Commit Graph

8504 Commits

Author SHA1 Message Date
Takashi Iwai bf6f3d74c9 ALSA: riptide: More constifications
Apply const prefix to each lbus path table definition and its
callers.

Just for minor optimization and no functional changes.

Link: https://lore.kernel.org/r/20200105144823.29547-16-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-05 16:14:40 +01:00
Takashi Iwai 6fddce26f8 ALSA: emu10k1: More constifications
Apply const prefix to the remaining possible places: the static tables
for init verbs and registers, the string arrays, the conversion
tables, etc.

Just for minor optimization and no functional changes.

Link: https://lore.kernel.org/r/20200105144823.29547-15-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-05 16:14:39 +01:00
Takashi Iwai eafcdbdb4f ALSA: au88x0: More constifications
Apply const prefix to each possible place: the static register tables,
the coef tables, the string arrays, etc.

Just for minor optimization and no functional changes.

Link: https://lore.kernel.org/r/20200105144823.29547-14-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-05 16:14:38 +01:00
Takashi Iwai 1675bfc0fb ALSA: ac97: More constifications
Apply const prefix to each possible place: the static tables for
registers and bits, the quirk tables, etc.

Just for minor optimization and no functional changes.

Link: https://lore.kernel.org/r/20200105144823.29547-11-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-05 16:14:34 +01:00
Takashi Iwai bf82326fce ALSA: hda: More constifications
Apply const prefix to the remaining possible places: the string
tables, the rate tables, the verb tables, the index tables, etc.

Just for minor optimization and no functional changes.

Link: https://lore.kernel.org/r/20200105144823.29547-10-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-05 16:14:32 +01:00
Takashi Iwai f729f88a04 ALSA: intel8x0: More constifications
Apply const prefix to more places: the static tables for PCM
definitions, the register tables, etc.

Just for minor optimization and no functional changes.

Link: https://lore.kernel.org/r/20200105144823.29547-9-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-05 16:14:31 +01:00
Takashi Iwai c09482455c ALSA: vx: More constifications
Apply const prefix to every possible place: the static tables for DSP
commands, the string tables, and register/offset tables.

Just for minor optimization and no functional changes.

Link: https://lore.kernel.org/r/20200105144823.29547-8-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-05 16:14:30 +01:00
Takashi Iwai 6b0f95c49d ALSA: hda/realtek - More constifications
Apply const prefix to each coef table array.

Just for minor optimization and no functional changes.

Link: https://lore.kernel.org/r/20200105144823.29547-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-05 16:14:27 +01:00
Takashi Iwai 5d8398aa59 Merge branch 'for-linus' into for-next
Merge 5.5-rc devel branch back for applying the conflicting USB-audio
fix.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-05 09:19:34 +01:00
Takashi Iwai 5fab582967 ALSA: hda/realtek - Apply mic mute LED quirk for Dell E7xx laptops, too
Dell E7xx laptops have also mic mute LED that is driven by the
dell-laptop platform driver.  Bind it with the capture control as
already done for other models.

A caveat is that the fixup hook for the mic mute LED has to be applied
at last, otherwise it results in the invalid override of the callback.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=205529
Link: https://lore.kernel.org/r/20200105081119.21396-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-05 09:12:11 +01:00
Takashi Iwai fbd3eb7f66 ALSA: control: Add verification for kctl accesses
The current implementation of ALSA control API fully relies on the
callbacks of each driver, and there is no verification of the values
passed via API.  This patch is an attempt to improve the situation
slightly by adding the validation code for the values stored via info
and get callbacks.

The patch adds a new kconfig, CONFIG_SND_CTL_VALIDATION.  It depends
on CONFIG_SND_DEBUG and off as default since the validation would
require a slight overhead including the additional call of info
callback at each get callback invocation.

When this config is enabled, the values stored by each info callback
invocation are verified, namely:
- Whether the info type is valid
- Whether the number of enum items is non-zero
- Whether the given info count is within the allowed boundary

Similarly, the values stored at each get callback are verified as
well:
- Whether the values are within the given range
- Whether the values are aligned with the given step
- Whether any further changes are seen in the data array over the
  given info count

The last point helps identifying a possibly invalid data type access,
typically a case where the info callback declares the type being
SNDRV_CTL_ELEM_TYPE_ENUMERATED while the get/put callbacks store
the values in value.integer.value[] array.

