, or scan list will get screwed when you switch
 		 * between scan up to scan down mode - dunno why */
-		comedi_udelay(1);
+		udelay(1);
 		devpriv->write_byte(devpriv->command1_bits,
 			dev->iobase + COMMAND1_REG);
 	}
@@ -1275,7 +1275,7 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 
 	/*  command2 reg */
 	/*  use 2 cascaded counters for pacing */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	devpriv->command2_bits |= CASCADE_BIT;
 	switch (cmd->start_src) {
 	case TRIG_EXT:
@@ -1303,7 +1303,7 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		return -1;
 	}
 	devpriv->write_byte(devpriv->command2_bits, dev->iobase + COMMAND2_REG);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	return 0;
 }
@@ -1510,10 +1510,10 @@ static int labpc_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 	unsigned long flags;
 
 	/*  disable timed conversions */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	devpriv->command2_bits &= ~SWTRIG_BIT & ~HWTRIG_BIT & ~PRETRIG_BIT;
 	devpriv->write_byte(devpriv->command2_bits, dev->iobase + COMMAND2_REG);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	/*  disable interrupt generation and dma */
 	devpriv->command3_bits = 0;
@@ -1571,7 +1571,7 @@ static int labpc_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 			if (devpriv->read_byte(dev->iobase +
 					STATUS1_REG) & DATA_AVAIL_BIT)
 				break;
-			comedi_udelay(1);
+			udelay(1);
 		}
 		if (i == timeout) {
 			comedi_error(dev, "timeout");
@@ -1598,10 +1598,10 @@ static int labpc_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
 	/*  turn off pacing of analog output channel */
 	/* note: hardware bug in daqcard-1200 means pacing cannot
 	 * be independently enabled/disabled for its the two channels */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	devpriv->command2_bits &= ~DAC_PACED_BIT(channel);
 	devpriv->write_byte(devpriv->command2_bits, dev->iobase + COMMAND2_REG);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	/*  set range */
 	if (thisboard->register_layout == labpc_1200_layout) {
@@ -1809,12 +1809,12 @@ static void labpc_serial_out(struct comedi_device *dev, unsigned int value,
 			devpriv->command5_bits |= SDATA_BIT;
 		else
 			devpriv->command5_bits &= ~SDATA_BIT;
-		comedi_udelay(1);
+		udelay(1);
 		devpriv->write_byte(devpriv->command5_bits,
 			dev->iobase + COMMAND5_REG);
 		/*  set clock to load bit */
 		devpriv->command5_bits |= SCLOCK_BIT;
-		comedi_udelay(1);
+		udelay(1);
 		devpriv->write_byte(devpriv->command5_bits,
 			dev->iobase + COMMAND5_REG);
 	}
@@ -1830,16 +1830,16 @@ static unsigned int labpc_serial_in(struct comedi_device *dev)
 	for (i = 1; i <= value_width; i++) {
 		/*  set serial clock */
 		devpriv->command5_bits |= SCLOCK_BIT;
-		comedi_udelay(1);
+		udelay(1);
 		devpriv->write_byte(devpriv->command5_bits,
 			dev->iobase + COMMAND5_REG);
 		/*  clear clock bit */
 		devpriv->command5_bits &= ~SCLOCK_BIT;
-		comedi_udelay(1);
+		udelay(1);
 		devpriv->write_byte(devpriv->command5_bits,
 			dev->iobase + COMMAND5_REG);
 		/*  read bits most significant bit first */
-		comedi_udelay(1);
+		udelay(1);
 		devpriv->status2_bits =
 			devpriv->read_byte(dev->iobase + STATUS2_REG);
 		if (devpriv->status2_bits & EEPROM_OUT_BIT) {
@@ -1858,10 +1858,10 @@ static unsigned int labpc_eeprom_read(struct comedi_device *dev, unsigned int ad
 
 	/*  enable read/write to eeprom */
 	devpriv->command5_bits &= ~EEPROM_EN_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 	devpriv->command5_bits |= EEPROM_EN_BIT | EEPROM_WRITE_UNPROTECT_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 
 	/*  send read instruction */
@@ -1873,7 +1873,7 @@ static unsigned int labpc_eeprom_read(struct comedi_device *dev, unsigned int ad
 
 	/*  disable read/write to eeprom */
 	devpriv->command5_bits &= ~EEPROM_EN_BIT & ~EEPROM_WRITE_UNPROTECT_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 
 	return value;
@@ -1904,21 +1904,21 @@ static unsigned int labpc_eeprom_write(struct comedi_device *dev,
 
 	/*  enable read/write to eeprom */
 	devpriv->command5_bits &= ~EEPROM_EN_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 	devpriv->command5_bits |= EEPROM_EN_BIT | EEPROM_WRITE_UNPROTECT_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 
 	/*  send write_enable instruction */
 	labpc_serial_out(dev, write_enable_instruction, write_length);
 	devpriv->command5_bits &= ~EEPROM_EN_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 
 	/*  send write instruction */
 	devpriv->command5_bits |= EEPROM_EN_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 	labpc_serial_out(dev, write_instruction, write_length);
 	/*  send 8 bit address to write to */
@@ -1926,12 +1926,12 @@ static unsigned int labpc_eeprom_write(struct comedi_device *dev,
 	/*  write value */
 	labpc_serial_out(dev, value, write_length);
 	devpriv->command5_bits &= ~EEPROM_EN_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 
 	/*  disable read/write to eeprom */
 	devpriv->command5_bits &= ~EEPROM_EN_BIT & ~EEPROM_WRITE_UNPROTECT_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 
 	return 0;
@@ -1945,10 +1945,10 @@ static unsigned int labpc_eeprom_read_status(struct comedi_device *dev)
 
 	/*  enable read/write to eeprom */
 	devpriv->command5_bits &= ~EEPROM_EN_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 	devpriv->command5_bits |= EEPROM_EN_BIT | EEPROM_WRITE_UNPROTECT_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 
 	/*  send read status instruction */
@@ -1958,7 +1958,7 @@ static unsigned int labpc_eeprom_read_status(struct comedi_device *dev)
 
 	/*  disable read/write to eeprom */
 	devpriv->command5_bits &= ~EEPROM_EN_BIT & ~EEPROM_WRITE_UNPROTECT_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 
 	return value;
@@ -1975,7 +1975,7 @@ static void write_caldac(struct comedi_device *dev, unsigned int channel,
 	/*  clear caldac load bit and make sure we don't write to eeprom */
 	devpriv->command5_bits &=
 		~CALDAC_LOAD_BIT & ~EEPROM_EN_BIT & ~EEPROM_WRITE_UNPROTECT_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 
 	/*  write 4 bit channel */
@@ -1985,10 +1985,10 @@ static void write_caldac(struct comedi_device *dev, unsigned int channel,
 
 	/*  set and clear caldac bit to load caldac value */
 	devpriv->command5_bits |= CALDAC_LOAD_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 	devpriv->command5_bits &= ~CALDAC_LOAD_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 }
 
diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c
index 7b0030e853c4..476f30a13d16 100644
--- a/drivers/staging/comedi/drivers/ni_mio_common.c
+++ b/drivers/staging/comedi/drivers/ni_mio_common.c
@@ -365,7 +365,7 @@ static inline void ni_set_bitfield(struct comedi_device *dev, int reg,
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->soft_reg_copy_lock, flags);
+	spin_lock_irqsave(&devpriv->soft_reg_copy_lock, flags);
 	switch (reg) {
 	case Interrupt_A_Enable_Register:
 		devpriv->int_a_enable_reg &= ~bit_mask;
@@ -396,13 +396,13 @@ static inline void ni_set_bitfield(struct comedi_device *dev, int reg,
 		ni_writeb(devpriv->g0_g1_select_reg, G0_G1_Select);
 		break;
 	default:
-		rt_printk("Warning %s() called with invalid register\n",
+		printk("Warning %s() called with invalid register\n",
 			__func__);
-		rt_printk("reg is %d\n", reg);
+		printk("reg is %d\n", reg);
 		break;
 	}
 	mmiowb();
-	comedi_spin_unlock_irqrestore(&devpriv->soft_reg_copy_lock, flags);
+	spin_unlock_irqrestore(&devpriv->soft_reg_copy_lock, flags);
 }
 
 #ifdef PCIDMA
@@ -460,7 +460,7 @@ static inline void ni_set_cdo_dma_channel(struct comedi_device *dev, int mite_ch
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->soft_reg_copy_lock, flags);
+	spin_lock_irqsave(&devpriv->soft_reg_copy_lock, flags);
 	devpriv->cdio_dma_select_reg &= ~CDO_DMA_Select_Mask;
 	if (mite_channel >= 0) {
 		/*XXX just guessing ni_stc_dma_channel_select_bitfield() returns the right bits,
@@ -472,19 +472,19 @@ static inline void ni_set_cdo_dma_channel(struct comedi_device *dev, int mite_ch
 	}
 	ni_writeb(devpriv->cdio_dma_select_reg, M_Offset_CDIO_DMA_Select);
 	mmiowb();
-	comedi_spin_unlock_irqrestore(&devpriv->soft_reg_copy_lock, flags);
+	spin_unlock_irqrestore(&devpriv->soft_reg_copy_lock, flags);
 }
 
 static int ni_request_ai_mite_channel(struct comedi_device *dev)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	BUG_ON(devpriv->ai_mite_chan);
 	devpriv->ai_mite_chan =
 		mite_request_channel(devpriv->mite, devpriv->ai_mite_ring);
 	if (devpriv->ai_mite_chan == NULL) {
-		comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock,
+		spin_unlock_irqrestore(&devpriv->mite_channel_lock,
 			flags);
 		comedi_error(dev,
 			"failed to reserve mite dma channel for analog input.");
@@ -492,7 +492,7 @@ static int ni_request_ai_mite_channel(struct comedi_device *dev)
 	}
 	devpriv->ai_mite_chan->dir = COMEDI_INPUT;
 	ni_set_ai_dma_channel(dev, devpriv->ai_mite_chan->channel);
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 	return 0;
 }
 
@@ -500,12 +500,12 @@ static int ni_request_ao_mite_channel(struct comedi_device *dev)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	BUG_ON(devpriv->ao_mite_chan);
 	devpriv->ao_mite_chan =
 		mite_request_channel(devpriv->mite, devpriv->ao_mite_ring);
 	if (devpriv->ao_mite_chan == NULL) {
-		comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock,
+		spin_unlock_irqrestore(&devpriv->mite_channel_lock,
 			flags);
 		comedi_error(dev,
 			"failed to reserve mite dma channel for analog outut.");
@@ -513,7 +513,7 @@ static int ni_request_ao_mite_channel(struct comedi_device *dev)
 	}
 	devpriv->ao_mite_chan->dir = COMEDI_OUTPUT;
 	ni_set_ao_dma_channel(dev, devpriv->ao_mite_chan->channel);
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 	return 0;
 }
 
@@ -524,13 +524,13 @@ static int ni_request_gpct_mite_channel(struct comedi_device *dev,
 	struct mite_channel *mite_chan;
 
 	BUG_ON(gpct_index >= NUM_GPCT);
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	BUG_ON(devpriv->counter_dev->counters[gpct_index].mite_chan);
 	mite_chan =
 		mite_request_channel(devpriv->mite,
 		devpriv->gpct_mite_ring[gpct_index]);
 	if (mite_chan == NULL) {
-		comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock,
+		spin_unlock_irqrestore(&devpriv->mite_channel_lock,
 			flags);
 		comedi_error(dev,
 			"failed to reserve mite dma channel for counter.");
@@ -540,7 +540,7 @@ static int ni_request_gpct_mite_channel(struct comedi_device *dev,
 	ni_tio_set_mite_channel(&devpriv->counter_dev->counters[gpct_index],
 		mite_chan);
 	ni_set_gpct_dma_channel(dev, gpct_index, mite_chan->channel);
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 	return 0;
 }
 
@@ -551,12 +551,12 @@ static int ni_request_cdo_mite_channel(struct comedi_device *dev)
 #ifdef PCIDMA
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	BUG_ON(devpriv->cdo_mite_chan);
 	devpriv->cdo_mite_chan =
 		mite_request_channel(devpriv->mite, devpriv->cdo_mite_ring);
 	if (devpriv->cdo_mite_chan == NULL) {
-		comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock,
+		spin_unlock_irqrestore(&devpriv->mite_channel_lock,
 			flags);
 		comedi_error(dev,
 			"failed to reserve mite dma channel for correlated digital outut.");
@@ -564,7 +564,7 @@ static int ni_request_cdo_mite_channel(struct comedi_device *dev)
 	}
 	devpriv->cdo_mite_chan->dir = COMEDI_OUTPUT;
 	ni_set_cdo_dma_channel(dev, devpriv->cdo_mite_chan->channel);
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 #endif /*  PCIDMA */
 	return 0;
 }
@@ -574,13 +574,13 @@ static void ni_release_ai_mite_channel(struct comedi_device *dev)
 #ifdef PCIDMA
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	if (devpriv->ai_mite_chan) {
 		ni_set_ai_dma_channel(dev, -1);
 		mite_release_channel(devpriv->ai_mite_chan);
 		devpriv->ai_mite_chan = NULL;
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 #endif /*  PCIDMA */
 }
 
@@ -589,13 +589,13 @@ static void ni_release_ao_mite_channel(struct comedi_device *dev)
 #ifdef PCIDMA
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	if (devpriv->ao_mite_chan) {
 		ni_set_ao_dma_channel(dev, -1);
 		mite_release_channel(devpriv->ao_mite_chan);
 		devpriv->ao_mite_chan = NULL;
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 #endif /*  PCIDMA */
 }
 
@@ -605,7 +605,7 @@ void ni_release_gpct_mite_channel(struct comedi_device *dev, unsigned gpct_index
 	unsigned long flags;
 
 	BUG_ON(gpct_index >= NUM_GPCT);
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	if (devpriv->counter_dev->counters[gpct_index].mite_chan) {
 		struct mite_channel *mite_chan =
 			devpriv->counter_dev->counters[gpct_index].mite_chan;
@@ -615,7 +615,7 @@ void ni_release_gpct_mite_channel(struct comedi_device *dev, unsigned gpct_index
 			counters[gpct_index], NULL);
 		mite_release_channel(mite_chan);
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 #endif /*  PCIDMA */
 }
 
@@ -624,13 +624,13 @@ static void ni_release_cdo_mite_channel(struct comedi_device *dev)
 #ifdef PCIDMA
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	if (devpriv->cdo_mite_chan) {
 		ni_set_cdo_dma_channel(dev, -1);
 		mite_release_channel(devpriv->cdo_mite_chan);
 		devpriv->cdo_mite_chan = NULL;
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 #endif /*  PCIDMA */
 }
 
@@ -712,20 +712,20 @@ static inline void ni_ao_win_outw(struct comedi_device *dev, uint16_t data, int
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->window_lock, flags);
+	spin_lock_irqsave(&devpriv->window_lock, flags);
 	ni_writew(addr, AO_Window_Address_611x);
 	ni_writew(data, AO_Window_Data_611x);
-	comedi_spin_unlock_irqrestore(&devpriv->window_lock, flags);
+	spin_unlock_irqrestore(&devpriv->window_lock, flags);
 }
 
 static inline void ni_ao_win_outl(struct comedi_device *dev, uint32_t data, int addr)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->window_lock, flags);
+	spin_lock_irqsave(&devpriv->window_lock, flags);
 	ni_writew(addr, AO_Window_Address_611x);
 	ni_writel(data, AO_Window_Data_611x);
-	comedi_spin_unlock_irqrestore(&devpriv->window_lock, flags);
+	spin_unlock_irqrestore(&devpriv->window_lock, flags);
 }
 
 static inline unsigned short ni_ao_win_inw(struct comedi_device *dev, int addr)
@@ -733,10 +733,10 @@ static inline unsigned short ni_ao_win_inw(struct comedi_device *dev, int addr)
 	unsigned long flags;
 	unsigned short data;
 
-	comedi_spin_lock_irqsave(&devpriv->window_lock, flags);
+	spin_lock_irqsave(&devpriv->window_lock, flags);
 	ni_writew(addr, AO_Window_Address_611x);
 	data = ni_readw(AO_Window_Data_611x);
-	comedi_spin_unlock_irqrestore(&devpriv->window_lock, flags);
+	spin_unlock_irqrestore(&devpriv->window_lock, flags);
 	return data;
 }
 
@@ -779,15 +779,14 @@ static irqreturn_t ni_E_interrupt(int irq, void *d)
 	smp_mb();		/*  make sure dev->attached is checked before handler does anything else. */
 
 	/*  lock to avoid race with comedi_poll */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	a_status = devpriv->stc_readw(dev, AI_Status_1_Register);
 	b_status = devpriv->stc_readw(dev, AO_Status_1_Register);
 #ifdef PCIDMA
 	if (mite) {
 		unsigned long flags_too;
 
-		comedi_spin_lock_irqsave(&devpriv->mite_channel_lock,
-			flags_too);
+		spin_lock_irqsave(&devpriv->mite_channel_lock, flags_too);
 		if (devpriv->ai_mite_chan) {
 			ai_mite_status = mite_get_status(devpriv->ai_mite_chan);
 			if (ai_mite_status & CHSR_LINKC)
@@ -804,8 +803,7 @@ static irqreturn_t ni_E_interrupt(int irq, void *d)
 					MITE_CHOR(devpriv->ao_mite_chan->
 						channel));
 		}
-		comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock,
-			flags_too);
+		spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags_too);
 	}
 #endif
 	ack_a_interrupt(dev, a_status);
@@ -818,7 +816,7 @@ static irqreturn_t ni_E_interrupt(int irq, void *d)
 	handle_gpct_interrupt(dev, 1);
 	handle_cdio_interrupt(dev);
 
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 	return IRQ_HANDLED;
 }
 
@@ -828,10 +826,10 @@ static void ni_sync_ai_dma(struct comedi_device *dev)
 	struct comedi_subdevice *s = dev->subdevices + NI_AI_SUBDEV;
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	if (devpriv->ai_mite_chan)
 		mite_sync_input_dma(devpriv->ai_mite_chan, s->async);
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 }
 
 static void mite_handle_b_linkc(struct mite_struct *mite, struct comedi_device * dev)
@@ -839,11 +837,11 @@ static void mite_handle_b_linkc(struct mite_struct *mite, struct comedi_device *
 	struct comedi_subdevice *s = dev->subdevices + NI_AO_SUBDEV;
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	if (devpriv->ao_mite_chan) {
 		mite_sync_output_dma(devpriv->ao_mite_chan, s->async);
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 }
 
 static int ni_ao_wait_for_dma_load(struct comedi_device *dev)
@@ -858,7 +856,7 @@ static int ni_ao_wait_for_dma_load(struct comedi_device *dev)
 			break;
 		/* if we poll too often, the pci bus activity seems
 		   to slow the dma transfer down */
-		comedi_udelay(10);
+		udelay(10);
 	}
 	if (i == timeout) {
 		comedi_error(dev, "timed out waiting for dma load");
@@ -879,7 +877,7 @@ static void ni_handle_eos(struct comedi_device *dev, struct comedi_subdevice *s)
 			ni_sync_ai_dma(dev);
 			if ((s->async->events & COMEDI_CB_EOS))
 				break;
-			comedi_udelay(1);
+			udelay(1);
 		}
 #else
 		ni_handle_fifo_dregs(dev);
@@ -976,7 +974,7 @@ static void handle_a_interrupt(struct comedi_device *dev, unsigned short status,
 		return;
 
