diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 1deaddee9dd4..e1d3e0803cd5 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -831,6 +831,7 @@ config USB_G_NOKIA
 	depends on PHONET
 	select USB_LIBCOMPOSITE
 	select USB_U_SERIAL
+	select USB_F_ACM
 	help
 	  The Nokia composite gadget provides support for acm, obex
 	  and phonet in only one composite gadget driver.
diff --git a/drivers/usb/gadget/f_acm.c b/drivers/usb/gadget/f_acm.c
index 1ae180baa597..61b33d23be72 100644
--- a/drivers/usb/gadget/f_acm.c
+++ b/drivers/usb/gadget/f_acm.c
@@ -715,72 +715,6 @@ fail:
 	return status;
 }
 
-static struct f_acm *acm_alloc_basic_func(void)
-{
-	struct f_acm	*acm;
-
-	acm = kzalloc(sizeof(*acm), GFP_KERNEL);
-	if (!acm)
-		return NULL;
-
-	spin_lock_init(&acm->lock);
-
-	acm->port.connect = acm_connect;
-	acm->port.disconnect = acm_disconnect;
-	acm->port.send_break = acm_send_break;
-
-	acm->port.func.name = "acm";
-	/* descriptors are per-instance copies */
-	acm->port.func.bind = acm_bind;
-	acm->port.func.set_alt = acm_set_alt;
-	acm->port.func.setup = acm_setup;
-	acm->port.func.disable = acm_disable;
-
-	return acm;
-}
-
-#ifdef USB_FACM_INCLUDED
-static void
-acm_old_unbind(struct usb_configuration *c, struct usb_function *f)
-{
-	struct f_acm		*acm = func_to_acm(f);
-
-	usb_free_all_descriptors(f);
-	if (acm->notify_req)
-		gs_free_req(acm->notify, acm->notify_req);
-	kfree(acm);
-}
-
-/**
- * acm_bind_config - add a CDC ACM function to a configuration
- * @c: the configuration to support the CDC ACM instance
- * @port_num: /dev/ttyGS* port this interface will use
- * Context: single threaded during gadget setup
- *
- * Returns zero on success, else negative errno.
- *
- */
-int acm_bind_config(struct usb_configuration *c, u8 port_num)
-{
-	struct f_acm	*acm;
-	int		status;
-
-	/* allocate and initialize one new instance */
-	acm = acm_alloc_basic_func();
-	if (!acm)
-		return -ENOMEM;
-
-	acm->port_num = port_num;
-	acm->port.func.unbind = acm_old_unbind;
-
-	status = usb_add_function(c, &acm->port.func);
-	if (status)
-		kfree(acm);
-	return status;
-}
-
-#else
-
 static void acm_unbind(struct usb_configuration *c, struct usb_function *f)
 {
 	struct f_acm		*acm = func_to_acm(f);
@@ -803,10 +737,24 @@ static struct usb_function *acm_alloc_func(struct usb_function_instance *fi)
 	struct f_serial_opts *opts;
 	struct f_acm *acm;
 
-	acm = acm_alloc_basic_func();
+	acm = kzalloc(sizeof(*acm), GFP_KERNEL);
 	if (!acm)
 		return ERR_PTR(-ENOMEM);
 
+	spin_lock_init(&acm->lock);
+
+	acm->port.connect = acm_connect;
+	acm->port.disconnect = acm_disconnect;
+	acm->port.send_break = acm_send_break;
+
+	acm->port.func.name = "acm";
+	acm->port.func.strings = acm_strings;
+	/* descriptors are per-instance copies */
+	acm->port.func.bind = acm_bind;
+	acm->port.func.set_alt = acm_set_alt;
+	acm->port.func.setup = acm_setup;
+	acm->port.func.disable = acm_disable;
+
 	opts = container_of(fi, struct f_serial_opts, func_inst);
 	acm->port_num = opts->port_num;
 	acm->port.func.unbind = acm_unbind;
@@ -835,4 +783,3 @@ static struct usb_function_instance *acm_alloc_instance(void)
 }
 DECLARE_USB_FUNCTION_INIT(acm, acm_alloc_instance, acm_alloc_func);
 MODULE_LICENSE("GPL");
-#endif
diff --git a/drivers/usb/gadget/nokia.c b/drivers/usb/gadget/nokia.c
index def37403989a..c3ad777a2bd1 100644
--- a/drivers/usb/gadget/nokia.c
+++ b/drivers/usb/gadget/nokia.c
@@ -37,8 +37,6 @@
  * the runtime footprint, and giving us at least some parts of what
  * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
  */
-#define USB_FACM_INCLUDED
-#include "f_acm.c"
 #include "f_ecm.c"
 #include "f_obex.c"
 #include "f_serial.c"
@@ -98,7 +96,8 @@ MODULE_AUTHOR("Felipe Balbi");
 MODULE_LICENSE("GPL");
 
 /*-------------------------------------------------------------------------*/
-
+static struct usb_function *f_acm_cfg1;
+static struct usb_function *f_acm_cfg2;
 static u8 hostaddr[ETH_ALEN];
 
 enum {
@@ -110,33 +109,6 @@ enum {
 
 static unsigned char tty_lines[TTY_PORTS_MAX];
 