When a validation fails, the ALSA core logs an error message including
the device and the control ID, and the API call also returns an
error.  So, with the new validation turned on, the driver behavior
difference may be visible on user-space, too -- it's intentional,
though, so that we can catch an error more clearly.

The patch also introduces a new ctl access type,
SNDRV_CTL_ELEM_ACCESS_SKIP_CHECK.  A driver may pass this flag with
other access bits to indicate that the ctl element won't be verified.
It's useful when a driver code is specially written to access the data
greater than info->count size by some reason.  For example, this flag
is actually set now in HD-audio HDMI codec driver which needs to clear
the data array in the case of the disconnected monitor.

Also, the PCM channel-map helper code is slightly modified to avoid
the false-positive hit by this validation code, too.

Link: https://lore.kernel.org/r/20200104083556.27789-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-04 09:37:59 +01:00
Kailang Yang 6d9ffcff64 ALSA: hda/realtek - Add new codec supported for ALCS1200A
Add ALCS1200A supported.
It was similar as ALC900.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/a9bd3cdaa02d4fa197623448d5c51e50@realtek.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-04 09:22:34 +01:00
Michał Mirosław caf3c0437a ALSA: hda - constify and cleanup static NodeID tables
Make hda_nid_t tables static const, as they are not intended to be
modified by callees.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Link: https://lore.kernel.org/r/5150c94101c9534f4c8e987324f6912c16d459f6.1578043216.git.mirq-linux@rere.qmqm.pl
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-03 10:38:38 +01:00
Takashi Iwai 88e540a876 ALSA: pci: Constify snd_pci_quirk tables
The snd_pci_quirk tables are referred as read-only, hence they can be
declared as const gracefully.

There should be no functional changes by this patch.

Link: https://lore.kernel.org/r/20200103081714.9560-59-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-03 09:24:45 +01:00
Takashi Iwai a5dc05e466 ALSA: hda: Constify snd_pci_quirk tables
The snd_pci_quirk tables are referred as read-only, hence they can be
declared as const gracefully.

There should be no functional changes by this patch.

Link: https://lore.kernel.org/r/20200103081714.9560-58-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-03 09:24:44 +01:00
Takashi Iwai fb537cd008 ALSA: fm801: Constify snd_fm801_tea575x_gpios
The snd_fm801_tea575x_gpios table is referred as read-only, hence it
can be declared as const gracefully.

There should be no functional changes by this patch.

Link: https://lore.kernel.org/r/20200103081714.9560-57-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-03 09:24:44 +01:00
Takashi Iwai cd6e03122b ALSA: es1968: Constify snd_es1968_tea575x_gpios
The snd_es1968_tea575x_gpios table is referred as read-only, hence it
can be declared as const gracefully.

There should be no functional changes by this patch.

Link: https://lore.kernel.org/r/20200103081714.9560-56-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-03 09:24:43 +01:00
Takashi Iwai c274d967ce ALSA: emu10k1: Constify snd_emu_chip_details
The snd_emu_chip_details definitions are referred as read-only, hence
they can be declared as const gracefully.

There should be no functional changes by this patch.

Link: https://lore.kernel.org/r/20200103081714.9560-55-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-03 09:24:43 +01:00
Takashi Iwai baa9df207a ALSA: bt87x: Constify snd_bt87x_boards
The snd_bt87x_boards array is referred as read-only, hence it can be
declared as const gracefully.

There should be no functional changes by this patch.

Link: https://lore.kernel.org/r/20200103081714.9560-54-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-03 09:24:42 +01:00
Takashi Iwai 4f8ce9821e ALSA: ice1712: Constify wm-specific tables
The tables defined in wm8766.c and wm8776.c are referred as read-only,
hence they can be declared as const gracefully.

There should be no functional changes by this patch.