 #ifdef DEBUG_INTERRUPT
-	rt_printk
+	printk
 		("ni_mio_common: interrupt: a_status=%04x ai_mite_status=%08x\n",
 		status, ai_mite_status);
 	ni_mio_print_status_a(status);
@@ -989,7 +987,7 @@ static void handle_a_interrupt(struct comedi_device *dev, unsigned short status,
 	if (ai_mite_status & ~(CHSR_INT | CHSR_LINKC | CHSR_DONE | CHSR_MRDY |
 			CHSR_DRDY | CHSR_DRQ1 | CHSR_DRQ0 | CHSR_ERROR |
 			CHSR_SABORT | CHSR_XFERR | CHSR_LxERR_mask)) {
-		rt_printk
+		printk
 			("unknown mite interrupt, ack! (ai_mite_status=%08x)\n",
 			ai_mite_status);
 		/* mite_print_chsr(ai_mite_status); */
@@ -1002,7 +1000,7 @@ static void handle_a_interrupt(struct comedi_device *dev, unsigned short status,
 	if (status & (AI_Overrun_St | AI_Overflow_St | AI_SC_TC_Error_St |
 			AI_SC_TC_St | AI_START1_St)) {
 		if (status == 0xffff) {
-			rt_printk
+			printk
 				("ni_mio_common: a_status=0xffff.  Card removed?\n");
 			/* we probably aren't even running a command now,
 			 * so it's a good idea to be careful. */
@@ -1015,7 +1013,7 @@ static void handle_a_interrupt(struct comedi_device *dev, unsigned short status,
 		}
 		if (status & (AI_Overrun_St | AI_Overflow_St |
 				AI_SC_TC_Error_St)) {
-			rt_printk("ni_mio_common: ai error a_status=%04x\n",
+			printk("ni_mio_common: ai error a_status=%04x\n",
 				status);
 			ni_mio_print_status_a(status);
 
@@ -1031,7 +1029,7 @@ static void handle_a_interrupt(struct comedi_device *dev, unsigned short status,
 		}
 		if (status & AI_SC_TC_St) {
 #ifdef DEBUG_INTERRUPT
-			rt_printk("ni_mio_common: SC_TC interrupt\n");
+			printk("ni_mio_common: SC_TC interrupt\n");
 #endif
 			if (!devpriv->ai_continuous) {
 				shutdown_ai_command(dev);
@@ -1063,7 +1061,7 @@ static void handle_a_interrupt(struct comedi_device *dev, unsigned short status,
 #ifdef DEBUG_INTERRUPT
 	status = devpriv->stc_readw(dev, AI_Status_1_Register);
 	if (status & Interrupt_A_St) {
-		rt_printk
+		printk
 			("handle_a_interrupt: didn't clear interrupt? status=0x%x\n",
 			status);
 	}
@@ -1104,7 +1102,7 @@ static void handle_b_interrupt(struct comedi_device *dev, unsigned short b_statu
 	struct comedi_subdevice *s = dev->subdevices + NI_AO_SUBDEV;
 	/* unsigned short ack=0; */
 #ifdef DEBUG_INTERRUPT
-	rt_printk("ni_mio_common: interrupt: b_status=%04x m1_status=%08x\n",
+	printk("ni_mio_common: interrupt: b_status=%04x m1_status=%08x\n",
 		b_status, ao_mite_status);
 	ni_mio_print_status_b(b_status);
 #endif
@@ -1118,7 +1116,7 @@ static void handle_b_interrupt(struct comedi_device *dev, unsigned short b_statu
 	if (ao_mite_status & ~(CHSR_INT | CHSR_LINKC | CHSR_DONE | CHSR_MRDY |
 			CHSR_DRDY | CHSR_DRQ1 | CHSR_DRQ0 | CHSR_ERROR |
 			CHSR_SABORT | CHSR_XFERR | CHSR_LxERR_mask)) {
-		rt_printk
+		printk
 			("unknown mite interrupt, ack! (ao_mite_status=%08x)\n",
 			ao_mite_status);
 		/* mite_print_chsr(ao_mite_status); */
@@ -1129,7 +1127,7 @@ static void handle_b_interrupt(struct comedi_device *dev, unsigned short b_statu
 	if (b_status == 0xffff)
 		return;
 	if (b_status & AO_Overrun_St) {
-		rt_printk
+		printk
 			("ni_mio_common: AO FIFO underrun status=0x%04x status2=0x%04x\n",
 			b_status, devpriv->stc_readw(dev,
 				AO_Status_2_Register));
@@ -1146,7 +1144,7 @@ static void handle_b_interrupt(struct comedi_device *dev, unsigned short b_statu
 
 		ret = ni_ao_fifo_half_empty(dev, s);
 		if (!ret) {
-			rt_printk("ni_mio_common: AO buffer underrun\n");
+			printk("ni_mio_common: AO buffer underrun\n");
 			ni_set_bits(dev, Interrupt_B_Enable_Register,
 				AO_FIFO_Interrupt_Enable |
 				AO_Error_Interrupt_Enable, 0);
@@ -1170,13 +1168,13 @@ static void ni_mio_print_status_a(int status)
 {
 	int i;
 
-	rt_printk("A status:");
+	printk("A status:");
 	for (i = 15; i >= 0; i--) {
 		if (status & (1 << i)) {
-			rt_printk(" %s", status_a_strings[i]);
+			printk(" %s", status_a_strings[i]);
 		}
 	}
-	rt_printk("\n");
+	printk("\n");
 }
 #endif
 
@@ -1192,13 +1190,13 @@ static void ni_mio_print_status_b(int status)
 {
 	int i;
 
-	rt_printk("B status:");
+	printk("B status:");
 	for (i = 15; i >= 0; i--) {
 		if (status & (1 << i)) {
-			rt_printk(" %s", status_b_strings[i]);
+			printk(" %s", status_b_strings[i]);
 		}
 	}
-	rt_printk("\n");
+	printk("\n");
 }
 #endif
 
@@ -1383,7 +1381,7 @@ static int ni_ai_drain_dma(struct comedi_device *dev)
 	unsigned long flags;
 	int retval = 0;
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	if (devpriv->ai_mite_chan) {
 		for (i = 0; i < timeout; i++) {
 			if ((devpriv->stc_readw(dev,
@@ -1392,19 +1390,19 @@ static int ni_ai_drain_dma(struct comedi_device *dev)
 				&& mite_bytes_in_transit(devpriv->
 					ai_mite_chan) == 0)
 				break;
-			comedi_udelay(5);
+			udelay(5);
 		}
 		if (i == timeout) {
-			rt_printk
+			printk
 				("ni_mio_common: wait for dma drain timed out\n");
-			rt_printk
+			printk
 				("mite_bytes_in_transit=%i, AI_Status1_Register=0x%x\n",
 				mite_bytes_in_transit(devpriv->ai_mite_chan),
 				devpriv->stc_readw(dev, AI_Status_1_Register));
 			retval = -1;
 		}
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 
 	ni_sync_ai_dma(dev);
 
@@ -1548,15 +1546,14 @@ static int ni_ai_setup_MITE_dma(struct comedi_device *dev)
 	retval = ni_request_ai_mite_channel(dev);
 	if (retval)
 		return retval;
-/* rt_printk("comedi_debug: using mite channel %i for ai.\n", devpriv->ai_mite_chan->channel); */
+/* printk("comedi_debug: using mite channel %i for ai.\n", devpriv->ai_mite_chan->channel); */
 
 	/* write alloc the entire buffer */
 	comedi_buf_write_alloc(s->async, s->async->prealloc_bufsz);
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
-	if (devpriv->ai_mite_chan == NULL)
-	{
-		comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	if (devpriv->ai_mite_chan == NULL) {
+		spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 		return -EIO;
 	}
 
@@ -1574,7 +1571,7 @@ static int ni_ai_setup_MITE_dma(struct comedi_device *dev)
 	};
 	/*start the MITE */
 	mite_dma_arm(devpriv->ai_mite_chan);
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 
 	return 0;
 }
@@ -1592,7 +1589,7 @@ static int ni_ao_setup_MITE_dma(struct comedi_device *dev)
 	/* read alloc the entire buffer */
 	comedi_buf_read_alloc(s->async, s->async->prealloc_bufsz);
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	if (devpriv->ao_mite_chan) {
 		if (boardtype.reg_type & (ni_reg_611x | ni_reg_6713)) {
 			mite_prep_dma(devpriv->ao_mite_chan, 32, 32);
@@ -1604,7 +1601,7 @@ static int ni_ao_setup_MITE_dma(struct comedi_device *dev)
 		mite_dma_arm(devpriv->ao_mite_chan);
 	} else
 		retval = -EIO;
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 
 	return retval;
 }
@@ -1705,7 +1702,7 @@ static int ni_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 
 	/*  lock to avoid race with interrupt handler */
 	if (in_interrupt() == 0)
-		comedi_spin_lock_irqsave(&dev->spinlock, flags);
+		spin_lock_irqsave(&dev->spinlock, flags);
 #ifndef PCIDMA
 	ni_handle_fifo_dregs(dev);
 #else
@@ -1713,7 +1710,7 @@ static int ni_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 #endif
 	count = s->async->buf_write_count - s->async->buf_read_count;
 	if (in_interrupt() == 0)
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	return count;
 }
@@ -1736,7 +1733,7 @@ static int ni_ai_insn_read(struct comedi_device *dev, struct comedi_subdevice *s
 		for (n = 0; n < num_adc_stages_611x; n++) {
 			devpriv->stc_writew(dev, AI_CONVERT_Pulse,
 				AI_Command_1_Register);
-			comedi_udelay(1);
+			udelay(1);
 		}
 		for (n = 0; n < insn->n; n++) {
 			devpriv->stc_writew(dev, AI_CONVERT_Pulse,
@@ -1758,7 +1755,7 @@ static int ni_ai_insn_read(struct comedi_device *dev, struct comedi_subdevice *s
 				}
 			}
 			if (i == NI_TIMEOUT) {
-				rt_printk
+				printk
 					("ni_mio_common: timeout in 611x ni_ai_insn_read\n");
 				return -ETIME;
 			}
@@ -1780,7 +1777,7 @@ static int ni_ai_insn_read(struct comedi_device *dev, struct comedi_subdevice *s
 				}
 			}
 			if (i == NI_TIMEOUT) {
-				rt_printk
+				printk
 					("ni_mio_common: timeout in 6143 ni_ai_insn_read\n");
 				return -ETIME;
 			}
@@ -1797,7 +1794,7 @@ static int ni_ai_insn_read(struct comedi_device *dev, struct comedi_subdevice *s
 					break;
 			}
 			if (i == NI_TIMEOUT) {
-				rt_printk
+				printk
 					("ni_mio_common: timeout in ni_ai_insn_read\n");
 				return -ETIME;
 			}
@@ -1825,9 +1822,9 @@ void ni_prime_channelgain_list(struct comedi_device *dev)
 			devpriv->stc_writew(dev, 1, ADC_FIFO_Clear);
 			return;
 		}
-		comedi_udelay(1);
+		udelay(1);
 	}
-	rt_printk("ni_mio_common: timeout loading channel/gain list\n");
+	printk("ni_mio_common: timeout loading channel/gain list\n");
 }
 
 static void ni_m_series_load_channelgain_list(struct comedi_device *dev,
@@ -2844,7 +2841,7 @@ static int ni_m_series_ao_config_chanlist(struct comedi_device *dev,
 				M_Offset_AO_Reference_Attenuation(chan));
 			break;
 		default:
-			rt_printk("%s: bug! unhandled ao reference voltage\n",
+			printk("%s: bug! unhandled ao reference voltage\n",
 				__func__);
 			break;
 		}
@@ -2856,7 +2853,7 @@ static int ni_m_series_ao_config_chanlist(struct comedi_device *dev,
 			conf |= MSeries_AO_DAC_Offset_5V_Bits;
 			break;
 		default:
-			rt_printk("%s: bug! unhandled ao offset voltage\n",
+			printk("%s: bug! unhandled ao offset voltage\n",
 				__func__);
 			break;
 		}
@@ -3033,7 +3030,7 @@ static int ni_ao_inttrig(struct comedi_device *dev, struct comedi_subdevice *s,
 	devpriv->stc_writew(dev, devpriv->ao_mode3, AO_Mode_3_Register);
 	/* wait for DACs to be loaded */
 	for (i = 0; i < timeout; i++) {
-		comedi_udelay(1);
+		udelay(1);
 		if ((devpriv->stc_readw(dev,
 					Joint_Status_2_Register) &
 				AO_TMRDACWRs_In_Progress_St) == 0)
@@ -3440,7 +3437,7 @@ static int ni_dio_insn_config(struct comedi_device *dev, struct comedi_subdevice
 	struct comedi_insn *insn, unsigned int *data)
 {
 #ifdef DEBUG_DIO
-	rt_printk("ni_dio_insn_config() chan=%d io=%d\n",
+	printk("ni_dio_insn_config() chan=%d io=%d\n",
 		CR_CHAN(insn->chanspec), data[0]);
 #endif
 	switch (data[0]) {
@@ -3472,7 +3469,7 @@ static int ni_dio_insn_bits(struct comedi_device *dev, struct comedi_subdevice *
 	struct comedi_insn *insn, unsigned int *data)
 {
 #ifdef DEBUG_DIO
-	rt_printk("ni_dio_insn_bits() mask=0x%x bits=0x%x\n", data[0], data[1]);
+	printk("ni_dio_insn_bits() mask=0x%x bits=0x%x\n", data[0], data[1]);
 #endif
 	if (insn->n != 2)
 		return -EINVAL;
@@ -3499,7 +3496,7 @@ static int ni_m_series_dio_insn_config(struct comedi_device *dev,
 	struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data)
 {
 #ifdef DEBUG_DIO
-	rt_printk("ni_m_series_dio_insn_config() chan=%d io=%d\n",
+	printk("ni_m_series_dio_insn_config() chan=%d io=%d\n",
 		CR_CHAN(insn->chanspec), data[0]);
 #endif
 	switch (data[0]) {
@@ -3529,7 +3526,7 @@ static int ni_m_series_dio_insn_bits(struct comedi_device *dev, struct comedi_su
 	struct comedi_insn *insn, unsigned int *data)
 {
 #ifdef DEBUG_DIO
-	rt_printk("ni_m_series_dio_insn_bits() mask=0x%x bits=0x%x\n", data[0],
+	printk("ni_m_series_dio_insn_bits() mask=0x%x bits=0x%x\n", data[0],
 		data[1]);
 #endif
 	if (insn->n != 2)
@@ -3706,7 +3703,7 @@ static int ni_cdo_inttrig(struct comedi_device *dev, struct comedi_subdevice *s,
 	comedi_buf_read_alloc(s->async, s->async->prealloc_bufsz);
 
 #ifdef PCIDMA
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	if (devpriv->cdo_mite_chan) {
 		mite_prep_dma(devpriv->cdo_mite_chan, 32, 32);
 		mite_dma_arm(devpriv->cdo_mite_chan);
@@ -3714,7 +3711,7 @@ static int ni_cdo_inttrig(struct comedi_device *dev, struct comedi_subdevice *s,
 		comedi_error(dev, "BUG: no cdo mite channel?");
 		retval = -EIO;
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 	if (retval < 0)
 		return retval;
 #endif
@@ -3726,7 +3723,7 @@ static int ni_cdo_inttrig(struct comedi_device *dev, struct comedi_subdevice *s,
 	for (i = 0; i < timeout; ++i) {
 		if (ni_readl(M_Offset_CDIO_Status) & CDO_FIFO_Full_Bit)
 			break;
-		comedi_udelay(10);
+		udelay(10);
 	}
 	if (i == timeout) {
 		comedi_error(dev, "dma failed to fill cdo fifo!");
@@ -3765,7 +3762,7 @@ static void handle_cdio_interrupt(struct comedi_device *dev)
 		return;
 	}
 #ifdef PCIDMA
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	if (devpriv->cdo_mite_chan) {
 		unsigned cdo_mite_status =
 			mite_get_status(devpriv->cdo_mite_chan);
@@ -3776,17 +3773,17 @@ static void handle_cdio_interrupt(struct comedi_device *dev)
 		}
 		mite_sync_output_dma(devpriv->cdo_mite_chan, s->async);
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 #endif
 
 	cdio_status = ni_readl(M_Offset_CDIO_Status);
 	if (cdio_status & (CDO_Overrun_Bit | CDO_Underflow_Bit)) {
-/* rt_printk("cdio error: statux=0x%x\n", cdio_status); */
+/* printk("cdio error: statux=0x%x\n", cdio_status); */
 		ni_writel(CDO_Error_Interrupt_Confirm_Bit, M_Offset_CDIO_Command);	/*  XXX just guessing this is needed and does something useful */
 		s->async->events |= COMEDI_CB_OVERFLOW;
 	}
 	if (cdio_status & CDO_FIFO_Empty_Bit) {
-/* rt_printk("cdio fifo empty\n"); */
+/* printk("cdio fifo empty\n"); */
 		ni_writel(CDO_Empty_FIFO_Interrupt_Enable_Clear_Bit,
 			M_Offset_CDIO_Command);
 /* s->async->events |= COMEDI_CB_EOA; */
@@ -3807,7 +3804,7 @@ static int ni_serial_insn_config(struct comedi_device *dev, struct comedi_subdev
 	case INSN_CONFIG_SERIAL_CLOCK:
 
 #ifdef DEBUG_DIO
-		rt_printk("SPI serial clock Config cd\n", data[1]);
+		printk("SPI serial clock Config cd\n", data[1]);
 #endif
 		devpriv->serial_hw_mode = 1;
 		devpriv->dio_control |= DIO_HW_Serial_Enable;
@@ -3873,7 +3870,7 @@ static int ni_serial_insn_config(struct comedi_device *dev, struct comedi_subdev
 			err = ni_serial_sw_readwrite8(dev, s, byte_out,
 				&byte_in);
 		} else {
-			rt_printk("ni_serial_insn_config: serial disabled!\n");
+			printk("ni_serial_insn_config: serial disabled!\n");
 			return -EINVAL;
 		}
 		if (err < 0)
@@ -3895,7 +3892,7 @@ static int ni_serial_hw_readwrite8(struct comedi_device *dev, struct comedi_subd
 	int err = 0, count = 20;
 
 #ifdef DEBUG_DIO
-	rt_printk("ni_serial_hw_readwrite8: outputting 0x%x\n", data_out);
+	printk("ni_serial_hw_readwrite8: outputting 0x%x\n", data_out);
 #endif
 
 	devpriv->dio_output &= ~DIO_Serial_Data_Mask;
@@ -3918,9 +3915,9 @@ static int ni_serial_hw_readwrite8(struct comedi_device *dev, struct comedi_subd
 				Joint_Status_1_Register)) &
 		DIO_Serial_IO_In_Progress_St) {
 		/* Delay one bit per loop */
-		comedi_udelay((devpriv->serial_interval_ns + 999) / 1000);
+		udelay((devpriv->serial_interval_ns + 999) / 1000);
 		if (--count < 0) {
-			rt_printk
+			printk
 				("ni_serial_hw_readwrite8: SPI serial I/O didn't finish in time!\n");
 			err = -ETIME;
 			goto Error;
@@ -3929,12 +3926,12 @@ static int ni_serial_hw_readwrite8(struct comedi_device *dev, struct comedi_subd
 
 	/* Delay for last bit. This delay is absolutely necessary, because
 	   DIO_Serial_IO_In_Progress_St goes high one bit too early. */
-	comedi_udelay((devpriv->serial_interval_ns + 999) / 1000);
+	udelay((devpriv->serial_interval_ns + 999) / 1000);
 
 	if (data_in != NULL) {
 		*data_in = devpriv->stc_readw(dev, DIO_Serial_Input_Register);
 #ifdef DEBUG_DIO
-		rt_printk("ni_serial_hw_readwrite8: inputted 0x%x\n", *data_in);
+		printk("ni_serial_hw_readwrite8: inputted 0x%x\n", *data_in);
 #endif
 	}
 
@@ -3950,11 +3947,11 @@ static int ni_serial_sw_readwrite8(struct comedi_device *dev, struct comedi_subd
 	unsigned char mask, input = 0;
 
 #ifdef DEBUG_DIO
-	rt_printk("ni_serial_sw_readwrite8: outputting 0x%x\n", data_out);
+	printk("ni_serial_sw_readwrite8: outputting 0x%x\n", data_out);
 #endif
 
