Takashi Sakamoto [Sun, 20 Aug 2017 04:49:07 +0000 (13:49 +0900)]
ALSA: control: code refactoring for ELEM_READ/ELEM_WRITE operations
ALSA control core handles ELEM_READ/ELEM_WRITE requests within lock
acquisition of a counting semaphore. The lock is acquired in helper
functions in the end of call path before calling implementations of each
driver.
Takashi Sakamoto [Sun, 20 Aug 2017 04:49:06 +0000 (13:49 +0900)]
ALSA: control: queue events within locking of controls_rwsem for ELEM_WRITE operation
Any control event is queued by a call of snd_ctl_notify(). This function
adds the event to each queue of opened file data corresponding to ALSA
control character devices. This function acquired two types of lock; a
counting semaphore for a list of the opened file data and a spinlock for
card data opened by the file. Typically, this function is called after
acquiring a counting semaphore for a list of elements in the card data.
In current implementation of a handler for ELEM_WRITE request, the
function is called after releasing the semaphore for a list of elements
in the card data. This release is not necessarily needed.
This commit removes the release to call the function within the critical
section so that later commits are simple.
Arvind Yadav [Fri, 18 Aug 2017 07:45:21 +0000 (13:15 +0530)]
ALSA: usb: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Arvind Yadav [Fri, 18 Aug 2017 07:45:20 +0000 (13:15 +0530)]
ALSA: spi: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Arvind Yadav [Fri, 18 Aug 2017 07:45:19 +0000 (13:15 +0530)]
ALSA: sparc: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Arvind Yadav [Fri, 18 Aug 2017 07:45:18 +0000 (13:15 +0530)]
ALSA: sh: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Arvind Yadav [Fri, 18 Aug 2017 07:45:17 +0000 (13:15 +0530)]
ALSA: ppc: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Arvind Yadav [Fri, 18 Aug 2017 07:45:16 +0000 (13:15 +0530)]
ALSA: pcmcia: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Arvind Yadav [Fri, 18 Aug 2017 07:45:15 +0000 (13:15 +0530)]
ALSA: parisc: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Arvind Yadav [Fri, 18 Aug 2017 07:45:14 +0000 (13:15 +0530)]
ALSA: mips: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Arvind Yadav [Fri, 18 Aug 2017 07:45:13 +0000 (13:15 +0530)]
ALSA: firewire: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Arvind Yadav [Fri, 18 Aug 2017 07:45:12 +0000 (13:15 +0530)]
ALSA: drivers: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Arvind Yadav [Fri, 18 Aug 2017 07:45:11 +0000 (13:15 +0530)]
ALSA: atmel: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Arvind Yadav [Fri, 18 Aug 2017 07:45:10 +0000 (13:15 +0530)]
ALSA: arm: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Arvind Yadav [Fri, 18 Aug 2017 07:45:09 +0000 (13:15 +0530)]
ALSA: aoa: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Stephen Barber [Thu, 17 Aug 2017 22:17:46 +0000 (15:17 -0700)]
ALSA: usb-audio: don't retry snd_usb_ctl_msg after timeout
A few calls to snd_usb_ctl_msg wrap the function in a retry loop. In
the worst case, the timeout for snd_usb_ctl_msg is 5 seconds, which when
retried 10 times (for example, if a device is removed) could cause a
probe to hang for ~50 seconds.
Arvind Yadav [Thu, 17 Aug 2017 10:06:30 +0000 (15:36 +0530)]
ALSA: wavefront: constify pnp_card_device_id
pnp_card_device_id are not supposed to change at runtime. All functions
working with pnp_card_device_id provided by <linux/pnp.h> work with
const pnp_card_device_id. So mark the non-const structs as const.
Arvind Yadav [Thu, 17 Aug 2017 10:06:29 +0000 (15:36 +0530)]
ALSA: sscape: constify pnp_card_device_id
pnp_card_device_id are not supposed to change at runtime. All functions
working with pnp_card_device_id provided by <linux/pnp.h> work with
const pnp_card_device_id. So mark the non-const structs as const.
Arvind Yadav [Thu, 17 Aug 2017 10:06:28 +0000 (15:36 +0530)]
ALSA: sb16: constify pnp_card_device_id
pnp_card_device_id are not supposed to change at runtime. All functions
working with pnp_card_device_id provided by <linux/pnp.h> work with
const pnp_card_device_id. So mark the non-const structs as const.
Arvind Yadav [Thu, 17 Aug 2017 10:06:27 +0000 (15:36 +0530)]
ALSA: opti9xx: constify pnp_card_device_id
pnp_card_device_id are not supposed to change at runtime. All functions
working with pnp_card_device_id provided by <linux/pnp.h> work with
const pnp_card_device_id. So mark the non-const structs as const.
Arvind Yadav [Thu, 17 Aug 2017 10:06:26 +0000 (15:36 +0530)]
ALSA: msnd: constify pnp_card_device_id
pnp_card_device_id are not supposed to change at runtime. All functions
working with pnp_card_device_id provided by <linux/pnp.h> work with
const pnp_card_device_id. So mark the non-const structs as const.
Arvind Yadav [Thu, 17 Aug 2017 10:06:25 +0000 (15:36 +0530)]
ALSA: gus: constify pnp_card_device_id
pnp_card_device_id are not supposed to change at runtime. All functions
working with pnp_card_device_id provided by <linux/pnp.h> work with
const pnp_card_device_id. So mark the non-const structs as const.