Link: https://lore.kernel.org/r/20200103081714.9560-50-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-03 09:24:39 +01:00
Takashi Iwai aeb0215c76 ALSA: ice17xx: Constify snd_ice1712_card_info
The snd_ice1712_card_info objects are referred only as read-only.
Let's make them const for further optimization.

There should be no functional changes by this patch.

Link: https://lore.kernel.org/r/20200103081714.9560-49-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-03 09:24:39 +01:00
Takashi Iwai dc6ffaf828 ALSA: ca0106: Constify snd_ca0106_details
The snd_ca0106_details table entries are referred only as read-only.
Let's make them const.

There should be no functional changes by this patch.

Link: https://lore.kernel.org/r/20200103081714.9560-48-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-03 09:24:38 +01:00
Takashi Iwai 311840d96f ALSA: ca0106: Constify snd_ca0106_category_str items
snd_ca0106_con_category array is read-only and can be marked as const.

There should be no functional changes by this patch.

Link: https://lore.kernel.org/r/20200103081714.9560-47-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-03 09:24:37 +01:00
Takashi Iwai c0476b980d ALSA: ac97: Constify snd_ac97_res_table definition
One snd_ac97_res_table definition remains forgotten without const.
Let's add it for a bit of optimization.

There should be no functional changes by this patch.

Link: https://lore.kernel.org/r/20200103081714.9560-46-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-03 09:24:37 +01:00
Takashi Iwai b4e5e70775 ALSA: pci: Constify snd_kcontrol_new items
Most of snd_kcontrol_new definitions are read-only and passed as-is.
Let's declare them as const for further optimization.

There should be no functional changes by this patch.

Link: https://lore.kernel.org/r/20200103081714.9560-38-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-03 09:24:28 +01:00
Takashi Iwai 35ace5e841 ALSA: hda: Constify snd_kcontrol_new items
Most of snd_kcontrol_new definitions are read-only and passed as-is.
Let's declare them as const for further optimization.

There should be no functional changes by this patch.

Link: https://lore.kernel.org/r/20200103081714.9560-37-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-03 09:24:27 +01:00
Takashi Iwai f8ae2d2919 ALSA: vx: Constify snd_vx_hardware and snd_vx_ops definitions
Both snd_vx_hardware and snd_vx_ops are only referred without
modification, hence they can be constified gracefully for further
optimizations.

There should be no functional changes by this patch.

Link: https://lore.kernel.org/r/20200103081714.9560-31-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-03 09:24:20 +01:00
Takashi Iwai d25ff26840 ALSA: info: Make snd_info_entry_ops as const
The reference to snd_info_entry_ops is rather read-only, so declare it
as a const pointer.  This allows a bit more optimization.

There should be no functional changes by this patch.

Link: https://lore.kernel.org/r/20200103081714.9560-29-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-03 09:24:18 +01:00
Takashi Iwai 51055da51d ALSA: pci: Constify snd_ac97_bus_ops definitions
Now snd_ac97_bus() takes the const ops pointer, so we can define the
snd_ac97_bus_ops locally as const as well for further optimization.

There should be no functional changes by this patch.

Link: https://lore.kernel.org/r/20200103081714.9560-28-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-03 09:24:13 +01:00
Takashi Iwai 19260818a9 ALSA: ac97: Treat snd_ac97_bus_ops as const
This is a preliminary patch to allow const for snd_ac97_bus_ops
definitions in each driver's code.  The ops reference is read-only,
hence it can be declared as const for further optimization.

There should be no functional changes by this patch.

Link: https://lore.kernel.org/r/20200103081714.9560-23-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-03 09:24:08 +01:00
Takashi Iwai 5ff16a3d48 ALSA: Constify snd_timer_hardware definitions
Most of snd_timer_hardware definitions do simply copying to another
struct as-is.  Mark them as const for further optimization.

There should be no functional changes by this patch.

Link: https://lore.kernel.org/r/20200103081714.9560-22-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-03 09:24:07 +01:00
Takashi Iwai efb0ad25d3 ALSA: pci: Constify snd_device_ops definitions
Now we may declare const for snd_device_ops definitions, so let's do
it for optimization.