 	/* Wait for one bit before transfer */
-	comedi_udelay((devpriv->serial_interval_ns + 999) / 1000);
+	udelay((devpriv->serial_interval_ns + 999) / 1000);
 
 	for (mask = 0x80; mask; mask >>= 1) {
 		/* Output current bit; note that we cannot touch s->state
@@ -3973,23 +3970,23 @@ static int ni_serial_sw_readwrite8(struct comedi_device *dev, struct comedi_subd
 		devpriv->stc_writew(dev, devpriv->dio_control,
 			DIO_Control_Register);
 
-		comedi_udelay((devpriv->serial_interval_ns + 999) / 2000);
+		udelay((devpriv->serial_interval_ns + 999) / 2000);
 
 		devpriv->dio_control &= ~DIO_Software_Serial_Control;
 		devpriv->stc_writew(dev, devpriv->dio_control,
 			DIO_Control_Register);
 
-		comedi_udelay((devpriv->serial_interval_ns + 999) / 2000);
+		udelay((devpriv->serial_interval_ns + 999) / 2000);
 
 		/* Input current bit */
 		if (devpriv->stc_readw(dev,
 				DIO_Parallel_Input_Register) & DIO_SDIN) {
-/*			rt_printk("DIO_P_I_R: 0x%x\n", devpriv->stc_readw(dev, DIO_Parallel_Input_Register)); */
+/*			printk("DIO_P_I_R: 0x%x\n", devpriv->stc_readw(dev, DIO_Parallel_Input_Register)); */
 			input |= mask;
 		}
 	}
 #ifdef DEBUG_DIO
-	rt_printk("ni_serial_sw_readwrite8: inputted 0x%x\n", input);
+	printk("ni_serial_sw_readwrite8: inputted 0x%x\n", input);
 #endif
 	if (data_in)
 		*data_in = input;
@@ -4103,7 +4100,7 @@ static unsigned ni_gpct_to_stc_register(enum ni_gpct_register reg)
 		stc_register = Interrupt_B_Enable_Register;
 		break;
 	default:
-		rt_printk("%s: unhandled register 0x%x in switch.\n",
+		printk("%s: unhandled register 0x%x in switch.\n",
 			__func__, reg);
 		BUG();
 		return 0;
@@ -4928,12 +4925,12 @@ static void ni_write_caldac(struct comedi_device *dev, int addr, int val)
 
 	for (bit = 1 << (bits - 1); bit; bit >>= 1) {
 		ni_writeb(((bit & bitstring) ? 0x02 : 0), Serial_Command);
-		comedi_udelay(1);
+		udelay(1);
 		ni_writeb(1 | ((bit & bitstring) ? 0x02 : 0), Serial_Command);
-		comedi_udelay(1);
+		udelay(1);
 	}
 	ni_writeb(loadbit, Serial_Command);
-	comedi_udelay(1);
+	udelay(1);
 	ni_writeb(0, Serial_Command);
 }
 
@@ -5229,7 +5226,7 @@ static unsigned ni_old_get_pfi_routing(struct comedi_device *dev, unsigned chan)
 		return NI_PFI_OUTPUT_G_GATE0;
 		break;
 	default:
-		rt_printk("%s: bug, unhandled case in switch.\n", __func__);
+		printk("%s: bug, unhandled case in switch.\n", __func__);
 		break;
 	}
 	return 0;
@@ -5323,7 +5320,7 @@ static void ni_rtsi_init(struct comedi_device *dev)
 	/*  Set clock mode to internal */
 	devpriv->clock_and_fout2 = MSeries_RTSI_10MHz_Bit;
 	if (ni_set_master_clock(dev, NI_MIO_INTERNAL_CLOCK, 0) < 0) {
-		rt_printk("ni_set_master_clock failed, bug?");
+		printk("ni_set_master_clock failed, bug?");
 	}
 	/*  default internal lines routing to RTSI bus lines */
 	devpriv->rtsi_trig_a_output_reg =
@@ -5395,7 +5392,7 @@ static int ni_mseries_get_pll_parameters(unsigned reference_period_ns,
 		}
 	}
 	if (best_period_picosec == 0) {
-		rt_printk("%s: bug, failed to find pll parameters\n",
+		printk("%s: bug, failed to find pll parameters\n",
 			__func__);
 		return -EIO;
 	}
@@ -5430,7 +5427,7 @@ static int ni_mseries_set_pll_master_clock(struct comedi_device *dev, unsigned s
 		period_ns = 100;
 	/*  these limits are somewhat arbitrary, but NI advertises 1 to 20MHz range so we'll use that */
 	if (period_ns < min_period_ns || period_ns > max_period_ns) {
-		rt_printk
+		printk
 			("%s: you must specify an input clock frequency between %i and %i nanosec "
 			"for the phased-lock loop.\n", __func__,
 			min_period_ns, max_period_ns);
@@ -5491,9 +5488,9 @@ static int ni_mseries_set_pll_master_clock(struct comedi_device *dev, unsigned s
 		MSeries_PLL_Divisor_Bits(freq_divider) |
 		MSeries_PLL_Multiplier_Bits(freq_multiplier);
 
-	/* rt_printk("using divider=%i, multiplier=%i for PLL. pll_control_bits = 0x%x\n",
+	/* printk("using divider=%i, multiplier=%i for PLL. pll_control_bits = 0x%x\n",
 	 * freq_divider, freq_multiplier, pll_control_bits); */
-	/* rt_printk("clock_ns=%d\n", devpriv->clock_ns); */
+	/* printk("clock_ns=%d\n", devpriv->clock_ns); */
 	ni_writew(pll_control_bits, M_Offset_PLL_Control);
 	devpriv->clock_source = source;
 	/* it seems to typically take a few hundred microseconds for PLL to lock */
@@ -5504,7 +5501,7 @@ static int ni_mseries_set_pll_master_clock(struct comedi_device *dev, unsigned s
 		udelay(1);
 	}
 	if (i == timeout) {
-		rt_printk
+		printk
 			("%s: timed out waiting for PLL to lock to reference clock source %i with period %i ns.\n",
 			__func__, source, period_ns);
 		return -ETIMEDOUT;
@@ -5541,7 +5538,7 @@ static int ni_set_master_clock(struct comedi_device *dev, unsigned source,
 					devpriv->rtsi_trig_direction_reg,
 					RTSI_Trig_Direction_Register);
 				if (period_ns == 0) {
-					rt_printk
+					printk
 						("%s: we don't handle an unspecified clock period correctly yet, returning error.\n",
 						__func__);
 					return -EINVAL;
@@ -5564,7 +5561,7 @@ static int ni_valid_rtsi_output_source(struct comedi_device *dev, unsigned chan,
 			if (source == NI_RTSI_OUTPUT_RTSI_OSC)
 				return 1;
 			else {
-				rt_printk
+				printk
 					("%s: invalid source for channel=%i, channel %i is always the RTSI clock for pre-m-series boards.\n",
 					__func__, chan,
 					old_RTSI_clock_channel);
@@ -5629,7 +5626,7 @@ static unsigned ni_get_rtsi_routing(struct comedi_device *dev, unsigned chan)
 	} else {
 		if (chan == old_RTSI_clock_channel)
 			return NI_RTSI_OUTPUT_RTSI_OSC;
-		rt_printk("%s: bug! should never get here?\n", __func__);
+		printk("%s: bug! should never get here?\n", __func__);
 		return 0;
 	}
 }
@@ -5724,7 +5721,7 @@ static int cs5529_wait_for_idle(struct comedi_device *dev)
 	}
 /* printk("looped %i times waiting for idle\n", i); */
 	if (i == timeout) {
-		rt_printk("%s: %s: timeout\n", __FILE__, __func__);
+		printk("%s: %s: timeout\n", __FILE__, __func__);
 		return -ETIME;
 	}
 	return 0;
@@ -5743,7 +5740,7 @@ static void cs5529_command(struct comedi_device *dev, unsigned short value)
 	for (i = 0; i < timeout; i++) {
 		if ((ni_ao_win_inw(dev, CAL_ADC_Status_67xx) & CSS_ADC_BUSY))
 			break;
-		comedi_udelay(1);
+		udelay(1);
 	}
 /* printk("looped %i times writing command to cs5529\n", i); */
 	if (i == timeout) {
@@ -5797,12 +5794,12 @@ static int cs5529_do_conversion(struct comedi_device *dev, unsigned short *data)
 	}
 	status = ni_ao_win_inw(dev, CAL_ADC_Status_67xx);
 	if (status & CSS_OSC_DETECT) {
-		rt_printk
+		printk
 			("ni_mio_common: cs5529 conversion error, status CSS_OSC_DETECT\n");
 		return -EIO;
 	}
 	if (status & CSS_OVERRANGE) {
-		rt_printk
+		printk
 			("ni_mio_common: cs5529 conversion error, overrange (ignoring)\n");
 	}
 	if (data) {
@@ -5859,11 +5856,11 @@ static int init_cs5529(struct comedi_device *dev)
 		comedi_error(dev, "timeout or signal in init_cs5529()\n");
 #endif
 #ifdef NI_CS5529_DEBUG
-	rt_printk("config: 0x%x\n", cs5529_config_read(dev,
+	printk("config: 0x%x\n", cs5529_config_read(dev,
 		CSCMD_CONFIG_REGISTER));
-	rt_printk("gain: 0x%x\n", cs5529_config_read(dev,
+	printk("gain: 0x%x\n", cs5529_config_read(dev,
 		CSCMD_GAIN_REGISTER));
-	rt_printk("offset: 0x%x\n", cs5529_config_read(dev,
+	printk("offset: 0x%x\n", cs5529_config_read(dev,
 		CSCMD_OFFSET_REGISTER));
 #endif
 	return 0;
diff --git a/drivers/staging/comedi/drivers/ni_mio_cs.c b/drivers/staging/comedi/drivers/ni_mio_cs.c
index fe6af0aa3dc7..4d408d410c24 100644
--- a/drivers/staging/comedi/drivers/ni_mio_cs.c
+++ b/drivers/staging/comedi/drivers/ni_mio_cs.c
@@ -200,14 +200,14 @@ static void mio_cs_win_out(struct comedi_device *dev, uint16_t data, int addr)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->window_lock, flags);
+	spin_lock_irqsave(&devpriv->window_lock, flags);
 	if (addr < 8) {
 		ni_writew(data, addr * 2);
 	} else {
 		ni_writew(addr, Window_Address);
 		ni_writew(data, Window_Data);
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->window_lock, flags);
+	spin_unlock_irqrestore(&devpriv->window_lock, flags);
 }
 
 static uint16_t mio_cs_win_in(struct comedi_device *dev, int addr)
@@ -215,14 +215,14 @@ static uint16_t mio_cs_win_in(struct comedi_device *dev, int addr)
 	unsigned long flags;
 	uint16_t ret;
 
-	comedi_spin_lock_irqsave(&devpriv->window_lock, flags);
+	spin_lock_irqsave(&devpriv->window_lock, flags);
 	if (addr < 8) {
 		ret = ni_readw(addr * 2);
 	} else {
 		ni_writew(addr, Window_Address);
 		ret = ni_readw(Window_Data);
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->window_lock, flags);
+	spin_unlock_irqrestore(&devpriv->window_lock, flags);
 
 	return ret;
 }
@@ -249,7 +249,7 @@ static int mio_cs_detach(struct comedi_device *dev)
 	/* PCMCIA layer frees the IO region */
 
 	if (dev->irq) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 
 	return 0;
@@ -446,7 +446,7 @@ static int mio_cs_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	printk(" %s", boardtype.name);
 	dev->board_name = boardtype.name;
 
-	ret = comedi_request_irq(irq, ni_E_interrupt, NI_E_IRQ_FLAGS,
+	ret = request_irq(irq, ni_E_interrupt, NI_E_IRQ_FLAGS,
 				 "ni_mio_cs", dev);
 	if (ret < 0) {
 		printk(" irq not available\n");
diff --git a/drivers/staging/comedi/drivers/ni_pcidio.c b/drivers/staging/comedi/drivers/ni_pcidio.c
index 1d262c132d05..cbc203fd066f 100644
--- a/drivers/staging/comedi/drivers/ni_pcidio.c
+++ b/drivers/staging/comedi/drivers/ni_pcidio.c
@@ -422,14 +422,13 @@ static int ni_pcidio_request_di_mite_channel(struct comedi_device *dev)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	BUG_ON(devpriv->di_mite_chan);
 	devpriv->di_mite_chan =
 		mite_request_channel_in_range(devpriv->mite,
 		devpriv->di_mite_ring, 1, 2);
 	if (devpriv->di_mite_chan == NULL) {
-		comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock,
-			flags);
+		spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 		comedi_error(dev, "failed to reserve mite dma channel.");
 		return -EBUSY;
 	}
@@ -437,7 +436,7 @@ static int ni_pcidio_request_di_mite_channel(struct comedi_device *dev)
 		secondary_DMAChannel_bits(devpriv->di_mite_chan->channel),
 		devpriv->mite->daq_io_addr + DMA_Line_Control_Group1);
 	mmiowb();
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 	return 0;
 }
 
@@ -445,7 +444,7 @@ static void ni_pcidio_release_di_mite_channel(struct comedi_device *dev)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	if (devpriv->di_mite_chan) {
 		mite_dma_disarm(devpriv->di_mite_chan);
 		mite_dma_reset(devpriv->di_mite_chan);
@@ -456,7 +455,7 @@ static void ni_pcidio_release_di_mite_channel(struct comedi_device *dev)
 			devpriv->mite->daq_io_addr + DMA_Line_Control_Group1);
 		mmiowb();
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 }
 
 static int nidio96_8255_cb(int dir, int port, int data, unsigned long iobase)
@@ -514,7 +513,7 @@ static irqreturn_t nidio_interrupt(int irq, void *d)
 	/* printk("buf[0]=%08x\n",*(unsigned int *)async->prealloc_buf); */
 	/* printk("buf[4096]=%08x\n",*(unsigned int *)(async->prealloc_buf+4096)); */
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, irq_flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, irq_flags);
 	if (devpriv->di_mite_chan)
 		m_status = mite_get_status(devpriv->di_mite_chan);
 #ifdef MITE_DEBUG
@@ -537,7 +536,7 @@ static irqreturn_t nidio_interrupt(int irq, void *d)
 			disable_irq(dev->irq);
 		}
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, irq_flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, irq_flags);
 
 	while (status & DataLeft) {
 		work++;
@@ -1235,8 +1234,8 @@ static int nidio_attach(struct comedi_device * dev, struct comedi_devconfig * it
 			devpriv->mite->daq_io_addr +
 			Master_DMA_And_Interrupt_Control);
 
-		ret = comedi_request_irq(irq, nidio_interrupt, IRQF_SHARED,
-			"ni_pcidio", dev);
+		ret = request_irq(irq, nidio_interrupt, IRQF_SHARED,
+				  "ni_pcidio", dev);
 		if (ret < 0) {
 			printk(" irq not available");
 		}
@@ -1259,7 +1258,7 @@ static int nidio_detach(struct comedi_device * dev)
 	}
 
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	if (devpriv) {
 		if (devpriv->di_mite_ring) {
diff --git a/drivers/staging/comedi/drivers/ni_pcimio.c b/drivers/staging/comedi/drivers/ni_pcimio.c
index 17fcdce6657d..1d04b75dec22 100644
--- a/drivers/staging/comedi/drivers/ni_pcimio.c
+++ b/drivers/staging/comedi/drivers/ni_pcimio.c
@@ -101,7 +101,7 @@ Bugs:
 
 	need to slow down DAC loading.  I don't trust NI's claim that
 	two writes to the PCI bus slows IO enough.  I would prefer to
-	use comedi_udelay().  Timing specs: (clock)
+	use udelay().  Timing specs: (clock)
 		AD8522		30ns
 		DAC8043		120ns
 		DAC8800		60ns
@@ -1246,10 +1246,10 @@ static void e_series_win_out(struct comedi_device *dev, uint16_t data, int reg)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->window_lock, flags);
+	spin_lock_irqsave(&devpriv->window_lock, flags);
 	ni_writew(reg, Window_Address);
 	ni_writew(data, Window_Data);
-	comedi_spin_unlock_irqrestore(&devpriv->window_lock, flags);
+	spin_unlock_irqrestore(&devpriv->window_lock, flags);
 }
 
 static uint16_t e_series_win_in(struct comedi_device *dev, int reg)
@@ -1257,10 +1257,10 @@ static uint16_t e_series_win_in(struct comedi_device *dev, int reg)
 	unsigned long flags;
 	uint16_t ret;
 
-	comedi_spin_lock_irqsave(&devpriv->window_lock, flags);
+	spin_lock_irqsave(&devpriv->window_lock, flags);
 	ni_writew(reg, Window_Address);
 	ret = ni_readw(Window_Data);
-	comedi_spin_unlock_irqrestore(&devpriv->window_lock, flags);
+	spin_unlock_irqrestore(&devpriv->window_lock, flags);
 
