Commit Graph

39 Commits

Author SHA1 Message Date
Kees Cook bc47ba90b0 ALSA: drivers: Convert timers to use timer_setup()
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-10-24 21:01:16 +02:00
David Howells b11ce420c5 Annotate hardware config module parameters in sound/drivers/
When the kernel is running in secure boot mode, we lock down the kernel to
prevent userspace from modifying the running kernel image.  Whilst this
includes prohibiting access to things like /dev/mem, it must also prevent
access by means of configuring driver modules in such a way as to cause a
device to access or modify the kernel image.

To this end, annotate module_param* statements that refer to hardware
configuration and indicate for future reference what type of parameter they
specify.  The parameter parser in the core sees this information and can
skip such parameters with an error message if the kernel is locked down.
The module initialisation then runs as normal, but just sees whatever the
default values for those parameters is.

Note that we do still need to do the module initialisation because some
drivers have viable defaults set in case parameters aren't specified and
some drivers support automatic configuration (e.g. PNP or PCI) in addition
to manually coded parameters.

This patch annotates drivers in sound/drivers/.

Suggested-by: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
cc: Jaroslav Kysela <perex@perex.cz>
cc: alsa-devel@alsa-project.org
2017-04-20 12:02:32 +01:00
Takashi Iwai c36f486d7b ALSA: drivers: Constify snd_rawmidi_ops
Now snd_rawmidi_ops is maintained as a const pointer in snd_rawmidi,
we can constify the definitions.

Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-12 12:50:06 +01:00
Takashi Iwai 6cbbfe1c8d ALSA: Include linux/io.h instead of asm/io.h
Nowadays it's recommended.  Replace all in a shot.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-28 16:49:33 +01:00
Takashi Iwai d80d05fcca ALSA: serial-u16550: Use setup_timer() and mod_timer()
No functional change, refactoring with the standard helpers.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-19 11:32:26 +01:00
Wolfram Sang 5d5638afa0 ALSA: drivers: drop owner assignment from platform_drivers
A platform_driver does not need to set an owner, it will be populated by the
driver core.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-10-20 16:21:59 +02:00
Takashi Iwai 5872f3f621 ALSA: drivers: Convert to snd_card_new() with a device pointer
Also remove superfluous snd_card_set_dev() calls.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-02-12 10:58:20 +01:00
Sachin Kamat 45837cb214 ALSA: serial-u16550: Remove redundant platform_set_drvdata()
Commit 0998d06310 (device-core: Ensure drvdata = NULL when no
driver is bound) removes the need to set driver data field to
NULL.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-05-23 14:35:45 +02:00
Bill Pemberton fbbb01a12d ALSA: drivers: remove __dev* attributes
CONFIG_HOTPLUG is going away as an option.  As result the __dev*
markings will be going away.

Remove use of __devinit, __devexit_p, __devinitdata, __devinitconst,
and __devexit.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-12-07 07:34:32 +01:00
Takashi Iwai 8bf01d8abc ALSA: Add missing .owner=THIS_MODULE to platform_driver definitions
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-07-02 17:50:05 +02:00
Rusty Russell a67ff6a540 ALSA: module_param: make bool parameters really bool
module_param(bool) used to counter-intuitively take an int.  In
fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy
trick.

It's time to remove the int/unsigned int option.  For this version
it'll simply give a warning, but it'll break next kernel version.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-12-19 10:34:41 +01:00
Paul Gortmaker 65a772172b sound: fix drivers needing module.h not moduleparam.h
The implicit presence of module.h lured several users into
incorrectly thinking that they only needed/used modparam.h
but once we clean up the module.h presence, these will show
up as build failures, so fix 'em now.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31 19:31:19 -04:00
Yong Zhang 88e24c3a4b sound: irq: Remove IRQF_DISABLED
Since commit [e58aa3d2: genirq: Run irq handlers with interrupts disabled],
We run all interrupt handlers with interrupts disabled
and we even check and yell when an interrupt handler
returns with interrupts enabled (see commit [b738a50a:
genirq: Warn when handler enables interrupts]).

So now this flag is a NOOP and can be removed.

Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-09-22 11:19:20 +02:00
Clemens Ladisch bd0185ceac sound: serial-u16550: fix buffer overflow
Remove most of the serial port parameters from the card longname string
because it was way too long and overflowed into the mixername string.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-05-05 16:01:18 +02:00
Takashi Iwai e0d2054fd3 Merge branch 'topic/misc' into for-linus 2009-03-24 00:35:50 +01:00
Takashi Iwai 45203832df ALSA: Add missing KERN_* prefix to printk in sound/drivers
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-02-05 16:00:56 +01:00
Takashi Iwai bd7dd77c2a ALSA: Convert to snd_card_create() in other sound/*
Convert from snd_card_new() to the new snd_card_create() function
in other sound subdirectories.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-01-12 15:21:19 +01:00
Takashi Iwai 9004acc70e [ALSA] Remove sound/driver.h
This header file exists only for some hacks to adapt alsa-driver
tree.  It's useless for building in the kernel.  Let's move a few
lines in it to sound/core.h and remove it.
With this patch, sound/driver.h isn't removed but has just a single
compile warning to include it.  This should be really killed in
future.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:29:48 +01:00
Julia Lawall f11b799282 [ALSA] sound: Use time_before, time_before_eq, etc.
The functions time_before, time_before_eq, time_after, and time_after_eq
are more robust for comparing jiffies against other values.
A simplified version of the semantic patch making this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@ change_compare_np @
expression E;
@@
(
- jiffies <= E
+ time_before_eq(jiffies,E)
|
- jiffies >= E
+ time_after_eq(jiffies,E)
|
- jiffies < E
+ time_before(jiffies,E)
|
- jiffies > E
+ time_after(jiffies,E)
)
@ include depends on change_compare_np @
@@
#include <linux/jiffies.h>
@ no_include depends on !include && change_compare_np @
@@
  #include <linux/...>
+ #include <linux/jiffies.h>
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:29:45 +01:00
Joe Perches 561de31a23 [ALSA] sound/: Spelling fixes
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:29:41 +01:00
Jaroslav Kysela c1017a4cdb [ALSA] Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.cz
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2007-10-16 16:51:18 +02:00
Randy Dunlap bdec0c7282 [ALSA] fix section mismatch
Fix shared init/exit function attributes:
WARNING: sound/built-in.o(.exit.text+0x4a1): Section mismatch: reference to .init.text: (between 'alsa_card_virmidi_exit' and 'alsa_card_serial_exit')
WARNING: sound/built-in.o(.exit.text+0x4c1): Section mismatch: reference to .init.text: (between 'alsa_card_serial_exit' and 'ac97_bus_exit')

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-07-20 11:11:33 +02:00
Prarit Bhargava 788c604333 [ALSA] Fix __devinit and __devexit issues with sound drivers
Fix __devinit and __devexit issues with sound drivers.
Resolves MODPOST warnings similar to:
WARNING: sound/drivers/snd-dummy.o - Section mismatch: reference to .init.text:snd_dummy_probe from .data.rel.local between 'snd_dummy_driver' (at offset 0x0) and 'snd_dummy_controls'
WARNING: sound/drivers/snd-mtpav.o - Section mismatch: reference to .init.text:snd_mtpav_probe from .data.rel.local between 'snd_mtpav_driver' (at offset 0x0) and 'snd_mtpav_input'
WARNING: sound/drivers/snd-virmidi.o - Section mismatch: reference to .init.text:snd_virmidi_probe from .data.rel.local after 'snd_virmidi_driver' (at offset 0x0)

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-02-14 08:38:28 +01:00
Takashi Iwai 0b830bac35 [ALSA] Clean up serial-u16500.c
Remove uesless typedefs and clean up the code a bit to follow
the standard coding style.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-02-09 09:01:58 +01:00
David Howells 7d12e780e0 IRQ: Maintain regs pointer globally rather than passing to IRQ handlers
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
of passing regs around manually through all ~1800 interrupt handlers in the
Linux kernel.

The regs pointer is used in few places, but it potentially costs both stack
space and code to pass it around.  On the FRV arch, removing the regs parameter
from all the genirq function results in a 20% speed up of the IRQ exit path
(ie: from leaving timer_interrupt() to leaving do_IRQ()).

Where appropriate, an arch may override the generic storage facility and do
something different with the variable.  On FRV, for instance, the address is
maintained in GR28 at all times inside the kernel as part of general exception
handling.

Having looked over the code, it appears that the parameter may be handed down
through up to twenty or so layers of functions.  Consider a USB character
device attached to a USB hub, attached to a USB controller that posts its
interrupts through a cascaded auxiliary interrupt controller.  A character
device driver may want to pass regs to the sysrq handler through the input
layer which adds another few layers of parameter passing.

I've build this code with allyesconfig for x86_64 and i386.  I've runtested the
main part of the code on FRV and i386, though I can't test most of the drivers.
I've also done partial conversion for powerpc and MIPS - these at least compile
with minimal configurations.

This will affect all archs.  Mostly the changes should be relatively easy.
Take do_IRQ(), store the regs pointer at the beginning, saving the old one:

	struct pt_regs *old_regs = set_irq_regs(regs);

And put the old one back at the end:

	set_irq_regs(old_regs);

Don't pass regs through to generic_handle_irq() or __do_IRQ().

In timer_interrupt(), this sort of change will be necessary:

	-	update_process_times(user_mode(regs));
	-	profile_tick(CPU_PROFILING, regs);
	+	update_process_times(user_mode(get_irq_regs()));
	+	profile_tick(CPU_PROFILING);

I'd like to move update_process_times()'s use of get_irq_regs() into itself,
except that i386, alone of the archs, uses something other than user_mode().