There should be no functional changes by this patch.

Link: https://lore.kernel.org/r/20200103081714.9560-10-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-03 09:23:56 +01:00
Takashi Iwai 41f394a8d8 ALSA: hda: Constify snd_device_ops definitions
Now we may declare const for snd_device_ops definitions, so let's do
it for optimization.

There should be no functional changes by this patch.

Link: https://lore.kernel.org/r/20200103081714.9560-9-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-03 09:23:55 +01:00
Takashi Iwai c1c3981fa1 ALSA: pci: Constify snd_pcm_hardware definitions
Most of snd_pcm_hardware definitions are just copied to another object
as-is, hence we can define them as const for further optimization.

There should be no functional changes by this patch.

Link: https://lore.kernel.org/r/20200103081714.9560-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-03 09:23:47 +01:00
Julia Lawall c56fc8c9ad ALSA: hda: constify copied structure
The azx_pcm_hw structure is only copied into another structure,
so make it const.

The opportunity for this change was found using Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Link: https://lore.kernel.org/r/1577864614-5543-3-git-send-email-Julia.Lawall@inria.fr
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-01 12:39:27 +01:00
Chris Chiu 48e01504cf ALSA: hda/realtek - Enable the bass speaker of ASUS UX431FLC
ASUS reported that there's an bass speaker in addition to internal
speaker and it uses DAC 0x02. It was not enabled in the commit
436e25505f ("ALSA: hda/realtek - Enable internal speaker of ASUS
UX431FLC") which only enables the amplifier and the front speaker.
This commit enables the bass speaker on top of the aforementioned
work to improve the acoustic experience.

Fixes: 436e25505f ("ALSA: hda/realtek - Enable internal speaker of ASUS UX431FLC")
Signed-off-by: Chris Chiu <chiu@endlessm.com>
Signed-off-by: Jian-Hong Pan <jian-hong@endlessm.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20191230031118.95076-1-chiu@endlessm.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-12-30 08:02:47 +01:00
Takashi Iwai 0aec96f589 ALSA: ice1724: Fix sleep-in-atomic in Infrasonic Quartet support code
Jia-Ju Bai reported a possible sleep-in-atomic scenario in the ice1724
driver with Infrasonic Quartet support code: namely, ice->set_rate
callback gets called inside ice->reg_lock spinlock, while the callback
in quartet.c holds ice->gpio_mutex.

This patch fixes the invalid call: it simply moves the calls of
ice->set_rate and ice->set_mclk callbacks outside the spinlock.

Reported-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/5d43135e-73b9-a46a-2155-9e91d0dcdf83@gmail.com
Link: https://lore.kernel.org/r/20191218192606.12866-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-12-29 09:18:19 +01:00
Kailang Yang e79c22695a ALSA: hda/realtek - Add Bass Speaker and fixed dac for bass speaker
Dell has new platform which has dual speaker connecting.
They want dual speaker which use same dac for output.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/229c7efa2b474a16b7d8a916cd096b68@realtek.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-12-27 09:15:44 +01:00
Takashi Iwai c366b3dbba ALSA: hda - Apply sync-write workaround to old Intel platforms, too
Klaus Ethgen reported occasional high CPU usages in his system that
seem caused by HD-audio driver.  The perf output revealed that it's
in the unsolicited event handling in the workqueue, and the problem
seems triggered by some communication stall between the controller and
the codec at the runtime or system resume.

Actually a similar phenomenon was seen in the past for other Intel
platforms, and we already applied the workaround to enforce sync-write
for CORB/RIRB verbs for Skylake and newer chipsets (commit
2756d9143a "ALSA: hda - Fix intermittent CORB/RIRB stall on Intel
chips").  Fortunately, the same workaround is applicable to the old
chipset, and the experiment showed the positive effect.

Based on the experiment result, this patch enables the sync-write
workaround for all Intel chipsets.  The only reason I hesitated to
apply this workaround was about the possibly slightly higher CPU usage.
But if the lack of sync causes a much severer problem even for quite
old chip, we should think this would be necessary for all Intel chips.