 	return ret;
 }
@@ -1349,7 +1349,7 @@ static void m_series_stc_writew(struct comedi_device *dev, uint16_t data, int re
 		offset = M_Offset_AO_FIFO_Clear;
 		break;
 	case DIO_Control_Register:
-		rt_printk
+		printk
 			("%s: FIXME: register 0x%x does not map cleanly on to m-series boards.\n",
 			__func__, reg);
 		return;
@@ -1411,7 +1411,7 @@ static void m_series_stc_writew(struct comedi_device *dev, uint16_t data, int re
 		/* FIXME: DIO_Output_Register (16 bit reg) is replaced by M_Offset_Static_Digital_Output (32 bit)
 		   and M_Offset_SCXI_Serial_Data_Out (8 bit) */
 	default:
-		rt_printk("%s: bug! unhandled register=0x%x in switch.\n",
+		printk("%s: bug! unhandled register=0x%x in switch.\n",
 			__func__, reg);
 		BUG();
 		return;
@@ -1446,7 +1446,7 @@ static uint16_t m_series_stc_readw(struct comedi_device *dev, int reg)
 		offset = M_Offset_G01_Status;
 		break;
 	default:
-		rt_printk("%s: bug! unhandled register=0x%x in switch.\n",
+		printk("%s: bug! unhandled register=0x%x in switch.\n",
 			__func__, reg);
 		BUG();
 		return 0;
@@ -1487,7 +1487,7 @@ static void m_series_stc_writel(struct comedi_device *dev, uint32_t data, int re
 		offset = M_Offset_G1_Load_B;
 		break;
 	default:
-		rt_printk("%s: bug! unhandled register=0x%x in switch.\n",
+		printk("%s: bug! unhandled register=0x%x in switch.\n",
 			__func__, reg);
 		BUG();
 		return;
@@ -1513,7 +1513,7 @@ static uint32_t m_series_stc_readl(struct comedi_device *dev, int reg)
 		offset = M_Offset_G1_Save;
 		break;
 	default:
-		rt_printk("%s: bug! unhandled register=0x%x in switch.\n",
+		printk("%s: bug! unhandled register=0x%x in switch.\n",
 			__func__, reg);
 		BUG();
 		return 0;
@@ -1602,7 +1602,7 @@ static int pcimio_detach(struct comedi_device *dev)
 {
 	mio_common_detach(dev);
 	if (dev->irq) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 	if (dev->private) {
 		mite_free_ring(devpriv->ai_mite_ring);
@@ -1679,9 +1679,8 @@ static int pcimio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		printk(" unknown irq (bad)\n");
 	} else {
 		printk(" ( irq = %u )", dev->irq);
-		ret = comedi_request_irq(dev->irq, ni_E_interrupt,
-					 NI_E_IRQ_FLAGS, DRV_NAME,
-					 dev);
+		ret = request_irq(dev->irq, ni_E_interrupt, NI_E_IRQ_FLAGS,
+				  DRV_NAME, dev);
 		if (ret < 0) {
 			printk(" irq not available\n");
 			dev->irq = 0;
diff --git a/drivers/staging/comedi/drivers/ni_stc.h b/drivers/staging/comedi/drivers/ni_stc.h
index f97b18181534..fcaedb346c44 100644
--- a/drivers/staging/comedi/drivers/ni_stc.h
+++ b/drivers/staging/comedi/drivers/ni_stc.h
@@ -339,7 +339,7 @@ static inline unsigned RTSI_Output_Bit(unsigned channel, int is_mseries)
 		max_channel = 6;
 	}
 	if (channel > max_channel) {
-		rt_printk("%s: bug, invalid RTSI_channel=%i\n", __func__,
+		printk("%s: bug, invalid RTSI_channel=%i\n", __func__,
 			channel);
 		return 0;
 	}
@@ -1085,7 +1085,7 @@ static inline int M_Offset_Static_AI_Control(int i)
 		0x263,
 	};
 	if (((unsigned)i) >= ARRAY_SIZE(offset)) {
-		rt_printk("%s: invalid channel=%i\n", __func__, i);
+		printk("%s: invalid channel=%i\n", __func__, i);
 		return offset[0];
 	}
 	return offset[i];
@@ -1099,7 +1099,7 @@ static inline int M_Offset_AO_Reference_Attenuation(int channel)
 		0x267
 	};
 	if (((unsigned)channel) >= ARRAY_SIZE(offset)) {
-		rt_printk("%s: invalid channel=%i\n", __func__, channel);
+		printk("%s: invalid channel=%i\n", __func__, channel);
 		return offset[0];
 	}
 	return offset[channel];
@@ -1107,7 +1107,7 @@ static inline int M_Offset_AO_Reference_Attenuation(int channel)
 static inline unsigned M_Offset_PFI_Output_Select(unsigned n)
 {
 	if (n < 1 || n > NUM_PFI_OUTPUT_SELECT_REGS) {
-		rt_printk("%s: invalid pfi output select register=%i\n",
+		printk("%s: invalid pfi output select register=%i\n",
 			__func__, n);
 		return M_Offset_PFI_Output_Select_1;
 	}
@@ -1162,7 +1162,7 @@ static inline unsigned MSeries_PLL_In_Source_Select_RTSI_Bits(unsigned
 	RTSI_channel)
 {
 	if (RTSI_channel > 7) {
-		rt_printk("%s: bug, invalid RTSI_channel=%i\n", __func__,
+		printk("%s: bug, invalid RTSI_channel=%i\n", __func__,
 			RTSI_channel);
 		return 0;
 	}
@@ -1183,7 +1183,7 @@ static inline unsigned MSeries_PLL_Divisor_Bits(unsigned divisor)
 {
 	static const unsigned max_divisor = 0x10;
 	if (divisor < 1 || divisor > max_divisor) {
-		rt_printk("%s: bug, invalid divisor=%i\n", __func__,
+		printk("%s: bug, invalid divisor=%i\n", __func__,
 			divisor);
 		return 0;
 	}
@@ -1193,7 +1193,7 @@ static inline unsigned MSeries_PLL_Multiplier_Bits(unsigned multiplier)
 {
 	static const unsigned max_multiplier = 0x100;
 	if (multiplier < 1 || multiplier > max_multiplier) {
-		rt_printk("%s: bug, invalid multiplier=%i\n", __func__,
+		printk("%s: bug, invalid multiplier=%i\n", __func__,
 			multiplier);
 		return 0;
 	}
diff --git a/drivers/staging/comedi/drivers/ni_tio.c b/drivers/staging/comedi/drivers/ni_tio.c
index 2b0441e646dd..785553d0cc9d 100644
--- a/drivers/staging/comedi/drivers/ni_tio.c
+++ b/drivers/staging/comedi/drivers/ni_tio.c
@@ -669,7 +669,7 @@ static unsigned ni_m_series_source_select_bits(unsigned int clock_source)
 		}
 		if (i <= ni_m_series_max_pfi_channel)
 			break;
-		rt_printk("invalid clock source 0x%lx\n",
+		printk("invalid clock source 0x%lx\n",
 			(unsigned long)clock_source);
 		BUG();
 		ni_m_series_clock = 0;
@@ -1273,7 +1273,7 @@ static int ni_tio_set_other_src(struct ni_gpct *counter, unsigned index,
 		counter_dev->regs[abz_reg] &= ~mask;
 		counter_dev->regs[abz_reg] |= (source << shift) & mask;
 		write_register(counter, counter_dev->regs[abz_reg], abz_reg);
-/* rt_printk("%s %x %d %d\n", __func__, counter_dev->regs[abz_reg], index, source); */
+/* printk("%s %x %d %d\n", __func__, counter_dev->regs[abz_reg], index, source); */
 		return 0;
 	}
 	return -EINVAL;
diff --git a/drivers/staging/comedi/drivers/ni_tio_internal.h b/drivers/staging/comedi/drivers/ni_tio_internal.h
index 850e1ea3ad9f..920dd221da0d 100644
--- a/drivers/staging/comedi/drivers/ni_tio_internal.h
+++ b/drivers/staging/comedi/drivers/ni_tio_internal.h
@@ -728,14 +728,14 @@ static inline void ni_tio_set_bits_transient(struct ni_gpct *counter,
 	unsigned long flags;
 
 	BUG_ON(register_index >= NITIO_Num_Registers);
-	comedi_spin_lock_irqsave(&counter_dev->regs_lock, flags);
+	spin_lock_irqsave(&counter_dev->regs_lock, flags);
 	counter_dev->regs[register_index] &= ~bit_mask;
 	counter_dev->regs[register_index] |= (bit_values & bit_mask);
 	write_register(counter,
 		counter_dev->regs[register_index] | transient_bit_values,
 		register_index);
 	mmiowb();
-	comedi_spin_unlock_irqrestore(&counter_dev->regs_lock, flags);
+	spin_unlock_irqrestore(&counter_dev->regs_lock, flags);
 }
 
 /* ni_tio_set_bits( ) is for safely writing to registers whose bits may be
@@ -761,9 +761,9 @@ static inline unsigned ni_tio_get_soft_copy(const struct ni_gpct *counter,
 	unsigned value;
 
 	BUG_ON(register_index >= NITIO_Num_Registers);
-	comedi_spin_lock_irqsave(&counter_dev->regs_lock, flags);
+	spin_lock_irqsave(&counter_dev->regs_lock, flags);
 	value = counter_dev->regs[register_index];
-	comedi_spin_unlock_irqrestore(&counter_dev->regs_lock, flags);
+	spin_unlock_irqrestore(&counter_dev->regs_lock, flags);
 	return value;
 }
 
diff --git a/drivers/staging/comedi/drivers/ni_tiocmd.c b/drivers/staging/comedi/drivers/ni_tiocmd.c
index fcf4eb6cdf60..5be1e1a62c0a 100644
--- a/drivers/staging/comedi/drivers/ni_tiocmd.c
+++ b/drivers/staging/comedi/drivers/ni_tiocmd.c
@@ -107,12 +107,12 @@ static int ni_tio_input_inttrig(struct comedi_device *dev, struct comedi_subdevi
 	if (trignum != 0)
 		return -EINVAL;
 
-	comedi_spin_lock_irqsave(&counter->lock, flags);
+	spin_lock_irqsave(&counter->lock, flags);
 	if (counter->mite_chan)
 		mite_dma_arm(counter->mite_chan);
 	else
 		retval = -EIO;
-	comedi_spin_unlock_irqrestore(&counter->lock, flags);
+	spin_unlock_irqrestore(&counter->lock, flags);
 	if (retval < 0)
 		return retval;
 	retval = ni_tio_arm(counter, 1, NI_GPCT_ARM_IMMEDIATE);
@@ -171,7 +171,7 @@ static int ni_tio_input_cmd(struct ni_gpct *counter, struct comedi_async *async)
 
 static int ni_tio_output_cmd(struct ni_gpct *counter, struct comedi_async *async)
 {
-	rt_printk("ni_tio: output commands not yet implemented.\n");
+	printk("ni_tio: output commands not yet implemented.\n");
 	return -ENOTSUPP;
 
 	counter->mite_chan->dir = COMEDI_OUTPUT;
@@ -213,9 +213,9 @@ int ni_tio_cmd(struct ni_gpct *counter, struct comedi_async *async)
 	int retval = 0;
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&counter->lock, flags);
+	spin_lock_irqsave(&counter->lock, flags);
 	if (counter->mite_chan == NULL) {
-		rt_printk
+		printk
 			("ni_tio: commands only supported with DMA.  Interrupt-driven commands not yet implemented.\n");
 		retval = -EIO;
 	} else {
@@ -228,7 +228,7 @@ int ni_tio_cmd(struct ni_gpct *counter, struct comedi_async *async)
 			}
 		}
 	}
-	comedi_spin_unlock_irqrestore(&counter->lock, flags);
+	spin_unlock_irqrestore(&counter->lock, flags);
 	return retval;
 }
 
@@ -342,11 +342,11 @@ int ni_tio_cancel(struct ni_gpct *counter)
 	unsigned long flags;
 
 	ni_tio_arm(counter, 0, 0);
-	comedi_spin_lock_irqsave(&counter->lock, flags);
+	spin_lock_irqsave(&counter->lock, flags);
 	if (counter->mite_chan) {
 		mite_dma_disarm(counter->mite_chan);
 	}
-	comedi_spin_unlock_irqrestore(&counter->lock, flags);
+	spin_unlock_irqrestore(&counter->lock, flags);
 	ni_tio_configure_dma(counter, 0, 0);
 
 	ni_tio_set_bits(counter,
@@ -369,7 +369,7 @@ static int should_ack_gate(struct ni_gpct *counter)
 		return 1;
 		break;
 	case ni_gpct_variant_e_series:
-		comedi_spin_lock_irqsave(&counter->lock, flags);
+		spin_lock_irqsave(&counter->lock, flags);
 		{
 			if (counter->mite_chan == NULL ||
 				counter->mite_chan->dir != COMEDI_INPUT ||
@@ -377,7 +377,7 @@ static int should_ack_gate(struct ni_gpct *counter)
 				retval = 1;
 			}
 		}
-		comedi_spin_unlock_irqrestore(&counter->lock, flags);
+		spin_unlock_irqrestore(&counter->lock, flags);
 		break;
 	}
 	return retval;
@@ -439,7 +439,7 @@ void ni_tio_acknowledge_and_confirm(struct ni_gpct *counter, int *gate_error,
 				NITIO_Gxx_Joint_Status2_Reg(counter->
 					counter_index)) &
 			Gi_Permanent_Stale_Bit(counter->counter_index)) {
-			rt_printk("%s: Gi_Permanent_Stale_Data detected.\n",
+			printk("%s: Gi_Permanent_Stale_Data detected.\n",
 				__FUNCTION__);
 			if (perm_stale_data)
 				*perm_stale_data = 1;
@@ -458,7 +458,7 @@ void ni_tio_handle_interrupt(struct ni_gpct *counter, struct comedi_subdevice *
 	ni_tio_acknowledge_and_confirm(counter, &gate_error, &tc_error,
 		&perm_stale_data, NULL);
 	if (gate_error) {
-		rt_printk("%s: Gi_Gate_Error detected.\n", __FUNCTION__);
+		printk("%s: Gi_Gate_Error detected.\n", __FUNCTION__);
 		s->async->events |= COMEDI_CB_OVERFLOW;
 	}
 	if (perm_stale_data) {
@@ -470,16 +470,16 @@ void ni_tio_handle_interrupt(struct ni_gpct *counter, struct comedi_subdevice *
 		if (read_register(counter,
 				NITIO_Gi_DMA_Status_Reg(counter->
 					counter_index)) & Gi_DRQ_Error_Bit) {
-			rt_printk("%s: Gi_DRQ_Error detected.\n", __FUNCTION__);
+			printk("%s: Gi_DRQ_Error detected.\n", __FUNCTION__);
 			s->async->events |= COMEDI_CB_OVERFLOW;
 		}
 		break;
 	case ni_gpct_variant_e_series:
 		break;
 	}
-	comedi_spin_lock_irqsave(&counter->lock, flags);
+	spin_lock_irqsave(&counter->lock, flags);
 	if (counter->mite_chan == NULL) {
-		comedi_spin_unlock_irqrestore(&counter->lock, flags);
+		spin_unlock_irqrestore(&counter->lock, flags);
 		return;
 	}
 	gpct_mite_status = mite_get_status(counter->mite_chan);
@@ -489,7 +489,7 @@ void ni_tio_handle_interrupt(struct ni_gpct *counter, struct comedi_subdevice *
 			MITE_CHOR(counter->mite_chan->channel));
 	}
 	mite_sync_input_dma(counter->mite_chan, s->async);
-	comedi_spin_unlock_irqrestore(&counter->lock, flags);
+	spin_unlock_irqrestore(&counter->lock, flags);
 }
 
 void ni_tio_set_mite_channel(struct ni_gpct *counter,
@@ -497,9 +497,9 @@ void ni_tio_set_mite_channel(struct ni_gpct *counter,
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&counter->lock, flags);
+	spin_lock_irqsave(&counter->lock, flags);
 	counter->mite_chan = mite_chan;
-	comedi_spin_unlock_irqrestore(&counter->lock, flags);
+	spin_unlock_irqrestore(&counter->lock, flags);
 }
 
 static int __init ni_tiocmd_init_module(void)
diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index c5bcd641aa13..01faaf95d199 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -269,9 +269,9 @@ static int pcl711_ai_insn(struct comedi_device *dev, struct comedi_subdevice *s,
 			hi = inb(dev->iobase + PCL711_AD_HI);
 			if (!(hi & PCL711_DRDY))
 				goto ok;
-			comedi_udelay(1);
+			udelay(1);
 		}
-		rt_printk("comedi%d: pcl711: A/D timeout\n", dev->minor);
+		printk("comedi%d: pcl711: A/D timeout\n", dev->minor);
 		return -ETIME;
 
 	      ok:
@@ -503,7 +503,7 @@ static int pcl711_detach(struct comedi_device *dev)
 	printk("comedi%d: pcl711: remove\n", dev->minor);
 
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	if (dev->iobase)
 		release_region(dev->iobase, PCL711_SIZE);
@@ -541,7 +541,7 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		return -EINVAL;
 	}
 	if (irq) {
-		if (comedi_request_irq(irq, pcl711_interrupt, 0, "pcl711", dev)) {
+		if (request_irq(irq, pcl711_interrupt, 0, "pcl711", dev)) {
 			printk("unable to allocate irq %u\n", irq);
 			return -EINVAL;
 		} else {
diff --git a/drivers/staging/comedi/drivers/pcl724.c b/drivers/staging/comedi/drivers/pcl724.c
index b970d3d19144..699daff3035a 100644
--- a/drivers/staging/comedi/drivers/pcl724.c
+++ b/drivers/staging/comedi/drivers/pcl724.c
@@ -155,19 +155,18 @@ static int pcl724_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		irq = it->options[1];
 		if (irq) {	/* we want to use IRQ */
 			if (((1 << irq) & this_board->IRQbits) == 0) {
-				rt_printk
+				printk
 					(", IRQ %u is out of allowed range, DISABLING IT",
 					irq);
 				irq = 0;	/* Bad IRQ */
 			} else {
-				if (comedi_request_irq(irq, interrupt_pcl724, 0,
-						"pcl724", dev)) {
-					rt_printk
+				if (request_irq(irq, interrupt_pcl724, 0, "pcl724", dev)) {
+					printk
 						(", unable to allocate IRQ %u, DISABLING IT",
 						irq);
 					irq = 0;	/* Can't use IRQ */
 				} else {
-					rt_printk(", irq=%u", irq);
+					printk(", irq=%u", irq);
 				}
 			}
 		}
@@ -213,7 +212,7 @@ static int pcl724_detach(struct comedi_device *dev)
 
 #ifdef PCL724_IRQ
 	if (dev->irq) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 #endif
 
diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
index c3ce26b8d793..149e75f0e09c 100644
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ b/drivers/staging/comedi/drivers/pcl726.c
@@ -280,19 +280,19 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		devpriv->first_chan = 2;
 		if (irq) {	/* we want to use IRQ */
 			if (((1 << irq) & boardtypes[board].IRQbits) == 0) {
-				rt_printk
+				printk
 					(", IRQ %d is out of allowed range, DISABLING IT",
 					irq);
 				irq = 0;	/* Bad IRQ */
 			} else {
-				if (comedi_request_irq(irq, interrupt_pcl818, 0,
+				if (request_irq(irq, interrupt_pcl818, 0,
 						"pcl726", dev)) {
-					rt_printk
+					printk
 						(", unable to allocate IRQ %d, DISABLING IT",
 						irq);
 					irq = 0;	/* Can't use IRQ */
 				} else {
-					rt_printk(", irq=%d", irq);
+					printk(", irq=%d", irq);
 				}
 			}
 		}
@@ -368,7 +368,7 @@ static int pcl726_detach(struct comedi_device *dev)
 
 #ifdef ACL6126_IRQ
 	if (dev->irq) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 #endif
 
diff --git a/drivers/staging/comedi/drivers/pcl812.c b/drivers/staging/comedi/drivers/pcl812.c
index 3812c2a9cb9d..46fad0393e31 100644
--- a/drivers/staging/comedi/drivers/pcl812.c
+++ b/drivers/staging/comedi/drivers/pcl812.c
@@ -447,15 +447,15 @@ static int pcl812_ai_insn_read(struct comedi_device *dev, struct comedi_subdevic
 	setup_range_channel(dev, s, insn->chanspec, 1);	/*  select channel and renge */
 	for (n = 0; n < insn->n; n++) {
 		outb(255, dev->iobase + PCL812_SOFTTRIG);	/* start conversion */
-		comedi_udelay(5);
+		udelay(5);
 		timeout = 50;	/* wait max 50us, it must finish under 33us */
 		while (timeout--) {
 			hi = inb(dev->iobase + PCL812_AD_HI);
 			if (!(hi & PCL812_DRDY))
 				goto conv_finish;
-			comedi_udelay(1);
+			udelay(1);
 		}
-		rt_printk
+		printk
 			("comedi%d: pcl812: (%s at 0x%lx) A/D insn read timeout\n",
 			dev->minor, dev->board_name, dev->iobase);
 		outb(devpriv->mode_reg_int | 0, dev->iobase + PCL812_MODE);
@@ -481,14 +481,14 @@ static int acl8216_ai_insn_read(struct comedi_device *dev, struct comedi_subdevi
 	setup_range_channel(dev, s, insn->chanspec, 1);	/*  select channel and renge */
 	for (n = 0; n < insn->n; n++) {
 		outb(255, dev->iobase + PCL812_SOFTTRIG);	/* start conversion */
-		comedi_udelay(5);
+		udelay(5);
 		timeout = 50;	/* wait max 50us, it must finish under 33us */
 		while (timeout--) {
 			if (!(inb(dev->iobase + ACL8216_STATUS) & ACL8216_DRDY))
 				goto conv_finish;
-			comedi_udelay(1);
+			udelay(1);
 		}
-		rt_printk
+		printk
 			("comedi%d: pcl812: (%s at 0x%lx) A/D insn read timeout\n",
 			dev->minor, dev->board_name, dev->iobase);
 		outb(0, dev->iobase + PCL812_MODE);
@@ -581,13 +581,13 @@ static int pcl812_do_insn_bits(struct comedi_device *dev, struct comedi_subdevic
 */
 static void pcl812_cmdtest_out(int e, struct comedi_cmd *cmd)
 {
-	rt_printk("pcl812 e=%d startsrc=%x scansrc=%x convsrc=%x\n", e,
+	printk("pcl812 e=%d startsrc=%x scansrc=%x convsrc=%x\n", e,
 		cmd->start_src, cmd->scan_begin_src, cmd->convert_src);
-	rt_printk("pcl812 e=%d startarg=%d scanarg=%d convarg=%d\n", e,
+	printk("pcl812 e=%d startarg=%d scanarg=%d convarg=%d\n", e,
 		cmd->start_arg, cmd->scan_begin_arg, cmd->convert_arg);
-	rt_printk("pcl812 e=%d stopsrc=%x scanend=%x\n", e, cmd->stop_src,
+	printk("pcl812 e=%d stopsrc=%x scanend=%x\n", e, cmd->stop_src,
 		cmd->scan_end_src);
-	rt_printk("pcl812 e=%d stoparg=%d scanendarg=%d chanlistlen=%d\n", e,
+	printk("pcl812 e=%d stoparg=%d scanendarg=%d chanlistlen=%d\n", e,
 		cmd->stop_arg, cmd->scan_end_arg, cmd->chanlist_len);
 }
 #endif
@@ -602,7 +602,7 @@ static int pcl812_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice
 	int tmp, divisor1, divisor2;
 