Arvind Yadav [Thu, 17 Aug 2017 10:06:24 +0000 (15:36 +0530)]
ALSA: es1688: constify pnp_card_device_id
pnp_card_device_id are not supposed to change at runtime. All functions
working with pnp_card_device_id provided by <linux/pnp.h> work with
const pnp_card_device_id. So mark the non-const structs as const.
Arvind Yadav [Thu, 17 Aug 2017 10:06:23 +0000 (15:36 +0530)]
ALSA: cs4236: constify pnp_card_device_id
pnp_card_device_id are not supposed to change at runtime. All functions
working with pnp_card_device_id provided by <linux/pnp.h> work with
const pnp_card_device_id. So mark the non-const structs as const.
Arvind Yadav [Thu, 17 Aug 2017 10:06:22 +0000 (15:36 +0530)]
ALSA: cmi8330: constify pnp_card_device_id
pnp_card_device_id are not supposed to change at runtime. All functions
working with pnp_card_device_id provided by <linux/pnp.h> work with
const pnp_card_device_id. So mark the non-const structs as const.
Arvind Yadav [Thu, 17 Aug 2017 10:06:21 +0000 (15:36 +0530)]
ALSA: azt2320: constify pnp_card_device_id
pnp_card_device_id are not supposed to change at runtime. All functions
working with pnp_card_device_id provided by <linux/pnp.h> work with
const pnp_card_device_id. So mark the non-const structs as const.
Arvind Yadav [Thu, 17 Aug 2017 10:06:20 +0000 (15:36 +0530)]
ALSA: als100: constify pnp_card_device_id
pnp_card_device_id are not supposed to change at runtime. All functions
working with pnp_card_device_id provided by <linux/pnp.h> work with
const pnp_card_device_id. So mark the non-const structs as const.
pnp_card_device_id are not supposed to change at runtime. All functions
working with pnp_card_device_id provided by <linux/pnp.h> work with
const pnp_card_device_id. So mark the non-const structs as const.
Arvind Yadav [Thu, 17 Aug 2017 10:06:18 +0000 (15:36 +0530)]
ALSA: opl3sa2: constify pnp_device_id and pnp_card_device_id
*_device_id are not supposed to change at runtime. All functions
working with *_device_id provided by <linux/pnp.h> work with
const *_device_id. So mark the non-const structs as const.
Arvind Yadav [Thu, 17 Aug 2017 10:06:17 +0000 (15:36 +0530)]
ALSA: es18xx: constify pnp_device_id and pnp_card_device_id
*_device_id are not supposed to change at runtime. All functions
working with *_device_id provided by <linux/pnp.h> work with
const *_device_id. So mark the non-const structs as const.
Arvind Yadav [Thu, 17 Aug 2017 10:06:16 +0000 (15:36 +0530)]
ALSA: drivers: mpu401: constify pnp_device_id
pnp_device_id are not supposed to change at runtime. All functions
working with pnp_device_id provided by <linux/pnp.h> work with
const pnp_device_id. So mark the non-const structs as const.
These snd_rawmidi_ops structures are only passed as the third
argument of snd_rawmidi_set_ops. This argument is const, so the
snd_rawmidi_ops structures can be const too.
Arvind Yadav [Fri, 11 Aug 2017 11:58:07 +0000 (17:28 +0530)]
ALSA: wss: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Arvind Yadav [Fri, 11 Aug 2017 11:58:06 +0000 (17:28 +0530)]
ALSA: sb8: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Arvind Yadav [Fri, 11 Aug 2017 11:58:05 +0000 (17:28 +0530)]
ALSA: sb16: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Arvind Yadav [Fri, 11 Aug 2017 11:58:04 +0000 (17:28 +0530)]
ALSA: emu8000: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Arvind Yadav [Fri, 11 Aug 2017 11:58:03 +0000 (17:28 +0530)]
ALSA: msnd: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Arvind Yadav [Fri, 11 Aug 2017 11:58:02 +0000 (17:28 +0530)]
ALSA: gus: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Arvind Yadav [Fri, 11 Aug 2017 11:58:01 +0000 (17:28 +0530)]
ALSA: es18xx: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Arvind Yadav [Fri, 11 Aug 2017 11:58:00 +0000 (17:28 +0530)]
ALSA: es1688: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Markus Elfring [Sat, 12 Aug 2017 14:50:06 +0000 (16:50 +0200)]
ALSA: rme9652: Improve eight size determinations
Replace the specification of data structures by variable references
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Arvind Yadav [Thu, 10 Aug 2017 11:47:38 +0000 (17:17 +0530)]
ALSA: trident: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Arvind Yadav [Thu, 10 Aug 2017 11:47:37 +0000 (17:17 +0530)]
ALSA: sis7019: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Arvind Yadav [Thu, 10 Aug 2017 11:47:36 +0000 (17:17 +0530)]
ALSA: intel8x0m: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Arvind Yadav [Thu, 10 Aug 2017 11:47:35 +0000 (17:17 +0530)]
ALSA: intel8x0: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Arvind Yadav [Thu, 10 Aug 2017 11:47:34 +0000 (17:17 +0530)]
ALSA: echoaudio: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Arvind Yadav [Thu, 10 Aug 2017 11:47:33 +0000 (17:17 +0530)]
ALSA: au88x0: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Arvind Yadav [Thu, 10 Aug 2017 11:47:32 +0000 (17:17 +0530)]
ALSA: ali5451: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
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