Reported-by: Klaus Ethgen <Klaus@ethgen.ch>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20191223171833.GA17053@chua
Link: https://lore.kernel.org/r/20191223221816.32572-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-12-23 23:19:03 +01:00
Takashi Sakamoto e67c3f0fd4 ALSA: pci: echoaudio: remove usage of dimen menber of elem_value structure
In a couple of years ago, 'echomixer' userspace application was revised
not to use 'dimen' member of 'struct snd_ctl_elem_info'.

This commit removes usage of 'dimen' member from echoaudio PCI driver so
that no implementation uses the member.

Reference: 275353bb68 ("ALSA: echoaudio: purge contradictions between dimension matrix members and total number of members")
Reference: 51db452df0 ("Revert "ALSA: echoaudio: purge contradictions between dimension matrix members and total number of members")
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20191223023921.8151-3-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-12-23 15:57:34 +01:00
Alex Deucher 8cc0991c09 ALSA: hda/hdmi - fix atpx_present when CLASS is not VGA
You can't use PCI_BASE_CLASS with pci_get_class().  This
happens to work by luck on devices with PCI_CLASS_DISPLAY_VGA, but
misses PCI_CLASS_DISPLAY_OTHER.  Add a check for those as well.

Fixes: 586bc4aab8 ("ALSA: hda/hdmi - fix vgaswitcheroo detection for AMD")
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://lore.kernel.org/r/20191221001702.1338587-1-alexander.deucher@amd.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-12-21 09:28:19 +01:00
Takashi Iwai d63e63d421 ALSA: hdsp: Make uapi/hdsp.h compilable again
Recently alsa-lib updated its content of sound/hdsp.h just by copying
the latest Linus kernel uapi/*.h, and this broke the build of
alsa-tools programs.  We used to modify the headers so that they can
be built without asoundlib.h and linux kernel headers, and the
verbatim copy doesn't work as is.

This patch removes again the linux/types.h inclusion and drop __user
prefix that broke the build and adjusts the corresponding code.

Link: https://lore.kernel.org/r/20191220153415.2740-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-12-20 16:45:10 +01:00
Takashi Iwai 2e46886763 ALSA: emu10k1: Make uapi/emu10k1.h compilable again
Recently we updated the content in alsa-lib uapi header files by just
copying from the latest Linus kernel uapi/*.h, and noticed that it
broke the build of some alsa-tools programs.  The reason is that we
used to have a modified version in the past, so that the program can
be built without referring to the unexported stuff like
snd_ctl_elem_id or __user prefix.

This patch attempts to restore that, i.e. dropping the stuff that
can't be referred in the user-space.  For adapting the changes in
uapi/emu10k1.h, the emu10k1 driver code is also slightly modified.
Most of changes are pointer cast.

Link: https://lore.kernel.org/r/20191220153415.2740-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-12-20 16:45:10 +01:00
Kailang Yang 66c5d718e5 ALSA: hda/realtek - Add headset Mic no shutup for ALC283
Chrome machine had humming noise from external speaker plugin at
codec D3 state.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/2692449396954c6c968f5b75e2660358@realtek.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-12-19 09:44:13 +01:00
Takashi Iwai a032ff0e80 Merge branch 'for-linus' into for-next
Taking the 5.5 devel branch back into the main devel branch.
A USB-audio fix needs to be adjusted to adapt the changes that have
been formerly applied for stop_sync.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-12-18 20:07:43 +01:00
Takashi Iwai df1d6ea05a ALSA: Fix year 2038 issue for sound subsystem
This is a series I worked on with Baolin in 2017 and 2018, but we
 never quite managed to finish up the last pieces. During the
 ALSA developer meetup at ELC-E 2018 in Edinburgh, a decision was
 made to go with this approach for keeping best compatibility
 with existing source code, and then I failed to follow up by
 resending the patches.
 
 Now I have patches for all remaining time_t uses in the kernel,
 so it's absolutely time to revisit them. I have done more
 review of the patches myself and found a couple of minor issues
 that I have fixed up, otherwise the series is still the same as
 before.
 