 #ifdef PCL812_EXTDEBUG
-	rt_printk("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...)\n");
+	printk("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...)\n");
 	pcl812_cmdtest_out(-1, cmd);
 #endif
 	/* step 1: make sure trigger sources are trivially valid */
@@ -639,7 +639,7 @@ static int pcl812_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice
 	if (err) {
 #ifdef PCL812_EXTDEBUG
 		pcl812_cmdtest_out(1, cmd);
-		rt_printk
+		printk
 			("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...) err=%d ret=1\n",
 			err);
 #endif
@@ -681,7 +681,7 @@ static int pcl812_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice
 	if (err) {
 #ifdef PCL812_EXTDEBUG
 		pcl812_cmdtest_out(2, cmd);
-		rt_printk
+		printk
 			("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...) err=%d ret=2\n",
 			err);
 #endif
@@ -739,7 +739,7 @@ static int pcl812_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice
 	if (err) {
 #ifdef PCL812_EXTDEBUG
 		pcl812_cmdtest_out(3, cmd);
-		rt_printk
+		printk
 			("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...) err=%d ret=3\n",
 			err);
 #endif
@@ -761,7 +761,7 @@ static int pcl812_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice
 
 	if (err) {
 #ifdef PCL812_EXTDEBUG
-		rt_printk
+		printk
 			("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...) err=%d ret=4\n",
 			err);
 #endif
@@ -780,7 +780,7 @@ static int pcl812_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	struct comedi_cmd *cmd = &s->async->cmd;
 
 #ifdef PCL812_EXTDEBUG
-	rt_printk("pcl812 EDBG: BGN: pcl812_ai_cmd(...)\n");
+	printk("pcl812 EDBG: BGN: pcl812_ai_cmd(...)\n");
 #endif
 
 	if (cmd->start_src != TRIG_NOW)
@@ -892,7 +892,7 @@ static int pcl812_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		release_dma_lock(dma_flags);
 		enable_dma(devpriv->dma);
 #ifdef PCL812_EXTDEBUG
-		rt_printk
+		printk
 			("pcl812 EDBG:   DMA %d PTR 0x%0x/0x%0x LEN %u/%u EOS %d\n",
 			devpriv->dma, devpriv->hwdmaptr[0],
 			devpriv->hwdmaptr[1], devpriv->dmabytestomove[0],
@@ -913,7 +913,7 @@ static int pcl812_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	}
 
 #ifdef PCL812_EXTDEBUG
-	rt_printk("pcl812 EDBG: END: pcl812_ai_cmd(...)\n");
+	printk("pcl812 EDBG: END: pcl812_ai_cmd(...)\n");
 #endif
 
 	return 0;
@@ -939,7 +939,7 @@ static irqreturn_t interrupt_pcl812_ai_int(int irq, void *d)
 				err = 0;
 				break;
 			}
-			comedi_udelay(1);
+			udelay(1);
 		}
 	} else {
 		mask = 0x0fff;
@@ -948,12 +948,12 @@ static irqreturn_t interrupt_pcl812_ai_int(int irq, void *d)
 				err = 0;
 				break;
 			}
-			comedi_udelay(1);
+			udelay(1);
 		}
 	}
 
 	if (err) {
-		rt_printk
+		printk
 			("comedi%d: pcl812: (%s at 0x%lx) A/D cmd IRQ without DRDY!\n",
 			dev->minor, dev->board_name, dev->iobase);
 		pcl812_ai_cancel(dev, s);
@@ -1019,7 +1019,7 @@ static irqreturn_t interrupt_pcl812_ai_dma(int irq, void *d)
 	short *ptr;
 
 #ifdef PCL812_EXTDEBUG
-	rt_printk("pcl812 EDBG: BGN: interrupt_pcl812_ai_dma(...)\n");
+	printk("pcl812 EDBG: BGN: interrupt_pcl812_ai_dma(...)\n");
 #endif
 	ptr = (short *) devpriv->dmabuf[devpriv->next_dma_buf];
 	len = (devpriv->dmabytestomove[devpriv->next_dma_buf] >> 1) -
@@ -1053,7 +1053,7 @@ static irqreturn_t interrupt_pcl812_ai_dma(int irq, void *d)
 	transfer_from_dma_buf(dev, s, ptr, bufptr, len);
 
 #ifdef PCL812_EXTDEBUG
-	rt_printk("pcl812 EDBG: END: interrupt_pcl812_ai_dma(...)\n");
+	printk("pcl812 EDBG: END: interrupt_pcl812_ai_dma(...)\n");
 #endif
 	return IRQ_HANDLED;
 }
@@ -1087,7 +1087,7 @@ static int pcl812_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 	if (!devpriv->ai_dma)
 		return 0;	/*  poll is valid only for DMA transfer */
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 
 	for (i = 0; i < 10; i++) {
 		top1 = get_dma_residue(devpriv->ai_dma);	/*  where is now DMA */
@@ -1097,7 +1097,7 @@ static int pcl812_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 	}
 
 	if (top1 != top2) {
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 		return 0;
 	}
 
@@ -1105,7 +1105,7 @@ static int pcl812_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 	top1 >>= 1;		/*  sample position */
 	top2 = top1 - devpriv->ai_poll_ptr;
 	if (top2 < 1) {		/*  no new samples */
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 		return 0;
 	}
 
@@ -1115,7 +1115,7 @@ static int pcl812_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 
 	devpriv->ai_poll_ptr = top1;	/*  new buffer position */
 
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	return s->async->buf_write_count - s->async->buf_read_count;
 }
@@ -1152,7 +1152,7 @@ static void setup_range_channel(struct comedi_device *dev, struct comedi_subdevi
 	outb(gain_reg, dev->iobase + PCL812_GAIN);	/* select gain */
 
 	if (wait) {
-		comedi_udelay(devpriv->max_812_ai_mode0_rangewait);	/*  XXX this depends on selected range and can be very long for some high gain ranges! */
+		udelay(devpriv->max_812_ai_mode0_rangewait);	/*  XXX this depends on selected range and can be very long for some high gain ranges! */
 	}
 }
 
@@ -1163,12 +1163,12 @@ static void start_pacer(struct comedi_device *dev, int mode, unsigned int diviso
 	unsigned int divisor2)
 {
 #ifdef PCL812_EXTDEBUG
-	rt_printk("pcl812 EDBG: BGN: start_pacer(%d,%u,%u)\n", mode, divisor1,
+	printk("pcl812 EDBG: BGN: start_pacer(%d,%u,%u)\n", mode, divisor1,
 		divisor2);
 #endif
 	outb(0xb4, dev->iobase + PCL812_CTRCTL);
 	outb(0x74, dev->iobase + PCL812_CTRCTL);
-	comedi_udelay(1);
+	udelay(1);
 
 	if (mode == 1) {
 		outb(divisor2 & 0xff, dev->iobase + PCL812_CTR2);
@@ -1177,7 +1177,7 @@ static void start_pacer(struct comedi_device *dev, int mode, unsigned int diviso
 		outb((divisor1 >> 8) & 0xff, dev->iobase + PCL812_CTR1);
 	}
 #ifdef PCL812_EXTDEBUG
-	rt_printk("pcl812 EDBG: END: start_pacer(...)\n");
+	printk("pcl812 EDBG: END: start_pacer(...)\n");
 #endif
 }
 
@@ -1196,7 +1196,7 @@ static void free_resources(struct comedi_device *dev)
 			free_dma(devpriv->dma);
 	}
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	if (dev->iobase)
 		release_region(dev->iobase, this_board->io_range);
 }
@@ -1207,7 +1207,7 @@ static void free_resources(struct comedi_device *dev)
 static int pcl812_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 {
 #ifdef PCL812_EXTDEBUG
-	rt_printk("pcl812 EDBG: BGN: pcl812_ai_cancel(...)\n");
+	printk("pcl812 EDBG: BGN: pcl812_ai_cancel(...)\n");
 #endif
 	if (devpriv->ai_dma)
 		disable_dma(devpriv->dma);
@@ -1216,7 +1216,7 @@ static int pcl812_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *
 	start_pacer(dev, -1, 0, 0);	/*  stop 8254 */
 	outb(0, dev->iobase + PCL812_CLRINT);	/* clear INT request */
 #ifdef PCL812_EXTDEBUG
-	rt_printk("pcl812 EDBG: END: pcl812_ai_cancel(...)\n");
+	printk("pcl812 EDBG: END: pcl812_ai_cancel(...)\n");
 #endif
 	return 0;
 }
@@ -1227,7 +1227,7 @@ static int pcl812_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *
 static void pcl812_reset(struct comedi_device *dev)
 {
 #ifdef PCL812_EXTDEBUG
-	rt_printk("pcl812 EDBG: BGN: pcl812_reset(...)\n");
+	printk("pcl812 EDBG: BGN: pcl812_reset(...)\n");
 #endif
 	outb(0, dev->iobase + PCL812_MUX);
 	outb(0 + devpriv->range_correction, dev->iobase + PCL812_GAIN);
@@ -1254,12 +1254,12 @@ static void pcl812_reset(struct comedi_device *dev)
 	case boardPCL813:
 	case boardISO813:
 	case boardACL8113:
-		comedi_udelay(5);
+		udelay(5);
 		break;
 	}
-	comedi_udelay(5);
+	udelay(5);
 #ifdef PCL812_EXTDEBUG
-	rt_printk("pcl812 EDBG: END: pcl812_reset(...)\n");
+	printk("pcl812 EDBG: END: pcl812_reset(...)\n");
 #endif
 }
 
@@ -1302,8 +1302,7 @@ static int pcl812_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 				printk(", IRQ %u is out of allowed range, DISABLING IT", irq);
 				irq = 0;	/* Bad IRQ */
 			} else {
-				if (comedi_request_irq(irq, interrupt_pcl812, 0,
-						"pcl812", dev)) {
+				if (request_irq(irq, interrupt_pcl812, 0, "pcl812", dev)) {
 					printk(", unable to allocate IRQ %u, DISABLING IT", irq);
 					irq = 0;	/* Can't use IRQ */
 				} else {
@@ -1600,7 +1599,7 @@ static int pcl812_detach(struct comedi_device *dev)
 {
 
 #ifdef PCL812_EXTDEBUG
-	rt_printk("comedi%d: pcl812: remove\n", dev->minor);
+	printk("comedi%d: pcl812: remove\n", dev->minor);
 #endif
 	free_resources(dev);
 	return 0;
diff --git a/drivers/staging/comedi/drivers/pcl816.c b/drivers/staging/comedi/drivers/pcl816.c
index d269ac1b5ddc..353cdaf03ed3 100644
--- a/drivers/staging/comedi/drivers/pcl816.c
+++ b/drivers/staging/comedi/drivers/pcl816.c
@@ -263,7 +263,7 @@ static int pcl816_ai_insn_read(struct comedi_device *dev, struct comedi_subdevic
 				outb(0, dev->iobase + PCL816_CLRINT);	/* clear INT (conversion end) flag */
 				break;
 			}
-			comedi_udelay(1);
+			udelay(1);
 		}
 		/*  Return timeout error */
 		if (!timeout) {
@@ -293,7 +293,7 @@ static irqreturn_t interrupt_pcl816_ai_mode13_int(int irq, void *d)
 		if (!(inb(dev->iobase + PCL816_STATUS) &
 				PCL816_STATUS_DRDY_MASK))
 			break;
-		comedi_udelay(1);
+		udelay(1);
 	}
 	if (!timeout) {		/*  timeout, bail error */
 		outb(0, dev->iobase + PCL816_CLRINT);	/* clear INT request */
@@ -449,13 +449,13 @@ static irqreturn_t interrupt_pcl816(int irq, void *d)
 */
 static void pcl816_cmdtest_out(int e, struct comedi_cmd *cmd)
 {
-	rt_printk("pcl816 e=%d startsrc=%x scansrc=%x convsrc=%x\n", e,
+	printk("pcl816 e=%d startsrc=%x scansrc=%x convsrc=%x\n", e,
 		cmd->start_src, cmd->scan_begin_src, cmd->convert_src);
-	rt_printk("pcl816 e=%d startarg=%d scanarg=%d convarg=%d\n", e,
+	printk("pcl816 e=%d startarg=%d scanarg=%d convarg=%d\n", e,
 		cmd->start_arg, cmd->scan_begin_arg, cmd->convert_arg);
-	rt_printk("pcl816 e=%d stopsrc=%x scanend=%x\n", e, cmd->stop_src,
+	printk("pcl816 e=%d stopsrc=%x scanend=%x\n", e, cmd->stop_src,
 		cmd->scan_end_src);
-	rt_printk("pcl816 e=%d stoparg=%d scanendarg=%d chanlistlen=%d\n", e,
+	printk("pcl816 e=%d stoparg=%d scanendarg=%d chanlistlen=%d\n", e,
 		cmd->stop_arg, cmd->scan_end_arg, cmd->chanlist_len);
 }
 
@@ -468,7 +468,7 @@ static int pcl816_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice
 	int err = 0;
 	int tmp, divisor1, divisor2;
 
-	DEBUG(rt_printk("pcl816 pcl812_ai_cmdtest\n");
+	DEBUG(printk("pcl816 pcl812_ai_cmdtest\n");
 		pcl816_cmdtest_out(-1, cmd););
 
 	/* step 1: make sure trigger sources are trivially valid */
@@ -636,7 +636,7 @@ static int pcl816_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	if (!check_and_setup_channel_list(dev, s, cmd->chanlist,
 			cmd->chanlist_len))
 		return -EINVAL;
-	comedi_udelay(1);
+	udelay(1);
 
 	devpriv->ai_act_scan = 0;
 	s->async->cur_chan = 0;
@@ -710,7 +710,7 @@ static int pcl816_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 	if (!devpriv->dma)
 		return 0;	/*  poll is valid only for DMA transfer */
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 
 	for (i = 0; i < 20; i++) {
 		top1 = get_dma_residue(devpriv->dma);	/*  where is now DMA */
@@ -719,7 +719,7 @@ static int pcl816_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 			break;
 	}
 	if (top1 != top2) {
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 		return 0;
 	}
 
@@ -727,7 +727,7 @@ static int pcl816_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 	top1 >>= 1;		/*  sample position */
 	top2 = top1 - devpriv->ai_poll_ptr;
 	if (top2 < 1) {		/*  no new samples */
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 		return 0;
 	}
 
@@ -736,7 +736,7 @@ static int pcl816_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 		devpriv->ai_poll_ptr, top2);
 
 	devpriv->ai_poll_ptr = top1;	/*  new buffer position */
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	return s->async->buf_write_count - s->async->buf_read_count;
 }
@@ -747,7 +747,7 @@ static int pcl816_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 */
 static int pcl816_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 {
-/* DEBUG(rt_printk("pcl816_ai_cancel()\n");) */
+/* DEBUG(printk("pcl816_ai_cancel()\n");) */
 
 	if (devpriv->irq_blocked > 0) {
 		switch (devpriv->int816_mode) {
@@ -763,7 +763,7 @@ static int pcl816_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *
 		case INT_TYPE_AI1_INT:
 		case INT_TYPE_AI3_INT:
 			outb(inb(dev->iobase + PCL816_CONTROL) & 0x73, dev->iobase + PCL816_CONTROL);	/* Stop A/D */
-			comedi_udelay(1);
+			udelay(1);
 			outb(0, dev->iobase + PCL816_CONTROL);	/* Stop A/D */
 			outb(0xb0, dev->iobase + PCL816_CTRCTL);	/* Stop pacer */
 			outb(0x70, dev->iobase + PCL816_CTRCTL);
@@ -781,7 +781,7 @@ static int pcl816_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *
 		}
 	}
 
-	DEBUG(rt_printk("comedi: pcl816_ai_cancel() successful\n");
+	DEBUG(printk("comedi: pcl816_ai_cancel() successful\n");
 		)
 		return 0;
 }
@@ -793,17 +793,17 @@ static int pcl816_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *
 static int pcl816_check(unsigned long iobase)
 {
 	outb(0x00, iobase + PCL816_MUX);
-	comedi_udelay(1);
+	udelay(1);
 	if (inb(iobase + PCL816_MUX) != 0x00)
 		return 1;	/* there isn't card */
 	outb(0x55, iobase + PCL816_MUX);
-	comedi_udelay(1);
+	udelay(1);
 	if (inb(iobase + PCL816_MUX) != 0x55)
 		return 1;	/* there isn't card */
 	outb(0x00, iobase + PCL816_MUX);
-	comedi_udelay(1);
+	udelay(1);
 	outb(0x18, iobase + PCL816_CONTROL);
-	comedi_udelay(1);
+	udelay(1);
 	if (inb(iobase + PCL816_CONTROL) != 0x18)
 		return 1;	/* there isn't card */
 	return 0;		/*  ok, card exist */
@@ -817,10 +817,10 @@ static void pcl816_reset(struct comedi_device *dev)
 {
 /* outb (0, dev->iobase + PCL818_DA_LO);         DAC=0V */
 /* outb (0, dev->iobase + PCL818_DA_HI); */
-/* comedi_udelay (1); */
+/* udelay (1); */
 /* outb (0, dev->iobase + PCL818_DO_HI);        DO=$0000 */
 /* outb (0, dev->iobase + PCL818_DO_LO); */
-/* comedi_udelay (1); */
+/* udelay (1); */
 	outb(0, dev->iobase + PCL816_CONTROL);
 	outb(0, dev->iobase + PCL816_MUX);
 	outb(0, dev->iobase + PCL816_CLRINT);
@@ -841,10 +841,10 @@ start_pacer(struct comedi_device *dev, int mode, unsigned int divisor1,
 	outb(0x32, dev->iobase + PCL816_CTRCTL);
 	outb(0xff, dev->iobase + PCL816_CTR0);
 	outb(0x00, dev->iobase + PCL816_CTR0);
-	comedi_udelay(1);
+	udelay(1);
 	outb(0xb4, dev->iobase + PCL816_CTRCTL);	/*  set counter 2 as mode 3 */
 	outb(0x74, dev->iobase + PCL816_CTRCTL);	/*  set counter 1 as mode 3 */
-	comedi_udelay(1);
+	udelay(1);
 
 	if (mode == 1) {
 		DPRINTK("mode %d, divisor1 %d, divisor2 %d\n", mode, divisor1,
@@ -881,7 +881,7 @@ check_and_setup_channel_list(struct comedi_device *dev, struct comedi_subdevice
 		chansegment[0] = chanlist[0];	/*  first channel is everytime ok */
 		for (i = 1, seglen = 1; i < chanlen; i++, seglen++) {
 			/*  build part of chanlist */
-			DEBUG(rt_printk("%d. %d %d\n", i, CR_CHAN(chanlist[i]),
+			DEBUG(printk("%d. %d %d\n", i, CR_CHAN(chanlist[i]),
 					CR_RANGE(chanlist[i]));
 				)
 				if (chanlist[0] == chanlist[i])
@@ -890,7 +890,7 @@ check_and_setup_channel_list(struct comedi_device *dev, struct comedi_subdevice
 				(CR_CHAN(chansegment[i - 1]) + 1) % chanlen;
 			if (nowmustbechan != CR_CHAN(chanlist[i])) {
 				/*  channel list isn't continous :-( */
-				rt_printk
+				printk
 					("comedi%d: pcl816: channel list must be continous! chanlist[%i]=%d but must be %d or %d!\n",
 					dev->minor, i, CR_CHAN(chanlist[i]),
 					nowmustbechan, CR_CHAN(chanlist[0]));
@@ -900,14 +900,14 @@ check_and_setup_channel_list(struct comedi_device *dev, struct comedi_subdevice
 		}
 
 		for (i = 0, segpos = 0; i < chanlen; i++) {	/*  check whole chanlist */
-			DEBUG(rt_printk("%d %d=%d %d\n",
+			DEBUG(printk("%d %d=%d %d\n",
 					CR_CHAN(chansegment[i % seglen]),
 					CR_RANGE(chansegment[i % seglen]),
 					CR_CHAN(chanlist[i]),
 					CR_RANGE(chanlist[i]));
 				)
 				if (chanlist[i] != chansegment[i % seglen]) {
-				rt_printk
+				printk
 					("comedi%d: pcl816: bad channel or range number! chanlist[%i]=%d,%d,%d and not %d,%d,%d!\n",
 					dev->minor, i, CR_CHAN(chansegment[i]),
 					CR_RANGE(chansegment[i]),
@@ -931,7 +931,7 @@ check_and_setup_channel_list(struct comedi_device *dev, struct comedi_subdevice
 		outb(CR_RANGE(chanlist[0]), dev->iobase + PCL816_RANGE);	/* select gain */
 	}
 
