linux/sound/pci
Takashi Iwai 4926c80465 ALSA: intel8x0: Drop superfluous VM checks
intel8x0 driver has the inside_vm check for skipping a buggy hardware
workaround in the PCM pointer callback in the commit [228cf79376:
ALSA: intel8x0: Improve performance in virtual environment].  This was
originally applied to all devices on known VMs, but the code was
switched to use the PCI  ID matching for applying to only known
devices (KVM and Parallels), in order to avoid applying wrongly to
VT-d and other such cases, in the commit [7fb4f392bd: ALSA:
intel8x0: improve virtual environment detection].

Meanwhile, the original VM check was kept even after switching to the
PCI ID matching.  It was partly because we weren't 100% sure whether
we had covered all well, and partly because this would help
identifying the issue once when a user of another VM hit the same
problem or a regression.  Currently the VM check is used only for
showing the kernel message that the VM-optimization isn't applied, and
the VM check itself doesn't change the actual driver behavior at all.

Despite the relatively safe driver behavior, the code caught attention
of developers badly and brought many confusion / misunderstanding.
Since we've got neither regression nor enhancement report for other
VMs for five years long, it's likely safe to drop this superfluous VM
check now.

The module option is still kept, so if a user still needs to adjust,
it can be applied as was.

Acked-by: Konstantin Ozerkov <kozerkov@parallels.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-04-06 07:46:28 +02:00
..
ac97 ALSA: ac97: Fix ifdef CONFIG_PROC_FS 2015-05-29 07:52:43 +02:00
ali5451 ALSA: remove deprecated use of pci api 2015-04-16 12:19:52 +02:00
asihpi x86/mm: Decouple <linux/vmalloc.h> from <asm/io.h> 2015-06-03 12:02:00 +02:00
au88x0 ALSA: remove deprecated use of pci api 2015-04-16 12:19:52 +02:00
aw2 ALSA: remove deprecated use of pci api 2015-04-16 12:19:52 +02:00
ca0106 ALSA: ca0106: Fix/cleanup ifdef CONFIG_PROC_FS 2015-05-29 07:54:45 +02:00
cs46xx ALSA: cs46xx: Fix suspend for all channels 2015-10-30 12:33:21 +01:00
cs5535audio ALSA: cs5535audio: constify cs5535audio_dma_ops structures 2015-12-30 22:49:40 +01:00
ctxfi ALSA: ctxfi: constify rsc ops structures 2015-11-11 08:40:56 +01:00
echoaudio ALSA: echoaudio: Use standard C definitions of true and false 2015-08-10 14:27:16 +02:00
emu10k1 ALSA: emu10k1: correctly handling failed thread creation 2016-01-29 17:30:25 +01:00
hda ALSA: hda - Update chmap tlv to report sink's capability 2016-04-04 16:04:24 +02:00
ice1712 ALSA: i2c: constify snd_i2c_ops structures 2015-11-30 11:40:08 +01:00
korg1212 ALSA: korg1212: Use snd_pcm_hw_constraint_single() 2015-10-21 14:24:27 +02:00
lola ALSA: Deletion of checks before the function call "iounmap" 2015-01-04 15:13:45 +01:00
lx6464es ALSA: lx6464es: Use snd_pcm_hw_constraint_single() 2015-10-21 14:24:28 +02:00
mixart ALSA: mixart: silence an uninitialized variable warning 2016-03-16 16:35:16 +01:00
nm256 ALSA: Include linux/io.h instead of asm/io.h 2015-01-28 16:49:33 +01:00
oxygen ALSA: oxygen: Fix logical-not-parentheses warning 2015-08-03 10:15:09 +02:00
pcxhr ALSA: remove deprecated use of pci api 2015-04-16 12:19:52 +02:00
riptide ALSA: off by one bug in snd_riptide_joystick_probe() 2015-02-09 14:57:15 +01:00
rme9652 ALSA: hdsp: Fix wrong boolean ctl value accesses 2016-02-29 18:13:34 +01:00
trident ALSA: remove deprecated use of pci api 2015-04-16 12:19:52 +02:00
vx222 ALSA: Include linux/io.h instead of asm/io.h 2015-01-28 16:49:33 +01:00
ymfpci ALSA: Include linux/io.h instead of asm/io.h 2015-01-28 16:49:33 +01:00
ad1889.c ALSA: remove deprecated use of pci api 2015-04-16 12:19:52 +02:00
ad1889.h
ak4531_codec.c ALSA: pci: Drop superfluous ifdef CONFIG_PROC_FS 2015-05-29 08:00:06 +02:00
als300.c ALSA: remove deprecated use of pci api 2015-04-16 12:19:52 +02:00
als4000.c ALSA: remove deprecated use of pci api 2015-04-16 12:19:52 +02:00
atiixp_modem.c ALSA: atiixp: constify atiixp_dma_ops structures 2015-12-30 22:49:37 +01:00
atiixp.c ALSA: atiixp: constify atiixp_dma_ops structures 2015-12-30 22:49:37 +01:00
azt3328.c ALSA: azt3328: Remove unnecessary synchronize_irq() before free_irq() 2015-11-21 17:40:07 +01:00
azt3328.h
bt87x.c ALSA: Include linux/io.h instead of asm/io.h 2015-01-28 16:49:33 +01:00
cmipci.c ALSA: pci: Drop superfluous ifdef CONFIG_PROC_FS 2015-05-29 08:00:06 +02:00
cs4281.c ALSA: Include linux/io.h instead of asm/io.h 2015-01-28 16:49:33 +01:00
cs5530.c ASoC: sb16: Simplify snd_sb16dsp_pcm() 2015-01-02 16:28:35 +01:00
ens1370.c ALSA: Include linux/io.h instead of asm/io.h 2015-01-28 16:49:33 +01:00
ens1371.c
es1938.c ALSA: remove deprecated use of pci api 2015-04-16 12:19:52 +02:00
es1968.c [media] media, sound: tea575x: constify snd_tea575x_ops structures 2015-12-03 11:26:45 -02:00
fm801.c sound updates for 4.5-rc1 2016-01-17 12:05:31 -08:00
intel8x0.c ALSA: intel8x0: Drop superfluous VM checks 2016-04-06 07:46:28 +02:00
intel8x0m.c ALSA: pci: Drop superfluous ifdef CONFIG_PROC_FS 2015-05-29 08:00:06 +02:00
Kconfig ALSA: jack: Allow building the jack layer without input device 2016-02-23 09:03:07 +01:00
maestro3.c ALSA: maestro3: Fix Allegro mute until master volume/mute is touched 2015-11-02 08:46:30 +01:00
Makefile ALSA: Add the driver for Digigram Lola PCI-e boards 2011-05-03 16:31:05 +02:00
rme32.c ALSA: rme32: Use snd_pcm_hw_constraint_single() 2015-10-21 14:24:28 +02:00
rme96.c ALSA: rme96: Fix unexpected volume reset after rate changes 2015-12-04 20:39:49 +01:00
sis7019.c ALSA: remove deprecated use of pci api 2015-04-16 12:19:52 +02:00
sis7019.h
sonicvibes.c ALSA: remove deprecated use of pci api 2015-04-16 12:19:52 +02:00
via82xx_modem.c ALSA: Include linux/io.h instead of asm/io.h 2015-01-28 16:49:33 +01:00
via82xx.c ALSA: Use const struct ac97_quirk 2015-04-05 08:41:05 +02:00