 Conceptually, the idea of these patches is:
 
 - 64-bit applications should see no changes at all, neither
   compile-time nor run-time.
 
 - 32-bit code compiled with a 64-bit time_t currently
   does not work with ALSA, and requires kernel changes and/or
   sound/asound.h changes
 
 - Most 32-bit code using these interfaces will work correctly
   on a modified kernel, with or without the uapi header changes.
 
 - 32-bit code using SNDRV_TIMER_IOCTL_TREAD requires the
   updated header file for 64-bit time_t support
 
 - 32-bit i386 user space with 64-bit time_t is broken for
   SNDRV_PCM_IOCTL_STATUS, SNDRV_RAWMIDI_IOCTL_STATUS and
   SNDRV_PCM_IOCTL_SYNC_PTR because of i386 alignment. This is also
   addressed by the updated uapi header.
 
 - PCM mmap is currently supported on native x86 kernels
   (both 32-bit and 64-bit) but not for compat mode. This series breaks
   the 32-bit native mmap support for 32-bit time_t, but instead allows
   it for 64-bit time_t on both native and compat kernels. This seems to
   be the best trade-off, as mmap support is optional already, and most
   32-bit code runs in compat mode anyway.
 
 - I've tried to avoid breaking compilation of 32-bit code
   as much as possible. Anything that does break however is likely code
   that is already broken on 64-bit time_t and needs source changes to
   fix them.
 
 [1] https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git y2038-alsa-v8
 [2] https://lore.kernel.org/lkml/CAK8P3a2Os66+iwQYf97qh05W2JP8rmWao8zmKoHiXqVHvyYAJA@mail.gmail.com/T/#m6519cb07cfda08adf1dedea6596bb98892b4d5dc
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 
 Changes since v7: (Arnd):
  - Fix a typo found by Ben Hutchings
 
 Changes since v6: (Arnd):
  - Add a patch to update the API versions
  - Hide a timespec reference in #ifndef __KERNEL__ to remove the
    last reference to time_t
  - Use a more readable way to do padding and describe it in the
    changelog
  - Rebase to linux-5.5-rc1, changing include/sound/soc-component.h
    and sound/drivers/aloop.c as needed.
 
 Changes since v5 (Arnd):
  - Rebased to linux-5.4-rc4
  - Updated to completely remove timespec and time_t references from alsa
  - found and fixed a few bugs
 
 Changes since v4 (Baolin):
  - Add patch 5 to change trigger_tstamp member of struct snd_pcm_runtime.
  - Add patch 8 to change internal timespec.
  - Add more explanation in commit message.
  - Use ktime_get_real_ts64() in patch 6.
  - Split common code out into a separate function in patch 6.
  - Fix tu->tread bug in patch 6 and remove #if __BITS_PER_LONG == 64 macro.
 
 Changes since v3:
  - Move struct snd_pcm_status32 to pcm.h file.
  - Modify comments and commit message.
  - Add new patch2 ~ patch6.
 
 Changes since v2:
  - Renamed all structures to make clear.
  - Remove CONFIG_X86_X32 macro and introduced new compat_snd_pcm_status64_x86_32.
 