-	comedi_udelay(1);
+	udelay(1);
 
 	outb(devpriv->ai_act_chanlist[0] | (devpriv->ai_act_chanlist[seglen - 1] << 4), dev->iobase + PCL816_MUX);	/* select channel interval to scan */
 
@@ -981,7 +981,7 @@ static int set_rtc_irq_bit(unsigned char bit)
 */
 static void free_resources(struct comedi_device *dev)
 {
-	/* rt_printk("free_resource()\n"); */
+	/* printk("free_resource()\n"); */
 	if (dev->private) {
 		pcl816_ai_cancel(dev, devpriv->sub_ai);
 		pcl816_reset(dev);
@@ -993,7 +993,7 @@ static void free_resources(struct comedi_device *dev)
 			free_pages(devpriv->dmabuf[1], devpriv->dmapages[1]);
 #ifdef unused
 		if (devpriv->rtc_irq)
-			comedi_free_irq(devpriv->rtc_irq, dev);
+			free_irq(devpriv->rtc_irq, dev);
 		if ((devpriv->dma_rtc) && (RTC_lock == 1)) {
 			if (devpriv->rtc_iobase)
 				release_region(devpriv->rtc_iobase,
@@ -1006,7 +1006,7 @@ static void free_resources(struct comedi_device *dev)
 		free_irq(dev->irq, dev);
 	if (dev->iobase)
 		release_region(dev->iobase, this_board->io_range);
-	/* rt_printk("free_resource() end\n"); */
+	/* printk("free_resource() end\n"); */
 }
 
 /*
@@ -1030,14 +1030,14 @@ static int pcl816_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		this_board->name, iobase);
 
 	if (!request_region(iobase, this_board->io_range, "pcl816")) {
-		rt_printk("I/O port conflict\n");
+		printk("I/O port conflict\n");
 		return -EIO;
 	}
 
 	dev->iobase = iobase;
 
 	if (pcl816_check(iobase)) {
-		rt_printk(", I cann't detect board. FAIL!\n");
+		printk(", I cann't detect board. FAIL!\n");
 		return -EIO;
 	}
 
@@ -1054,19 +1054,18 @@ static int pcl816_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		irq = it->options[1];
 		if (irq) {	/* we want to use IRQ */
 			if (((1 << irq) & this_board->IRQbits) == 0) {
-				rt_printk
+				printk
 					(", IRQ %u is out of allowed range, DISABLING IT",
 					irq);
 				irq = 0;	/* Bad IRQ */
 			} else {
-				if (comedi_request_irq(irq, interrupt_pcl816, 0,
-						"pcl816", dev)) {
-					rt_printk
+				if (request_irq(irq, interrupt_pcl816, 0, "pcl816", dev)) {
+					printk
 						(", unable to allocate IRQ %u, DISABLING IT",
 						irq);
 					irq = 0;	/* Can't use IRQ */
 				} else {
-					rt_printk(", irq=%u", irq);
+					printk(", irq=%u", irq);
 				}
 			}
 		}
@@ -1095,12 +1094,11 @@ static int pcl816_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		devpriv->rtc_iosize = RTC_IO_EXTENT;
 		RTC_lock++;
 #ifdef UNTESTED_CODE
-		if (!comedi_request_irq(RTC_IRQ,
-				interrupt_pcl816_ai_mode13_dma_rtc, 0,
+		if (!request_irq(RTC_IRQ, interrupt_pcl816_ai_mode13_dma_rtc, 0,
 				"pcl816 DMA (RTC)", dev)) {
 			devpriv->dma_rtc = 1;
 			devpriv->rtc_irq = RTC_IRQ;
-			rt_printk(", dma_irq=%u", devpriv->rtc_irq);
+			printk(", dma_irq=%u", devpriv->rtc_irq);
 		} else {
 			RTC_lock--;
 			if (RTC_lock == 0) {
@@ -1131,34 +1129,34 @@ static int pcl816_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 			goto no_dma;	/* DMA disabled */
 
 		if (((1 << dma) & this_board->DMAbits) == 0) {
-			rt_printk(", DMA is out of allowed range, FAIL!\n");
+			printk(", DMA is out of allowed range, FAIL!\n");
 			return -EINVAL;	/* Bad DMA */
 		}
 		ret = request_dma(dma, "pcl816");
 		if (ret) {
-			rt_printk(", unable to allocate DMA %u, FAIL!\n", dma);
+			printk(", unable to allocate DMA %u, FAIL!\n", dma);
 			return -EBUSY;	/* DMA isn't free */
 		}
 
 		devpriv->dma = dma;
-		rt_printk(", dma=%u", dma);
+		printk(", dma=%u", dma);
 		pages = 2;	/* we need 16KB */
 		devpriv->dmabuf[0] = __get_dma_pages(GFP_KERNEL, pages);
 
 		if (!devpriv->dmabuf[0]) {
-			rt_printk(", unable to allocate DMA buffer, FAIL!\n");
+			printk(", unable to allocate DMA buffer, FAIL!\n");
 			/* maybe experiment with try_to_free_pages() will help .... */
 			return -EBUSY;	/* no buffer :-( */
 		}
 		devpriv->dmapages[0] = pages;
 		devpriv->hwdmaptr[0] = virt_to_bus((void *)devpriv->dmabuf[0]);
 		devpriv->hwdmasize[0] = (1 << pages) * PAGE_SIZE;
-		/* rt_printk("%d %d %ld, ",devpriv->dmapages[0],devpriv->hwdmasize[0],PAGE_SIZE); */
+		/* printk("%d %d %ld, ",devpriv->dmapages[0],devpriv->hwdmasize[0],PAGE_SIZE); */
 
 		if (devpriv->dma_rtc == 0) {	/*  we must do duble buff :-( */
 			devpriv->dmabuf[1] = __get_dma_pages(GFP_KERNEL, pages);
 			if (!devpriv->dmabuf[1]) {
-				rt_printk
+				printk
 					(", unable to allocate DMA buffer, FAIL!\n");
 				return -EBUSY;
 			}
@@ -1232,7 +1230,7 @@ case COMEDI_SUBD_DO:
 
 	pcl816_reset(dev);
 
-	rt_printk("\n");
+	printk("\n");
 
 	return 0;
 }
@@ -1243,7 +1241,7 @@ case COMEDI_SUBD_DO:
  */
 static int pcl816_detach(struct comedi_device *dev)
 {
-	DEBUG(rt_printk("comedi%d: pcl816: remove\n", dev->minor);
+	DEBUG(printk("comedi%d: pcl816: remove\n", dev->minor);
 		)
 		free_resources(dev);
 #ifdef unused
diff --git a/drivers/staging/comedi/drivers/pcl818.c b/drivers/staging/comedi/drivers/pcl818.c
index acca36212773..607c71744bfc 100644
--- a/drivers/staging/comedi/drivers/pcl818.c
+++ b/drivers/staging/comedi/drivers/pcl818.c
@@ -418,7 +418,7 @@ static int pcl818_ai_insn_read(struct comedi_device *dev, struct comedi_subdevic
 		while (timeout--) {
 			if (inb(dev->iobase + PCL818_STATUS) & 0x10)
 				goto conv_finish;
-			comedi_udelay(1);
+			udelay(1);
 		}
 		comedi_error(dev, "A/D insn timeout");
 		/* clear INT (conversion end) flag */
@@ -524,7 +524,7 @@ static irqreturn_t interrupt_pcl818_ai_mode13_int(int irq, void *d)
 	while (timeout--) {
 		if (inb(dev->iobase + PCL818_STATUS) & 0x10)
 			goto conv_finish;
-		comedi_udelay(1);
+		udelay(1);
 	}
 	outb(0, dev->iobase + PCL818_STATUS);	/* clear INT request */
 	comedi_error(dev, "A/D mode1/3 IRQ without DRDY!");
@@ -539,7 +539,7 @@ static irqreturn_t interrupt_pcl818_ai_mode13_int(int irq, void *d)
 	outb(0, dev->iobase + PCL818_CLRINT);	/* clear INT request */
 
 	if ((low & 0xf) != devpriv->act_chanlist[devpriv->act_chanlist_pos]) {	/*  dropout! */
-		rt_printk
+		printk
 			("comedi: A/D mode1/3 IRQ - channel dropout %x!=%x !\n",
 			(low & 0xf),
 			devpriv->act_chanlist[devpriv->act_chanlist_pos]);
@@ -549,7 +549,7 @@ static irqreturn_t interrupt_pcl818_ai_mode13_int(int irq, void *d)
 		return IRQ_HANDLED;
 	}
 	if (s->async->cur_chan == 0) {
-		/*  rt_printk("E"); */
+		/*  printk("E"); */
 		devpriv->ai_act_scan--;
 	}
 
@@ -591,7 +591,7 @@ static irqreturn_t interrupt_pcl818_ai_mode13_dma(int irq, void *d)
 		release_dma_lock(flags);
 		enable_dma(devpriv->dma);
 	}
-	rt_printk("comedi: A/D mode1/3 IRQ \n");
+	printk("comedi: A/D mode1/3 IRQ \n");
 
 	devpriv->dma_runs_to_end--;
 	outb(0, dev->iobase + PCL818_CLRINT);	/* clear INT request */
@@ -602,7 +602,7 @@ static irqreturn_t interrupt_pcl818_ai_mode13_dma(int irq, void *d)
 
 	for (i = 0; i < len; i++) {
 		if ((ptr[bufptr] & 0xf) != devpriv->act_chanlist[devpriv->act_chanlist_pos]) {	/*  dropout! */
-			rt_printk
+			printk
 				("comedi: A/D mode1/3 DMA - channel dropout %d(card)!=%d(chanlist) at %d !\n",
 				(ptr[bufptr] & 0xf),
 				devpriv->act_chanlist[devpriv->
@@ -681,19 +681,19 @@ static irqreturn_t interrupt_pcl818_ai_mode13_dma_rtc(int irq, void *d)
 
 		if (dmabuf[i] != MAGIC_DMA_WORD) {	/*  DMA overflow! */
 			comedi_error(dev, "A/D mode1/3 DMA buffer overflow!");
-			/* rt_printk("I %d dmabuf[i] %d %d\n",i,dmabuf[i],devpriv->dmasamplsize); */
+			/* printk("I %d dmabuf[i] %d %d\n",i,dmabuf[i],devpriv->dmasamplsize); */
 			pcl818_ai_cancel(dev, s);
 			s->async->events |= COMEDI_CB_EOA | COMEDI_CB_ERROR;
 			comedi_event(dev, s);
 			return IRQ_HANDLED;
 		}
-		/* rt_printk("r %ld ",ofs_dats); */
+		/* printk("r %ld ",ofs_dats); */
 
 		bufptr = devpriv->last_top_dma;
 
 		for (i = 0; i < ofs_dats; i++) {
 			if ((dmabuf[bufptr] & 0xf) != devpriv->act_chanlist[devpriv->act_chanlist_pos]) {	/*  dropout! */
-				rt_printk
+				printk
 					("comedi: A/D mode1/3 DMA - channel dropout %d!=%d !\n",
 					(dmabuf[bufptr] & 0xf),
 					devpriv->act_chanlist[devpriv->
@@ -775,7 +775,7 @@ static irqreturn_t interrupt_pcl818_ai_mode13_fifo(int irq, void *d)
 	for (i = 0; i < len; i++) {
 		lo = inb(dev->iobase + PCL818_FI_DATALO);
 		if ((lo & 0xf) != devpriv->act_chanlist[devpriv->act_chanlist_pos]) {	/*  dropout! */
-			rt_printk
+			printk
 				("comedi: A/D mode1/3 FIFO - channel dropout %d!=%d !\n",
 				(lo & 0xf),
 				devpriv->act_chanlist[devpriv->
@@ -818,7 +818,7 @@ static irqreturn_t interrupt_pcl818(int irq, void *d)
 		comedi_error(dev, "premature interrupt");
 		return IRQ_HANDLED;
 	}
-	/* rt_printk("I\n"); */
+	/* printk("I\n"); */
 
 	if (devpriv->irq_blocked && devpriv->irq_was_now_closed) {
 		if ((devpriv->neverending_ai || (!devpriv->neverending_ai &&
@@ -882,7 +882,7 @@ static void pcl818_ai_mode13dma_int(int mode, struct comedi_device *dev,
 	unsigned int flags;
 	unsigned int bytes;
 
-	rt_printk("mode13dma_int, mode: %d\n", mode);
+	printk("mode13dma_int, mode: %d\n", mode);
 	disable_dma(devpriv->dma);	/*  disable dma */
 	bytes = devpriv->hwdmasize[0];
 	if (!devpriv->neverending_ai) {
@@ -965,7 +965,7 @@ static int pcl818_ai_cmd_mode(int mode, struct comedi_device *dev,
 	int divisor1, divisor2;
 	unsigned int seglen;
 
-	rt_printk("pcl818_ai_cmd_mode()\n");
+	printk("pcl818_ai_cmd_mode()\n");
 	if ((!dev->irq) && (!devpriv->dma_rtc)) {
 		comedi_error(dev, "IRQ not defined!");
 		return -EINVAL;
@@ -983,7 +983,7 @@ static int pcl818_ai_cmd_mode(int mode, struct comedi_device *dev,
 	setup_channel_list(dev, s, devpriv->ai_chanlist,
 		devpriv->ai_n_chan, seglen);
 
-	comedi_udelay(1);
+	udelay(1);
 
 	devpriv->ai_act_scan = devpriv->ai_scans;
 	devpriv->ai_act_chan = 0;
@@ -1030,7 +1030,7 @@ static int pcl818_ai_cmd_mode(int mode, struct comedi_device *dev,
 	case 0:
 		if (!devpriv->usefifo) {
 			/* IRQ */
-			/* rt_printk("IRQ\n"); */
+			/* printk("IRQ\n"); */
 			if (mode == 1) {
 				devpriv->ai_mode = INT_TYPE_AI1_INT;
 				/* Pacer+IRQ */
@@ -1065,7 +1065,7 @@ static int pcl818_ai_cmd_mode(int mode, struct comedi_device *dev,
 		break;
 	}
 #endif
-	rt_printk("pcl818_ai_cmd_mode() end\n");
+	printk("pcl818_ai_cmd_mode() end\n");
 	return 0;
 }
 
@@ -1155,7 +1155,7 @@ static void start_pacer(struct comedi_device *dev, int mode, unsigned int diviso
 {
 	outb(0xb4, dev->iobase + PCL818_CTRCTL);
 	outb(0x74, dev->iobase + PCL818_CTRCTL);
-	comedi_udelay(1);
+	udelay(1);
 
 	if (mode == 1) {
 		outb(divisor2 & 0xff, dev->iobase + PCL818_CTR2);
@@ -1188,7 +1188,7 @@ static int check_channel_list(struct comedi_device *dev, struct comedi_subdevice
 		/*  build part of chanlist */
 		for (i = 1, seglen = 1; i < n_chan; i++, seglen++) {
 
-			/* rt_printk("%d. %d * %d\n",i,
+			/* printk("%d. %d * %d\n",i,
 			 * CR_CHAN(it->chanlist[i]),CR_RANGE(it->chanlist[i]));*/
 
 			/* we detect loop, this must by finish */
@@ -1198,7 +1198,7 @@ static int check_channel_list(struct comedi_device *dev, struct comedi_subdevice
 			nowmustbechan =
 				(CR_CHAN(chansegment[i - 1]) + 1) % s->n_chan;
 			if (nowmustbechan != CR_CHAN(chanlist[i])) {	/*  channel list isn't continous :-( */
-				rt_printk
+				printk
 					("comedi%d: pcl818: channel list must be continous! chanlist[%i]=%d but must be %d or %d!\n",
 					dev->minor, i, CR_CHAN(chanlist[i]),
 					nowmustbechan, CR_CHAN(chanlist[0]));
@@ -1210,9 +1210,9 @@ static int check_channel_list(struct comedi_device *dev, struct comedi_subdevice
 
 		/*  check whole chanlist */
 		for (i = 0, segpos = 0; i < n_chan; i++) {
-			/* rt_printk("%d %d=%d %d\n",CR_CHAN(chansegment[i%seglen]),CR_RANGE(chansegment[i%seglen]),CR_CHAN(it->chanlist[i]),CR_RANGE(it->chanlist[i])); */
+			/* printk("%d %d=%d %d\n",CR_CHAN(chansegment[i%seglen]),CR_RANGE(chansegment[i%seglen]),CR_CHAN(it->chanlist[i]),CR_RANGE(it->chanlist[i])); */
 			if (chanlist[i] != chansegment[i % seglen]) {
-				rt_printk
+				printk
 					("comedi%d: pcl818: bad channel or range number! chanlist[%i]=%d,%d,%d and not %d,%d,%d!\n",
 					dev->minor, i, CR_CHAN(chansegment[i]),
 					CR_RANGE(chansegment[i]),
@@ -1226,7 +1226,7 @@ static int check_channel_list(struct comedi_device *dev, struct comedi_subdevice
 	} else {
 		seglen = 1;
 	}
-	rt_printk("check_channel_list: seglen %d\n", seglen);
+	printk("check_channel_list: seglen %d\n", seglen);
 	return seglen;
 }
 
@@ -1244,7 +1244,7 @@ static void setup_channel_list(struct comedi_device *dev, struct comedi_subdevic
 		outb(CR_RANGE(chanlist[i]), dev->iobase + PCL818_RANGE);	/* select gain */
 	}
 
-	comedi_udelay(1);
+	udelay(1);
 
 	/* select channel interval to scan */
 	outb(devpriv->act_chanlist[0] | (devpriv->act_chanlist[seglen -
@@ -1417,7 +1417,7 @@ static int ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	struct comedi_cmd *cmd = &s->async->cmd;
 	int retval;
 
-	rt_printk("pcl818_ai_cmd()\n");
+	printk("pcl818_ai_cmd()\n");
 	devpriv->ai_n_chan = cmd->chanlist_len;
 	devpriv->ai_chanlist = cmd->chanlist;
 	devpriv->ai_flags = cmd->flags;
@@ -1436,7 +1436,7 @@ static int ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		if (cmd->convert_src == TRIG_TIMER) {	/*  mode 1 */
 			devpriv->ai_timer1 = cmd->convert_arg;
 			retval = pcl818_ai_cmd_mode(1, dev, s);
-			rt_printk("pcl818_ai_cmd() end\n");
+			printk("pcl818_ai_cmd() end\n");
 			return retval;
 		}
 		if (cmd->convert_src == TRIG_EXT) {	/*  mode 3 */
@@ -1454,7 +1454,7 @@ static int ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 static int pcl818_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 {
 	if (devpriv->irq_blocked > 0) {
-		rt_printk("pcl818_ai_cancel()\n");
+		printk("pcl818_ai_cancel()\n");
 		devpriv->irq_was_now_closed = 1;
 
 		switch (devpriv->ai_mode) {
@@ -1482,7 +1482,7 @@ static int pcl818_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *
 		case INT_TYPE_AO3_INT:
 #endif
 			outb(inb(dev->iobase + PCL818_CONTROL) & 0x73, dev->iobase + PCL818_CONTROL);	/* Stop A/D */
-			comedi_udelay(1);
+			udelay(1);
 			start_pacer(dev, -1, 0, 0);
 			outb(0, dev->iobase + PCL818_AD_LO);
 			inb(dev->iobase + PCL818_AD_LO);
@@ -1504,7 +1504,7 @@ static int pcl818_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *
 	}
 
       end:
-	rt_printk("pcl818_ai_cancel() end\n");
+	printk("pcl818_ai_cancel() end\n");
 	return 0;
 }
 