Some notes on the interrupt handling in the drivers:

 (*) input_dev() is now gone entirely.  The regs pointer is no longer stored in
     the input_dev struct.

 (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking.  It does
     something different depending on whether it's been supplied with a regs
     pointer or not.

 (*) Various IRQ handler function pointers have been moved to type
     irq_handler_t.

Signed-Off-By: David Howells <dhowells@redhat.com>
(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 15:10:12 +01:00
Thomas Gleixner 65ca68b300 [PATCH] irq-flags: sound: Use the new IRQF_ constants
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Jaroslav Kysela <perex@suse.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-02 13:58:54 -07:00
Rene Herman 7152447df9 [ALSA] unregister platform device again if probe was unsuccessful
This second one unregisters the platform device again when the probe is
unsuccesful for sound/drivers, sound/arm/sa11xx-uda1341.c and
sound/ppc/powermac.c. This gets them all.

Signed-off-by: Rene Herman <rene.herman@keyaccess.nl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-06-22 21:32:42 +02:00
Rene Herman a182ee9876 [ALSA] continue on IS_ERR from platform device registration
I previously only concerned myself with sound/isa. When I now checked
for more platform_device_register_simple() usages in ALSA I found a
couple more drivers that needed the same patches as already submitted
for all the ISA drivers.
This first one is the continue-on-iserr patch for sound/drivers. This
gets them all.

Signed-off-by: Rene Herman <rene.herman@keyaccess.nl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-04-27 21:10:08 +02:00
Adrian Bunk 202728d783 [ALSA] fix some memory leaks
Modules: Generic drivers,ES18xx driver,CS46xx driver

This patch fixes two memory leaks spotted by the Coverity checker.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-03-22 10:38:23 +01:00
Takashi Iwai 8278ca8feb [ALSA] Fix check of enable module option
Fix the check of enable module option in probe of platform_device drivers.
It shouldn't break the loop but just ignore if enable[i] is false.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-03-22 10:30:43 +01:00
Takashi Iwai 68b8bc0521 [ALSA] serial-uart16550 - Fix a compile warning
Modules: Generic drivers

Fix a gcc-4.1 compile warning regarding uninitialized variables.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-02-01 13:09:10 +01:00
Clemens Ladisch f7a9275d94 [ALSA] unregister platform devices
Call platform_device_unregister() for all platform devices that we've
registered.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2006-01-03 12:30:39 +01:00
Takashi Iwai 9caf6b5908 [ALSA] serial-u16550 - Use platform_device
Modules: Generic drivers

Rewrite the probe/remove code using platform_device.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-01-03 12:27:11 +01:00
Takashi Iwai 4a4d2cfd8c [ALSA] Remove xxx_t typedefs: Generic drivers
Modules: Generic drivers

Remove xxx_t typedefs from the generic drivers
(dummy, mtpav, serial-u16550 and virmidi).

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-01-03 12:18:15 +01:00
Takashi Iwai b1d5776d86 [ALSA] Remove vmalloc wrapper, kfree_nocheck()
- Remove vmalloc wrapper
- Add release_and_free_resource() to remove kfree_nocheck() from each driver
  and simplify the code

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2005-11-04 13:18:00 +01:00
Takashi Iwai 561b220a4d [ALSA] Replace with kzalloc() - others
Documentation,SA11xx UDA1341 driver,Generic drivers,MPU401 UART,OPL3
OPL4,Digigram VX core,I2C cs8427,I2C lib core,I2C tea6330t,L3 drivers
AK4114 receiver,AK4117 receiver,PDAudioCF driver,PPC PMAC driver
SPARC AMD7930 driver,SPARC cs4231 driver,Synth,Common EMU synth
USB generic driver,USB USX2Y
Replace kcalloc(1,..) with kzalloc().

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2005-09-12 10:48:22 +02:00
Takashi Iwai 16dab54b8c [ALSA] Add snd_card_set_generic_dev() call
ARM,SA11xx UDA1341 driver,Generic drivers,MPU401 UART,MIPS
MIPS AU1x00 driver,PPC,PPC PowerMac driver,SPARC,SPARC AMD7930 driver
SPARC cs4231 driver,SPARC DBRI driver
- Added snd_card_set_generic_dev() call.
- Added SND_GENERIC_DRIVER to Kconfig.
- Clean up the error path in probe if necessary.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2005-09-12 10:41:56 +02:00
Jesper Juhl 77933d7276 [PATCH] clean up inline static vs static inline
`gcc -W' likes to complain if the static keyword is not at the beginning of
the declaration.  This patch fixes all remaining occurrences of "inline
static" up with "static inline" in the entire kernel tree (140 occurrences in
47 files).

While making this change I came across a few lines with trailing whitespace
that I also fixed up, I have also added or removed a blank line or two here
and there, but there are no functional changes in the patch.

Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27 16:26:20 -07:00
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00