 Changes since v1:
  - Add one macro for struct snd_pcm_status_32 which only active in 32bits kernel.
  - Convert pcm_compat.c to use struct snd_pcm_status_64.
  - Convert pcm_native.c to use struct snd_pcm_status_64.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJd+URTAAoJEGCrR//JCVIn4FwQAJlo8vLvc/bZc58cw5KBdsal
 /lgYiCoT2Q7IMC3FHr28jVd+R3vAzfSMJFmwawCtV0iNXOsAHv2yyE9+whqH0ljg
 oz1o7X+oDBBa9Fed1WIxrAjFWzI7u+4lz29qvkenP6x2h9tvvMq0cdxRMz4qSVPk
 u7c7Yui/yEtBHmcWoQFNhIpeTFg8QCPZnR9SkyZ4O/q1GS9n+Ep5kLioFl3PQGGi
 KndZ+gMBgIj4l7sRV0l2KFzP/N2dXowUlP+AW9V80LgSI4VyQ7jgMG+QalgzAXwH
 ey1apJ38m51EglAi4TTglcTpe/TyTKLHs9JBAI+7QNa90EwJTrmjmXwXtfnBVlAS
 d0uK7ISFNyK/PujYsUD7FQrDeubgSeAYHyKtAh3YGVKFUEOBsGywSVyuCIoRJsmR
 2mJFHrsZnvKyooGJY9gwMmttoanwcXnGXloTjFQF7qEzFoi2BdoBsjWrDiN+3olc
 WVbW3rWSjVeKzD9cEylchTxkxFP1j2NDQEPD4epq+ncm0feq9mC7rrt5G9gXKMmu
 qf2pMEUKFE7Tn3LllT4iUY7z4FybgEuKADH5/5zQjsVvBZ5BCvi1BDUJaYRQozxh
 hC6ovFG7uTRL6wOw/7GGx9/lgX2GQ91z6IJeuqZSLj+tdlzVKoScfRgnrbZS8ZOy
 W4RfCyuo5PedyqfTeTEX
 =58V0
 -----END PGP SIGNATURE-----

Merge tag 'y2038-alsa-v8-signed' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground into for-next

ALSA: Fix year 2038 issue for sound subsystem

This is a series I worked on with Baolin in 2017 and 2018, but we
never quite managed to finish up the last pieces. During the
ALSA developer meetup at ELC-E 2018 in Edinburgh, a decision was
made to go with this approach for keeping best compatibility
with existing source code, and then I failed to follow up by
resending the patches.

Now I have patches for all remaining time_t uses in the kernel,
so it's absolutely time to revisit them. I have done more
review of the patches myself and found a couple of minor issues
that I have fixed up, otherwise the series is still the same as
before.

Conceptually, the idea of these patches is:

- 64-bit applications should see no changes at all, neither
  compile-time nor run-time.

- 32-bit code compiled with a 64-bit time_t currently
  does not work with ALSA, and requires kernel changes and/or
  sound/asound.h changes

- Most 32-bit code using these interfaces will work correctly
  on a modified kernel, with or without the uapi header changes.

- 32-bit code using SNDRV_TIMER_IOCTL_TREAD requires the
  updated header file for 64-bit time_t support

- 32-bit i386 user space with 64-bit time_t is broken for
  SNDRV_PCM_IOCTL_STATUS, SNDRV_RAWMIDI_IOCTL_STATUS and
  SNDRV_PCM_IOCTL_SYNC_PTR because of i386 alignment. This is also
  addressed by the updated uapi header.

- PCM mmap is currently supported on native x86 kernels
  (both 32-bit and 64-bit) but not for compat mode. This series breaks
  the 32-bit native mmap support for 32-bit time_t, but instead allows
  it for 64-bit time_t on both native and compat kernels. This seems to
  be the best trade-off, as mmap support is optional already, and most
  32-bit code runs in compat mode anyway.

- I've tried to avoid breaking compilation of 32-bit code
  as much as possible. Anything that does break however is likely code
  that is already broken on 64-bit time_t and needs source changes to
  fix them.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git y2038-alsa-v8
[2] https://lore.kernel.org/lkml/CAK8P3a2Os66+iwQYf97qh05W2JP8rmWao8zmKoHiXqVHvyYAJA@mail.gmail.com/T/#m6519cb07cfda08adf1dedea6596bb98892b4d5dc

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Changes since v7: (Arnd):
 - Fix a typo found by Ben Hutchings

Changes since v6: (Arnd):
 - Add a patch to update the API versions
 - Hide a timespec reference in #ifndef __KERNEL__ to remove the
   last reference to time_t
 - Use a more readable way to do padding and describe it in the
   changelog
 - Rebase to linux-5.5-rc1, changing include/sound/soc-component.h
   and sound/drivers/aloop.c as needed.