@@ -1515,17 +1515,17 @@ static int pcl818_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *
 static int pcl818_check(unsigned long iobase)
 {
 	outb(0x00, iobase + PCL818_MUX);
-	comedi_udelay(1);
+	udelay(1);
 	if (inb(iobase + PCL818_MUX) != 0x00)
 		return 1;	/* there isn't card */
 	outb(0x55, iobase + PCL818_MUX);
-	comedi_udelay(1);
+	udelay(1);
 	if (inb(iobase + PCL818_MUX) != 0x55)
 		return 1;	/* there isn't card */
 	outb(0x00, iobase + PCL818_MUX);
-	comedi_udelay(1);
+	udelay(1);
 	outb(0x18, iobase + PCL818_CONTROL);
-	comedi_udelay(1);
+	udelay(1);
 	if (inb(iobase + PCL818_CONTROL) != 0x18)
 		return 1;	/* there isn't card */
 	return 0;		/*  ok, card exist */
@@ -1544,10 +1544,10 @@ static void pcl818_reset(struct comedi_device *dev)
 	}
 	outb(0, dev->iobase + PCL818_DA_LO);	/*  DAC=0V */
 	outb(0, dev->iobase + PCL818_DA_HI);
-	comedi_udelay(1);
+	udelay(1);
 	outb(0, dev->iobase + PCL818_DO_HI);	/*  DO=$0000 */
 	outb(0, dev->iobase + PCL818_DO_LO);
-	comedi_udelay(1);
+	udelay(1);
 	outb(0, dev->iobase + PCL818_CONTROL);
 	outb(0, dev->iobase + PCL818_CNTENABLE);
 	outb(0, dev->iobase + PCL818_MUX);
@@ -1658,7 +1658,7 @@ static int rtc_setfreq_irq(int freq)
 */
 static void free_resources(struct comedi_device *dev)
 {
-	/* rt_printk("free_resource()\n"); */
+	/* printk("free_resource()\n"); */
 	if (dev->private) {
 		pcl818_ai_cancel(dev, devpriv->sub_ai);
 		pcl818_reset(dev);
@@ -1670,7 +1670,7 @@ static void free_resources(struct comedi_device *dev)
 			free_pages(devpriv->dmabuf[1], devpriv->dmapages[1]);
 #ifdef unused
 		if (devpriv->rtc_irq)
-			comedi_free_irq(devpriv->rtc_irq, dev);
+			free_irq(devpriv->rtc_irq, dev);
 		if ((devpriv->dma_rtc) && (RTC_lock == 1)) {
 			if (devpriv->rtc_iobase)
 				release_region(devpriv->rtc_iobase,
@@ -1685,7 +1685,7 @@ static void free_resources(struct comedi_device *dev)
 		free_irq(dev->irq, dev);
 	if (dev->iobase)
 		release_region(dev->iobase, devpriv->io_range);
-	/* rt_printk("free_resource() end\n"); */
+	/* printk("free_resource() end\n"); */
 }
 
 /*
@@ -1717,14 +1717,14 @@ static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		devpriv->usefifo = 1;
 	}
 	if (!request_region(iobase, devpriv->io_range, "pcl818")) {
-		rt_printk("I/O port conflict\n");
+		printk("I/O port conflict\n");
 		return -EIO;
 	}
 
 	dev->iobase = iobase;
 
 	if (pcl818_check(iobase)) {
-		rt_printk(", I can't detect board. FAIL!\n");
+		printk(", I can't detect board. FAIL!\n");
 		return -EIO;
 	}
 
@@ -1736,19 +1736,18 @@ static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		irq = it->options[1];
 		if (irq) {	/* we want to use IRQ */
 			if (((1 << irq) & this_board->IRQbits) == 0) {
-				rt_printk
+				printk
 					(", IRQ %u is out of allowed range, DISABLING IT",
 					irq);
 				irq = 0;	/* Bad IRQ */
 			} else {
-				if (comedi_request_irq(irq, interrupt_pcl818, 0,
-						"pcl818", dev)) {
-					rt_printk
+				if (request_irq(irq, interrupt_pcl818, 0, "pcl818", dev)) {
+					printk
 						(", unable to allocate IRQ %u, DISABLING IT",
 						irq);
 					irq = 0;	/* Can't use IRQ */
 				} else {
-					rt_printk(", irq=%u", irq);
+					printk(", irq=%u", irq);
 				}
 			}
 		}
@@ -1776,12 +1775,11 @@ static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		devpriv->rtc_iobase = RTC_PORT(0);
 		devpriv->rtc_iosize = RTC_IO_EXTENT;
 		RTC_lock++;
-		if (!comedi_request_irq(RTC_IRQ,
-				interrupt_pcl818_ai_mode13_dma_rtc, 0,
+		if (!request_irq(RTC_IRQ, interrupt_pcl818_ai_mode13_dma_rtc, 0,
 				"pcl818 DMA (RTC)", dev)) {
 			devpriv->dma_rtc = 1;
 			devpriv->rtc_irq = RTC_IRQ;
-			rt_printk(", dma_irq=%u", devpriv->rtc_irq);
+			printk(", dma_irq=%u", devpriv->rtc_irq);
 		} else {
 			RTC_lock--;
 			if (RTC_lock == 0) {
@@ -1806,31 +1804,31 @@ static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		if (dma < 1)
 			goto no_dma;	/* DMA disabled */
 		if (((1 << dma) & this_board->DMAbits) == 0) {
-			rt_printk(", DMA is out of allowed range, FAIL!\n");
+			printk(", DMA is out of allowed range, FAIL!\n");
 			return -EINVAL;	/* Bad DMA */
 		}
 		ret = request_dma(dma, "pcl818");
 		if (ret) {
-			rt_printk(", unable to allocate DMA %u, FAIL!\n", dma);
+			printk(", unable to allocate DMA %u, FAIL!\n", dma);
 			return -EBUSY;	/* DMA isn't free */
 		}
 		devpriv->dma = dma;
-		rt_printk(", dma=%u", dma);
+		printk(", dma=%u", dma);
 		pages = 2;	/* we need 16KB */
 		devpriv->dmabuf[0] = __get_dma_pages(GFP_KERNEL, pages);
 		if (!devpriv->dmabuf[0]) {
-			rt_printk(", unable to allocate DMA buffer, FAIL!\n");
+			printk(", unable to allocate DMA buffer, FAIL!\n");
 			/* maybe experiment with try_to_free_pages() will help .... */
 			return -EBUSY;	/* no buffer :-( */
 		}
 		devpriv->dmapages[0] = pages;
 		devpriv->hwdmaptr[0] = virt_to_bus((void *)devpriv->dmabuf[0]);
 		devpriv->hwdmasize[0] = (1 << pages) * PAGE_SIZE;
-		/* rt_printk("%d %d %ld, ",devpriv->dmapages[0],devpriv->hwdmasize[0],PAGE_SIZE); */
+		/* printk("%d %d %ld, ",devpriv->dmapages[0],devpriv->hwdmasize[0],PAGE_SIZE); */
 		if (devpriv->dma_rtc == 0) {	/*  we must do duble buff :-( */
 			devpriv->dmabuf[1] = __get_dma_pages(GFP_KERNEL, pages);
 			if (!devpriv->dmabuf[1]) {
-				rt_printk
+				printk
 					(", unable to allocate DMA buffer, FAIL!\n");
 				return -EBUSY;
 			}
@@ -1989,7 +1987,7 @@ static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	pcl818_reset(dev);
 
-	rt_printk("\n");
+	printk("\n");
 
 	return 0;
 }
@@ -2000,7 +1998,7 @@ static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it)
  */
 static int pcl818_detach(struct comedi_device *dev)
 {
-	/*   rt_printk("comedi%d: pcl818: remove\n", dev->minor); */
+	/*   printk("comedi%d: pcl818: remove\n", dev->minor); */
 	free_resources(dev);
 	return 0;
 }
diff --git a/drivers/staging/comedi/drivers/pcmmio.c b/drivers/staging/comedi/drivers/pcmmio.c
index 2ff2fe94b704..55a2d1d0408d 100644
--- a/drivers/staging/comedi/drivers/pcmmio.c
+++ b/drivers/staging/comedi/drivers/pcmmio.c
@@ -364,7 +364,7 @@ static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 			dev->iobase + 16 + asic * ASIC_IOSIZE;
 		devpriv->asics[asic].irq = 0;	/* this gets actually set at the end of
 						   this function when we
-						   comedi_request_irqs */
+						   request_irqs */
 		spin_lock_init(&devpriv->asics[asic].spinlock);
 	}
 
@@ -489,12 +489,12 @@ static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	for (asic = 0; irq[0] && asic < MAX_ASICS; ++asic) {
 		if (irq[asic]
-			&& comedi_request_irq(irq[asic], interrupt_pcmmio,
+			&& request_irq(irq[asic], interrupt_pcmmio,
 				IRQF_SHARED, thisboard->name, dev)) {
 			int i;
 			/* unroll the allocated irqs.. */
 			for (i = asic - 1; i >= 0; --i) {
-				comedi_free_irq(irq[i], dev);
+				free_irq(irq[i], dev);
 				devpriv->asics[i].irq = irq[i] = 0;
 			}
 			irq[asic] = 0;
@@ -536,7 +536,7 @@ static int pcmmio_detach(struct comedi_device *dev)
 
 	for (i = 0; i < MAX_ASICS; ++i) {
 		if (devpriv && devpriv->asics[i].irq)
-			comedi_free_irq(devpriv->asics[i].irq, dev);
+			free_irq(devpriv->asics[i].irq, dev);
 	}
 
 	if (devpriv && devpriv->sprivs)
@@ -778,8 +778,7 @@ static irqreturn_t interrupt_pcmmio(int irq, void *d)
 			/* it is an interrupt for ASIC #asic */
 			unsigned char int_pend;
 
-			comedi_spin_lock_irqsave(&devpriv->asics[asic].spinlock,
-				flags);
+			spin_lock_irqsave(&devpriv->asics[asic].spinlock, flags);
 
 			int_pend = inb(iobase + REG_INT_PENDING) & 0x07;
 
@@ -811,8 +810,7 @@ static irqreturn_t interrupt_pcmmio(int irq, void *d)
 				++got1;
 			}
 
-			comedi_spin_unlock_irqrestore(&devpriv->asics[asic].
-				spinlock, flags);
+			spin_unlock_irqrestore(&devpriv->asics[asic].  spinlock, flags);
 
 			if (triggered) {
 				struct comedi_subdevice *s;
@@ -825,9 +823,7 @@ static irqreturn_t interrupt_pcmmio(int irq, void *d)
 						unsigned long flags;
 						unsigned oldevents;
 
-						comedi_spin_lock_irqsave
-							(&subpriv->dio.intr.
-							spinlock, flags);
+						spin_lock_irqsave(&subpriv->dio.intr.spinlock, flags);
 
 						oldevents = s->async->events;
 
@@ -896,9 +892,7 @@ static irqreturn_t interrupt_pcmmio(int irq, void *d)
 							}
 						}
 
-						comedi_spin_unlock_irqrestore
-							(&subpriv->dio.intr.
-							spinlock, flags);
+						spin_unlock_irqrestore(&subpriv->dio.intr.spinlock, flags);
 
 						if (oldevents !=
 							s->async->events) {
@@ -1001,10 +995,10 @@ static int pcmmio_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&subpriv->dio.intr.spinlock, flags);
+	spin_lock_irqsave(&subpriv->dio.intr.spinlock, flags);
 	if (subpriv->dio.intr.active)
 		pcmmio_stop_intr(dev, s);
-	comedi_spin_unlock_irqrestore(&subpriv->dio.intr.spinlock, flags);
+	spin_unlock_irqrestore(&subpriv->dio.intr.spinlock, flags);
 
 	return 0;
 }
@@ -1022,12 +1016,12 @@ pcmmio_inttrig_start_intr(struct comedi_device *dev, struct comedi_subdevice *s,
 	if (trignum != 0)
 		return -EINVAL;
 
-	comedi_spin_lock_irqsave(&subpriv->dio.intr.spinlock, flags);
+	spin_lock_irqsave(&subpriv->dio.intr.spinlock, flags);
 	s->async->inttrig = 0;
 	if (subpriv->dio.intr.active) {
 		event = pcmmio_start_intr(dev, s);
 	}
-	comedi_spin_unlock_irqrestore(&subpriv->dio.intr.spinlock, flags);
+	spin_unlock_irqrestore(&subpriv->dio.intr.spinlock, flags);
 
 	if (event) {
 		comedi_event(dev, s);
@@ -1045,7 +1039,7 @@ static int pcmmio_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	unsigned long flags;
 	int event = 0;
 
-	comedi_spin_lock_irqsave(&subpriv->dio.intr.spinlock, flags);
+	spin_lock_irqsave(&subpriv->dio.intr.spinlock, flags);
 	subpriv->dio.intr.active = 1;
 
 	/* Set up end of acquisition. */
@@ -1071,7 +1065,7 @@ static int pcmmio_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		event = pcmmio_start_intr(dev, s);
 		break;
 	}
-	comedi_spin_unlock_irqrestore(&subpriv->dio.intr.spinlock, flags);
+	spin_unlock_irqrestore(&subpriv->dio.intr.spinlock, flags);
 
 	if (event) {
 		comedi_event(dev, s);
diff --git a/drivers/staging/comedi/drivers/pcmuio.c b/drivers/staging/comedi/drivers/pcmuio.c
index c28e6dfd0f9c..291b6d963fd9 100644
--- a/drivers/staging/comedi/drivers/pcmuio.c
+++ b/drivers/staging/comedi/drivers/pcmuio.c
@@ -322,7 +322,7 @@ static int pcmuio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		devpriv->asics[asic].iobase = dev->iobase + asic * ASIC_IOSIZE;
 		devpriv->asics[asic].irq = 0;	/* this gets actually set at the end of
 						   this function when we
-						   comedi_request_irqs */
+						   request_irqs */
 		spin_lock_init(&devpriv->asics[asic].spinlock);
 	}
 
@@ -413,12 +413,12 @@ static int pcmuio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	for (asic = 0; irq[0] && asic < MAX_ASICS; ++asic) {
 		if (irq[asic]
-			&& comedi_request_irq(irq[asic], interrupt_pcmuio,
+			&& request_irq(irq[asic], interrupt_pcmuio,
 				IRQF_SHARED, thisboard->name, dev)) {
 			int i;
 			/* unroll the allocated irqs.. */
 			for (i = asic - 1; i >= 0; --i) {
-				comedi_free_irq(irq[i], dev);
+				free_irq(irq[i], dev);
 				devpriv->asics[i].irq = irq[i] = 0;
 			}
 			irq[asic] = 0;
@@ -460,7 +460,7 @@ static int pcmuio_detach(struct comedi_device *dev)
 
 	for (i = 0; i < MAX_ASICS; ++i) {
 		if (devpriv->asics[i].irq)
-			comedi_free_irq(devpriv->asics[i].irq, dev);
+			free_irq(devpriv->asics[i].irq, dev);
 	}
 
 	if (devpriv && devpriv->sprivs)
@@ -701,8 +701,7 @@ static irqreturn_t interrupt_pcmuio(int irq, void *d)
 			/* it is an interrupt for ASIC #asic */
 			unsigned char int_pend;
 
-			comedi_spin_lock_irqsave(&devpriv->asics[asic].spinlock,
-				flags);
+			spin_lock_irqsave(&devpriv->asics[asic].spinlock, flags);
 
 			int_pend = inb(iobase + REG_INT_PENDING) & 0x07;
 
@@ -734,8 +733,7 @@ static irqreturn_t interrupt_pcmuio(int irq, void *d)
 				++got1;
 			}
 
-			comedi_spin_unlock_irqrestore(&devpriv->asics[asic].
-				spinlock, flags);
+			spin_unlock_irqrestore(&devpriv->asics[asic].spinlock, flags);
 
 			if (triggered) {
 				struct comedi_subdevice *s;
@@ -748,9 +746,7 @@ static irqreturn_t interrupt_pcmuio(int irq, void *d)
 						unsigned long flags;
 						unsigned oldevents;
 
-						comedi_spin_lock_irqsave
-							(&subpriv->intr.
-							spinlock, flags);
+						spin_lock_irqsave (&subpriv->intr.spinlock, flags);
 
 						oldevents = s->async->events;
 
@@ -816,9 +812,7 @@ static irqreturn_t interrupt_pcmuio(int irq, void *d)
 							}
 						}
 
-						comedi_spin_unlock_irqrestore
-							(&subpriv->intr.
-							spinlock, flags);
+						spin_unlock_irqrestore(&subpriv->intr.spinlock, flags);
 
 						if (oldevents !=
 							s->async->events) {
@@ -911,10 +905,10 @@ static int pcmuio_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&subpriv->intr.spinlock, flags);
+	spin_lock_irqsave(&subpriv->intr.spinlock, flags);
 	if (subpriv->intr.active)
 		pcmuio_stop_intr(dev, s);
-	comedi_spin_unlock_irqrestore(&subpriv->intr.spinlock, flags);
+	spin_unlock_irqrestore(&subpriv->intr.spinlock, flags);
 
 	return 0;
 }
@@ -932,12 +926,12 @@ pcmuio_inttrig_start_intr(struct comedi_device *dev, struct comedi_subdevice *s,
 	if (trignum != 0)
 		return -EINVAL;
 
-	comedi_spin_lock_irqsave(&subpriv->intr.spinlock, flags);
+	spin_lock_irqsave(&subpriv->intr.spinlock, flags);
 	s->async->inttrig = 0;
 	if (subpriv->intr.active) {
 		event = pcmuio_start_intr(dev, s);
 	}
-	comedi_spin_unlock_irqrestore(&subpriv->intr.spinlock, flags);
+	spin_unlock_irqrestore(&subpriv->intr.spinlock, flags);
 
 	if (event) {
 		comedi_event(dev, s);
@@ -955,7 +949,7 @@ static int pcmuio_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	unsigned long flags;
 	int event = 0;
 
-	comedi_spin_lock_irqsave(&subpriv->intr.spinlock, flags);
+	spin_lock_irqsave(&subpriv->intr.spinlock, flags);
 	subpriv->intr.active = 1;
 
 	/* Set up end of acquisition. */
@@ -981,7 +975,7 @@ static int pcmuio_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		event = pcmuio_start_intr(dev, s);
 		break;
 	}
-	comedi_spin_unlock_irqrestore(&subpriv->intr.spinlock, flags);
+	spin_unlock_irqrestore(&subpriv->intr.spinlock, flags);
 
 	if (event) {
 		comedi_event(dev, s);
diff --git a/drivers/staging/comedi/drivers/plx9080.h b/drivers/staging/comedi/drivers/plx9080.h
index 9231ba802030..e4bbd5dc9a61 100644
--- a/drivers/staging/comedi/drivers/plx9080.h
+++ b/drivers/staging/comedi/drivers/plx9080.h
@@ -399,11 +399,11 @@ static inline int plx9080_abort_dma(void *iobase, unsigned int channel)
 