-static int __init nokia_bind_config(struct usb_configuration *c)
-{
-	int status = 0;
-
-	status = phonet_bind_config(c);
-	if (status)
-		printk(KERN_DEBUG "could not bind phonet config\n");
-
-	status = obex_bind_config(c, tty_lines[TTY_PORT_OBEX0]);
-	if (status)
-		printk(KERN_DEBUG "could not bind obex config %d\n", 0);
-
-	status = obex_bind_config(c, tty_lines[TTY_PORT_OBEX1]);
-	if (status)
-		printk(KERN_DEBUG "could not bind obex config %d\n", 0);
-
-	status = acm_bind_config(c, tty_lines[TTY_PORT_ACM]);
-	if (status)
-		printk(KERN_DEBUG "could not bind acm config\n");
-
-	status = ecm_bind_config(c, hostaddr);
-	if (status)
-		printk(KERN_DEBUG "could not bind ecm config\n");
-
-	return status;
-}
-
 static struct usb_configuration nokia_config_500ma_driver = {
 	.label		= "Bus Powered",
 	.bConfigurationValue = 1,
@@ -153,9 +125,55 @@ static struct usb_configuration nokia_config_100ma_driver = {
 	.MaxPower	= 100,
 };
 
+static struct usb_function_instance *fi_acm;
+
+static int __init nokia_bind_config(struct usb_configuration *c)
+{
+	struct usb_function *f_acm;
+	int status = 0;
+
+	status = phonet_bind_config(c);
+	if (status)
+		printk(KERN_DEBUG "could not bind phonet config\n");
+
+	status = obex_bind_config(c, tty_lines[TTY_PORT_OBEX0]);
+	if (status)
+		printk(KERN_DEBUG "could not bind obex config %d\n", 0);
+
+	status = obex_bind_config(c, tty_lines[TTY_PORT_OBEX1]);
+	if (status)
+		printk(KERN_DEBUG "could not bind obex config %d\n", 0);
+
+	f_acm = usb_get_function(fi_acm);
+	if (IS_ERR(f_acm))
+		return PTR_ERR(f_acm);
+
+	status = usb_add_function(c, f_acm);
+	if (status)
+		goto err_conf;
+
+	status = ecm_bind_config(c, hostaddr);
+	if (status) {
+		pr_debug("could not bind ecm config %d\n", status);
+		goto err_ecm;
+	}
+	if (c == &nokia_config_500ma_driver)
+		f_acm_cfg1 = f_acm;
+	else
+		f_acm_cfg2 = f_acm;
+
+	return status;
+err_ecm:
+	usb_remove_function(c, f_acm);
+err_conf:
+	usb_put_function(f_acm);
+	return status;
+}
+
 static int __init nokia_bind(struct usb_composite_dev *cdev)
 {
 	struct usb_gadget	*gadget = cdev->gadget;
+	struct f_serial_opts	*opts;
 	int			status;
 	int			cur_line;
 
@@ -185,22 +203,32 @@ static int __init nokia_bind(struct usb_composite_dev *cdev)
 	if (!gadget_supports_altsettings(gadget))
 		goto err_usb;
 
+	fi_acm = usb_get_function_instance("acm");
+	if (IS_ERR(fi_acm))
+		goto err_usb;
+	opts = container_of(fi_acm, struct f_serial_opts, func_inst);
+	opts->port_num = tty_lines[TTY_PORT_ACM];
+
 	/* finally register the configuration */
 	status = usb_add_config(cdev, &nokia_config_500ma_driver,
 			nokia_bind_config);
 	if (status < 0)
-		goto err_usb;
+		goto err_acm_inst;
 
 	status = usb_add_config(cdev, &nokia_config_100ma_driver,
 			nokia_bind_config);
 	if (status < 0)
-		goto err_usb;
+		goto err_put_cfg1;
 
 	usb_composite_overwrite_options(cdev, &coverwrite);
 	dev_info(&gadget->dev, "%s\n", NOKIA_LONG_NAME);
 
 	return 0;
 
+err_put_cfg1:
+	usb_put_function(f_acm_cfg1);
+err_acm_inst:
+	usb_put_function_instance(fi_acm);
 err_usb:
 	gether_cleanup();
 err_ether:
@@ -217,6 +245,9 @@ static int __exit nokia_unbind(struct usb_composite_dev *cdev)
 {
 	int i;
 
+	usb_put_function(f_acm_cfg1);
+	usb_put_function(f_acm_cfg2);
+	usb_put_function_instance(fi_acm);
 	gphonet_cleanup();
 
 	for (i = 0; i < TTY_PORTS_MAX; i++)
@@ -247,4 +278,3 @@ static void __exit nokia_cleanup(void)
 	usb_composite_unregister(&nokia_driver);
 }
 module_exit(nokia_cleanup);
-
diff --git a/drivers/usb/gadget/u_serial.h b/drivers/usb/gadget/u_serial.h
index 66ce73a00509..c20210c0babd 100644
--- a/drivers/usb/gadget/u_serial.h
+++ b/drivers/usb/gadget/u_serial.h
@@ -65,7 +65,6 @@ int gserial_connect(struct gserial *, u8 port_num);
 void gserial_disconnect(struct gserial *);
 
 /* functions are bound to configurations by a config or gadget driver */
-int acm_bind_config(struct usb_configuration *c, u8 port_num);
 int gser_bind_config(struct usb_configuration *c, u8 port_num);
 int obex_bind_config(struct usb_configuration *c, u8 port_num);