Changes since v5 (Arnd):
 - Rebased to linux-5.4-rc4
 - Updated to completely remove timespec and time_t references from alsa
 - found and fixed a few bugs

Changes since v4 (Baolin):
 - Add patch 5 to change trigger_tstamp member of struct snd_pcm_runtime.
 - Add patch 8 to change internal timespec.
 - Add more explanation in commit message.
 - Use ktime_get_real_ts64() in patch 6.
 - Split common code out into a separate function in patch 6.
 - Fix tu->tread bug in patch 6 and remove #if __BITS_PER_LONG == 64 macro.

Changes since v3:
 - Move struct snd_pcm_status32 to pcm.h file.
 - Modify comments and commit message.
 - Add new patch2 ~ patch6.

Changes since v2:
 - Renamed all structures to make clear.
 - Remove CONFIG_X86_X32 macro and introduced new compat_snd_pcm_status64_x86_32.

Changes since v1:
 - Add one macro for struct snd_pcm_status_32 which only active in 32bits kernel.
 - Convert pcm_compat.c to use struct snd_pcm_status_64.
 - Convert pcm_native.c to use struct snd_pcm_status_64.
2019-12-17 23:12:39 +01:00
Takashi Iwai d8cac6207e ALSA: cmipci: Allow disabling MPU port via module option
Patrick May reported that his sound card with CMI8378 chip causes a
crash / reboot when accessing the MIDI port that isn't actually
present on the board.  Moreover, despite of the documentation,
passing mpu_port=0 doesn't disable the MIDI port on this board.

It implies that the chip is a newer revision and the MPU401 port is
integrated and mapped on the PCI register.  For this chip model, the
driver enables the MPU port unconditionally, so far.

Although fixing the unexpected reboot would be the best solution, it's
not so trivial to identify the cause.  So, as a plan B, this patch
extends the existing mpu_port option usage to allow disabling the port
by specifying the value 0, just like we applied for fm_port option in
commit 2f24d159d5 ("[ALSA] cmipci - Allow to disable integrated FM
port").  As default, the MPU port is still enabled, but user can pass
mpu_port=0 to disable it.

Reported-and-tested-by: Patrick May <dusthillresident@gmail.com>
Link: https://lore.kernel.org/r/20191217081448.1144-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-12-17 09:16:15 +01:00
Takashi Iwai 475feec0c4 ALSA: hda - Downgrade error message for single-cmd fallback
We made the error message for the CORB/RIRB communication clearer by
upgrading to dev_WARN() so that user can notice better.  But this
struck us like a boomerang: now it caught syzbot and reported back as
a fatal issue although it's not really any too serious bug that worth
for stopping the whole system.

OK, OK, let's be softy, downgrade it to the standard dev_err() again.

Fixes: dd65f7e19c ("ALSA: hda - Show the fatal CORB/RIRB error more clearly")
Reported-by: syzbot+b3028ac3933f5c466389@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/20191216151224.30013-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-12-16 16:36:04 +01:00
Takashi Iwai 6fd739c04f ALSA: hda: Fix regression by strip mask fix
The commit e38e486d66 ("ALSA: hda: Modify stream stripe mask only
when needed") tried to address the regression by the unconditional
application of the stripe mask, but this caused yet another
regression for the previously working devices.  Namely, the patch
clears the azx_dev->stripe flag at snd_hdac_stream_clear(), but this
may be called multiple times before restarting the stream, so this
ended up with clearance of the flag for the whole time.

This patch fixes the regression by moving the azx_dev->stripe flag
clearance at the counter-part, the close callback of HDMI codec
driver instead.

Fixes: e38e486d66 ("ALSA: hda: Modify stream stripe mask only when needed")
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=205855
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=204477
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20191214175217.31852-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-12-14 18:54:47 +01:00
Takashi Iwai 42fb6b1d41 ALSA: hda/ca0132 - Fix work handling in delayed HP detection
CA0132 has the delayed HP jack detection code that is invoked from the
unsol handler, but it does a few weird things: it contains the cancel
of a work inside the work handler, and yet it misses the cancel-sync
call at (runtime-)suspend.  This patch addresses those issues.

Fixes: 15c2b3cc09 ("ALSA: hda/ca0132 - Fix possible workqueue stall")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20191213085111.22855-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-12-14 18:54:18 +01:00