 	/*  wait to make sure done bit is zero */
 	for (i = 0; (dma_status & PLX_DMA_DONE_BIT) && i < timeout; i++) {
-		comedi_udelay(1);
+		udelay(1);
 		dma_status = readb(dma_cs_addr);
 	}
 	if (i == timeout) {
-		rt_printk
+		printk
 			("plx9080: cancel() timed out waiting for dma %i done clear\n",
 			channel);
 		return -ETIMEDOUT;
@@ -413,11 +413,11 @@ static inline int plx9080_abort_dma(void *iobase, unsigned int channel)
 	/*  wait for dma done bit */
 	dma_status = readb(dma_cs_addr);
 	for (i = 0; (dma_status & PLX_DMA_DONE_BIT) == 0 && i < timeout; i++) {
-		comedi_udelay(1);
+		udelay(1);
 		dma_status = readb(dma_cs_addr);
 	}
 	if (i == timeout) {
-		rt_printk
+		printk
 			("plx9080: cancel() timed out waiting for dma %i done set\n",
 			channel);
 		return -ETIMEDOUT;
diff --git a/drivers/staging/comedi/drivers/rtd520.c b/drivers/staging/comedi/drivers/rtd520.c
index 6af081b04a0c..3536ec5fbfce 100644
--- a/drivers/staging/comedi/drivers/rtd520.c
+++ b/drivers/staging/comedi/drivers/rtd520.c
@@ -135,7 +135,7 @@ Configuration options:
 #define RTD_DMA_TIMEOUT	33000	/* 1 msec */
 #else
 /* by delaying, power and electrical noise are reduced somewhat */
-#define WAIT_QUIETLY	comedi_udelay (1)
+#define WAIT_QUIETLY	udelay (1)
 #define RTD_ADC_TIMEOUT	2000	/* in usec */
 #define RTD_DAC_TIMEOUT	2000	/* in usec */
 #define RTD_DMA_TIMEOUT	1000	/* in usec */
@@ -900,7 +900,7 @@ static int rtd_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	/* initialize board, per RTD spec */
 	/* also, initialize shadow registers */
 	RtdResetBoard(dev);
-	comedi_udelay(100);	/* needed? */
+	udelay(100);	/* needed? */
 	RtdPlxInterruptWrite(dev, 0);
 	RtdInterruptMask(dev, 0);	/* and sets shadow */
 	RtdInterruptClearMask(dev, ~0);	/* and sets shadow */
@@ -919,7 +919,7 @@ static int rtd_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	/* TODO: set user out source ??? */
 
 	/* check if our interrupt is available and get it */
-	ret = comedi_request_irq(devpriv->pci_dev->irq, rtd_interrupt,
+	ret = request_irq(devpriv->pci_dev->irq, rtd_interrupt,
 				 IRQF_SHARED, DRV_NAME, dev);
 
 	if (ret < 0) {
@@ -1032,7 +1032,7 @@ static int rtd_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		/* disable interrupt controller */
 		RtdPlxInterruptWrite(dev, RtdPlxInterruptRead(dev)
 			& ~(ICS_PLIE | ICS_DMA0_E | ICS_DMA1_E));
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 
 	/* release all regions that were allocated */
@@ -1111,7 +1111,7 @@ static int rtd_detach(struct comedi_device *dev)
 			/* disable interrupt controller */
 			RtdPlxInterruptWrite(dev, RtdPlxInterruptRead(dev)
 				& ~(ICS_PLIE | ICS_DMA0_E | ICS_DMA1_E));
-			comedi_free_irq(dev->irq, dev);
+			free_irq(dev->irq, dev);
 		}
 
 		/* release all regions that were allocated */
@@ -1224,7 +1224,7 @@ static int rtd520_probe_fifo_depth(struct comedi_device *dev)
 		unsigned fifo_status;
 		/* trigger conversion */
 		RtdAdcStart(dev);
-		comedi_udelay(1);
+		udelay(1);
 		fifo_status = RtdFifoStatus(dev);
 		if ((fifo_status & FS_ADC_HEMPTY) == 0) {
 			fifo_size = 2 * i;
@@ -1233,13 +1233,13 @@ static int rtd520_probe_fifo_depth(struct comedi_device *dev)
 	}
 	if (i == limit)
 	{
-		rt_printk("\ncomedi: %s: failed to probe fifo size.\n", DRV_NAME);
+		printk("\ncomedi: %s: failed to probe fifo size.\n", DRV_NAME);
 		return -EIO;
 	}
 	RtdAdcClearFifo(dev);
 	if (fifo_size != 0x400 && fifo_size != 0x2000)
 	{
-		rt_printk("\ncomedi: %s: unexpected fifo size of %i, expected 1024 or 8192.\n",
+		printk("\ncomedi: %s: unexpected fifo size of %i, expected 1024 or 8192.\n",
 			DRV_NAME, fifo_size);
 		return -EIO;
 	}
@@ -1386,7 +1386,7 @@ void abort_dma(struct comedi_device *dev, unsigned int channel)
 		+ ((channel == 0) ? LCFG_DMACSR0 : LCFG_DMACSR1);
 
 	/*  spinlock for plx dma control/status reg */
-	/* comedi_spin_lock_irqsave( &dev->spinlock, flags ); */
+	/* spin_lock_irqsave( &dev->spinlock, flags ); */
 
 	/*  abort dma transfer if necessary */
 	status = readb(dma_cs_addr);
@@ -1409,7 +1409,7 @@ void abort_dma(struct comedi_device *dev, unsigned int channel)
 
 	/* disable channel (required) */
 	writeb(0, dma_cs_addr);
-	comedi_udelay(1);	/* needed?? */
+	udelay(1);	/* needed?? */
 	/* set abort bit for channel */
 	writeb(PLX_DMA_ABORT_BIT, dma_cs_addr);
 
@@ -1427,7 +1427,7 @@ void abort_dma(struct comedi_device *dev, unsigned int channel)
 	}
 
       abortDmaExit:
-	/* comedi_spin_unlock_irqrestore( &dev->spinlock, flags ); */
+	/* spin_unlock_irqrestore( &dev->spinlock, flags ); */
 }
 
 /*
diff --git a/drivers/staging/comedi/drivers/rti800.c b/drivers/staging/comedi/drivers/rti800.c
index 3986459a1645..46b5e3fb6742 100644
--- a/drivers/staging/comedi/drivers/rti800.c
+++ b/drivers/staging/comedi/drivers/rti800.c
@@ -200,7 +200,7 @@ static int rti800_ai_insn_read(struct comedi_device *dev, struct comedi_subdevic
 		 * gets set, and you will have an error. */
 		if (insn->n > 0) {
 			BUG_ON(gain >= ARRAY_SIZE(gaindelay));
-			comedi_udelay(gaindelay[gain]);
+			udelay(gaindelay[gain]);
 		}
 	}
 
@@ -209,16 +209,16 @@ static int rti800_ai_insn_read(struct comedi_device *dev, struct comedi_subdevic
 		for (t = RTI800_TIMEOUT; t; t--) {
 			status = inb(dev->iobase + RTI800_CSR);
 			if (status & RTI800_OVERRUN) {
-				rt_printk("rti800: a/d overrun\n");
+				printk("rti800: a/d overrun\n");
 				outb(0, dev->iobase + RTI800_CLRFLAGS);
 				return -EIO;
 			}
 			if (status & RTI800_DONE)
 				break;
-			comedi_udelay(1);
+			udelay(1);
 		}
 		if (t == 0) {
-			rt_printk("rti800: timeout\n");
+			printk("rti800: timeout\n");
 			return -ETIME;
 		}
 		data[i] = inb(dev->iobase + RTI800_ADCLO);
@@ -338,8 +338,7 @@ static int rti800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	irq = it->options[1];
 	if (irq) {
 		printk("( irq = %u )", irq);
-		ret = comedi_request_irq(irq, rti800_interrupt, 0,
-					 "rti800", dev);
+		ret = request_irq(irq, rti800_interrupt, 0, "rti800", dev);
 		if (ret < 0) {
 			printk(" Failed to allocate IRQ\n");
 			return ret;
@@ -455,7 +454,7 @@ static int rti800_detach(struct comedi_device *dev)
 		release_region(dev->iobase, RTI800_SIZE);
 
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	return 0;
 }
diff --git a/drivers/staging/comedi/drivers/s526.c b/drivers/staging/comedi/drivers/s526.c
index 7a6be1ee8f61..d9509d7a3283 100644
--- a/drivers/staging/comedi/drivers/s526.c
+++ b/drivers/staging/comedi/drivers/s526.c
@@ -850,9 +850,9 @@ static int s526_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 			}
 		}
 		if (i == TIMEOUT) {
-			/* rt_printk() should be used instead of printk()
+			/* printk() should be used instead of printk()
 			 * whenever the code can be called from real-time. */
-			rt_printk("s526: ADC(0x%04x) timeout\n",
+			printk("s526: ADC(0x%04x) timeout\n",
 				inw(ADDR_REG(REG_ISR)));
 			return -ETIMEDOUT;
 		}
diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index ff8ec589298c..bebc12bf3891 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -596,8 +596,8 @@ static int s626_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (dev->irq == 0) {
 		printk(" unknown irq (bad)\n");
 	} else {
-		ret = comedi_request_irq(dev->irq, s626_irq_handler,
-					 IRQF_SHARED, "s626", dev);
+		ret = request_irq(dev->irq, s626_irq_handler, IRQF_SHARED,
+				  "s626", dev);
 
 		if (ret < 0) {
 			printk(" irq not available\n");
@@ -987,7 +987,7 @@ static irqreturn_t s626_irq_handler(int irq, void *d)
 	if (dev->attached == 0)
 		return IRQ_NONE;
 	/*  lock to avoid race with comedi_poll */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 
 	/* save interrupt enable register state */
 	irqstatus = readl(devpriv->base_addr + P_IER);
@@ -1264,7 +1264,7 @@ static irqreturn_t s626_irq_handler(int irq, void *d)
 
 	DEBUG("s626_irq_handler: exit interrupt service routine.\n");
 
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 	return IRQ_HANDLED;
 }
 
@@ -1291,7 +1291,7 @@ static int s626_detach(struct comedi_device *dev)
 		}
 
 		if (dev->irq)
-			comedi_free_irq(dev->irq, dev);
+			free_irq(dev->irq, dev);
 
 		if (devpriv->base_addr)
 			iounmap(devpriv->base_addr);
@@ -1574,7 +1574,7 @@ static int s626_ai_insn_read(struct comedi_device *dev, struct comedi_subdevice
 	for (n = 0; n < insn->n; n++) {
 
 		/*  Delay 10 microseconds for analog input settling. */
-		comedi_udelay(10);
+		udelay(10);
 
 		/*  Start ADC by pulsing GPIO1 low. */
 		GpioImage = RR7146(P_GPIO);
@@ -1606,7 +1606,7 @@ static int s626_ai_insn_read(struct comedi_device *dev, struct comedi_subdevice
 		 * data value is sometimes set to the previous
 		 * conversion's data value.
 		 */
-		comedi_udelay(4);
+		udelay(4);
 	}
 
 	/* Start a dummy conversion to cause the data from the
diff --git a/drivers/staging/comedi/drivers/s626.h b/drivers/staging/comedi/drivers/s626.h
index 891126f25099..27ae02be5300 100644
--- a/drivers/staging/comedi/drivers/s626.h
+++ b/drivers/staging/comedi/drivers/s626.h
@@ -63,7 +63,7 @@
 */
 
 #ifdef _DEBUG_
-#define DEBUG(...);        rt_printk(__VA_ARGS__);
+#define DEBUG(...);        printk(__VA_ARGS__);
 #else
 #define DEBUG(...)
 #endif
diff --git a/drivers/staging/comedi/drivers/serial2002.c b/drivers/staging/comedi/drivers/serial2002.c
index 89f97e85eff3..db18b11b9d30 100644
--- a/drivers/staging/comedi/drivers/serial2002.c
+++ b/drivers/staging/comedi/drivers/serial2002.c
@@ -223,7 +223,7 @@ static int tty_read(struct file *f, int timeout)
 					result = ch;
 					break;
 				}
-				comedi_udelay(100);
+				udelay(100);
 			}
 		}
 		set_fs(oldfs);
diff --git a/drivers/staging/comedi/drivers/skel.c b/drivers/staging/comedi/drivers/skel.c
index b73518129f85..07f580a48206 100644
--- a/drivers/staging/comedi/drivers/skel.c
+++ b/drivers/staging/comedi/drivers/skel.c
@@ -331,9 +331,9 @@ static int skel_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 				break;
 		}
 		if (i == TIMEOUT) {
-			/* rt_printk() should be used instead of printk()
+			/* printk() should be used instead of printk()
 			 * whenever the code can be called from real-time. */
-			rt_printk("timeout\n");
+			printk("timeout\n");
 			return -ETIMEDOUT;
 		}
 
diff --git a/drivers/staging/comedi/drivers/unioxx5.c b/drivers/staging/comedi/drivers/unioxx5.c
index e308f5f89305..96bb15ccccb1 100644
--- a/drivers/staging/comedi/drivers/unioxx5.c
+++ b/drivers/staging/comedi/drivers/unioxx5.c
@@ -311,7 +311,7 @@ static int __unioxx5_subdev_init(struct comedi_subdevice *subdev, int subdev_iob
 			usp->usp_module_type[i] = inb(subdev_iobase + 6);
 
 		printk(" [%d] 0x%02x |", i, usp->usp_module_type[i]);
-		comedi_udelay(1);
+		udelay(1);
 	}
 
 	printk("\n");
diff --git a/drivers/staging/comedi/kcomedilib/data.c b/drivers/staging/comedi/kcomedilib/data.c
index 9797e13e3774..3e5fe2c87092 100644
--- a/drivers/staging/comedi/kcomedilib/data.c
+++ b/drivers/staging/comedi/kcomedilib/data.c
@@ -23,7 +23,7 @@
 
 #include "../comedi.h"
 #include "../comedilib.h"
-#include "../comedidev.h"	/* for comedi_udelay() */
+#include "../comedidev.h"
 
 #include <linux/string.h>
 
@@ -83,7 +83,7 @@ int comedi_data_read_delayed(void *dev, unsigned int subdev,
 	if (retval < 0)
 		return retval;
 
-	comedi_udelay((nano_sec + 999) / 1000);
+	udelay((nano_sec + 999) / 1000);
 
 	return comedi_data_read(dev, subdev, chan, range, aref, data);
 }
diff --git a/drivers/staging/comedi/kcomedilib/kcomedilib_main.c b/drivers/staging/comedi/kcomedilib/kcomedilib_main.c
index a4fa9571c58f..95f0dde8d3e6 100644
--- a/drivers/staging/comedi/kcomedilib/kcomedilib_main.c
+++ b/drivers/staging/comedi/kcomedilib/kcomedilib_main.c
@@ -105,7 +105,7 @@ int comedi_loglevel(int newlevel)
 
 void comedi_perror(const char *message)
 {
-	rt_printk("%s: unknown error\n", message);
+	printk("%s: unknown error\n", message);
 }
 
 char *comedi_strerror(int err)
@@ -208,7 +208,7 @@ int comedi_do_insn(void *d, struct comedi_insn *insn)
 				ret = -EINVAL;
 				break;
 			}
-			comedi_udelay(insn->data[0]);
+			udelay(insn->data[0]);
 			ret = 1;
 			break;
 		case INSN_INTTRIG:
@@ -217,19 +217,19 @@ int comedi_do_insn(void *d, struct comedi_insn *insn)
 				break;
 			}
 			if (insn->subdev >= dev->n_subdevices) {
-				rt_printk("%d not usable subdevice\n",
+				printk("%d not usable subdevice\n",
 					insn->subdev);
 				ret = -EINVAL;
 				break;
 			}
 			s = dev->subdevices + insn->subdev;
 			if (!s->async) {
-				rt_printk("no async\n");
+				printk("no async\n");
 				ret = -EINVAL;
 				break;
 			}
 			if (!s->async->inttrig) {
-				rt_printk("no inttrig\n");
+				printk("no inttrig\n");
 				ret = -EAGAIN;
 				break;
 			}
@@ -249,7 +249,7 @@ int comedi_do_insn(void *d, struct comedi_insn *insn)
 		s = dev->subdevices + insn->subdev;
 
 		if (s->type == COMEDI_SUBD_UNUSED) {
-			rt_printk("%d not useable subdevice\n", insn->subdev);
+			printk("%d not useable subdevice\n", insn->subdev);
 			ret = -EIO;
 			goto error;
 		}
@@ -258,7 +258,7 @@ int comedi_do_insn(void *d, struct comedi_insn *insn)
 
 		ret = check_chanlist(s, 1, &insn->chanspec);
 		if (ret < 0) {
-			rt_printk("bad chanspec\n");
+			printk("bad chanspec\n");
 			ret = -EINVAL;
 			goto error;
 		}
@@ -295,7 +295,7 @@ int comedi_do_insn(void *d, struct comedi_insn *insn)
 #if 0
 	/* XXX do we want this? -- abbotti #if'ed it out for now. */
 	if (ret != insn->n) {
-		rt_printk("BUG: result of insn != insn.n\n");
+		printk("BUG: result of insn != insn.n\n");
 		ret = -EINVAL;
 		goto error;
 	}
@@ -336,7 +336,7 @@ int comedi_lock(void *d, unsigned int subdevice)
 
 	s = dev->subdevices + subdevice;
 
-	comedi_spin_lock_irqsave(&s->spin_lock, flags);
+	spin_lock_irqsave(&s->spin_lock, flags);
 
 	if (s->busy) {
 		ret = -EBUSY;
@@ -348,7 +348,7 @@ int comedi_lock(void *d, unsigned int subdevice)
 		}
 	}
 
-	comedi_spin_unlock_irqrestore(&s->spin_lock, flags);
+	spin_unlock_irqrestore(&s->spin_lock, flags);
 
 	return ret;
 }
@@ -382,7 +382,7 @@ int comedi_unlock(void *d, unsigned int subdevice)
 
 	async = s->async;
 
-	comedi_spin_lock_irqsave(&s->spin_lock, flags);
+	spin_lock_irqsave(&s->spin_lock, flags);
 
 	if (s->busy) {
 		ret = -EBUSY;
@@ -400,7 +400,7 @@ int comedi_unlock(void *d, unsigned int subdevice)
 		ret = 0;
 	}
 
-	comedi_spin_unlock_irqrestore(&s->spin_lock, flags);
+	spin_unlock_irqrestore(&s->spin_lock, flags);
 
 	return ret;
 }
diff --git a/drivers/staging/comedi/range.c b/drivers/staging/comedi/range.c
index d09f0bba0814..445909e6f334 100644
--- a/drivers/staging/comedi/range.c
+++ b/drivers/staging/comedi/range.c
@@ -130,8 +130,7 @@ int check_chanlist(struct comedi_subdevice *s, int n, unsigned int *chanlist)
 			if (CR_CHAN(chanlist[i]) >= s->n_chan ||
 				CR_RANGE(chanlist[i]) >= s->range_table->length
 				|| aref_invalid(s, chanlist[i])) {
-				rt_printk
-					("bad chanlist[%d]=0x%08x n_chan=%d range length=%d\n",
+				printk("bad chanlist[%d]=0x%08x n_chan=%d range length=%d\n",
 					i, chanlist[i], s->n_chan,
 					s->range_table->length);
 #if 0
@@ -147,13 +146,13 @@ int check_chanlist(struct comedi_subdevice *s, int n, unsigned int *chanlist)
 				CR_RANGE(chanlist[i]) >=
 				s->range_table_list[chan]->length
 				|| aref_invalid(s, chanlist[i])) {
-				rt_printk("bad chanlist[%d]=0x%08x\n", i,
+				printk("bad chanlist[%d]=0x%08x\n", i,
 					chanlist[i]);
 				return -EINVAL;
 			}
 		}
 	} else {
-		rt_printk("comedi: (bug) no range type list!\n");
+		printk("comedi: (bug) no range type list!\n");
 		return -EINVAL;
 	}
 	return 0;