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This converts some of the visually simpler cases that have been split
over multiple lines. I only did the ones that are easy to verify the
resulting diff by having just that final GFP_KERNEL argument on the next
line.
Somebody should probably do a proper coccinelle script for this, but for
me the trivial script actually resulted in an assertion failure in the
middle of the script. I probably had made it a bit _too_ trivial.
So after fighting that far a while I decided to just do some of the
syntactically simpler cases with variations of the previous 'sed'
scripts.
The more syntactically complex multi-line cases would mostly really want
whitespace cleanup anyway.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This is the exact same thing as the 'alloc_obj()' version, only much
smaller because there are a lot fewer users of the *alloc_flex()
interface.
As with alloc_obj() version, this was done entirely with mindless brute
force, using the same script, except using 'flex' in the pattern rather
than 'objs*'.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This is the result of running the Coccinelle script from
scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to
avoid scalar types (which need careful case-by-case checking), and
instead replace kmalloc-family calls that allocate struct or union
object instances:
Single allocations: kmalloc(sizeof(TYPE), ...)
are replaced with: kmalloc_obj(TYPE, ...)
Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...)
are replaced with: kmalloc_objs(TYPE, COUNT, ...)
Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...)
are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...)
(where TYPE may also be *VAR)
The resulting allocations no longer return "void *", instead returning
"TYPE *".
Signed-off-by: Kees Cook <kees@kernel.org>
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Use the correct function names and add a function parameter description
to avoid kernel-doc warnings:
hda_jack.h:97: warning: Function parameter or struct member 'cb' not
described in 'snd_hda_jack_detect_enable_callback'
hda_jack.h:97: warning: expecting prototype for snd_hda_jack_detect_enable().
Prototype was for snd_hda_jack_detect_enable_callback() instead
hda_local.h:441: warning: expecting prototype for _snd_hda_set_pin_ctl().
Prototype was for snd_hda_set_pin_ctl() instead
Fixes: cdd03cedc5b5 ("ALSA: hda - Introduce snd_hda_set_pin_ctl*() helper functions")
Fixes: 5204a05d70d9 ("ALSA: hda - Add DP-MST jack support")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://patch.msgid.link/20260106185951.2179242-1-rdunlap@infradead.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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We used to have a variable declaration with __free() initialized with
NULL. This was to keep the old coding style rule, but recently it's
relaxed and rather recommends to follow the new rule to declare in
place of use for __free() -- which avoids potential deadlocks or UAFs
with nested cleanups.
Although the current code has no bug, per se, let's follow the new
standard and move the declaration to the place of assignment (or
directly assign the allocated result) instead of NULL initializations.
Fixes: ee0b0f5d32fe ("ALSA: hda/generic: Use auto cleanup for temporary buffers")
Fixes: 03c5c350e38d ("ALSA: hda/realtek: Add support for new HP G12 laptops")
Fixes: b0550d4c2dd8 ("ALSA: hda/common: Use auto cleanup for temporary buffers")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20251216140634.171890-10-tiwai@suse.de
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Replace the manual spin lock/unlock pairs with guard() for code
simplification.
Only code refactoring, and no behavior change.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250827072916.31933-25-tiwai@suse.de
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The release of temporary kmalloced buffers can be nicely handled via
the standard __free(kfree).
Only code refactoring, and no behavior change.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250827072916.31933-20-tiwai@suse.de
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Replace the manual mutex lock/unlock pairs with guard().
Only code refactoring, and no behavior change.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250827072916.31933-8-tiwai@suse.de
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There are temporary DSP locking/unlocking patterns found in various
places, and those can be cleaned up nicely with the guard() macro
calling snd_hdac_dsp_lock() and *_unlock().
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250827072916.31933-7-tiwai@suse.de
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The new macro CLASS(snd_hda_power_pm) can replace the manual
snd_hda_power_up_pm() and _down() calls gracefully.
A part of the code in codec_exec_verb() is factored out to a function,
so that the auto-cleanup can be well scoped.
Merely cleanups and no functional changes.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250827072916.31933-6-tiwai@suse.de
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Use 'unsigned int' instead of 'int' for the local variable 'devlist_len'
because snd_hda_get_devices() returns an 'unsigned int' and the length
cannot be negative. Update the print format specifier and the if
condition accordingly.
Reformat calling snd_hda_codec_read() to fit in a single line while
we're at it.
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://patch.msgid.link/20250813210059.215912-2-thorsten.blum@linux.dev
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Use min() to simplify snd_hda_get_devices() and improve its readability.
Change the function parameter 'max_devices' from 'int' to 'unsigned int'
to avoid a min() signedness error. Update all related local variables
and the function's return type to 'unsigned int' accordingly.
No functional changes intended.
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://patch.msgid.link/20250813205507.215658-2-thorsten.blum@linux.dev
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Use 'int' instead of 'unsigned int' because the local variable 'parm'
can be negative.
While an unsigned integer is harmless in practice due to the implicit
type conversion, it's safer and more idiomatic to use a signed integer
to properly check for -1.
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://patch.msgid.link/20250813103418.164110-2-thorsten.blum@linux.dev
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Use a safer function strscpy() instead of strcpy() for copying to
arrays.
Only idiomatic code replacement, and no functional changes.
Link: https://patch.msgid.link/20250711083051.18759-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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snd_hda_codec_build_controls()
The error from snd_hda_codec_init() was ignored in
snd_hda_codec_build_controls(), which should have been taken account
and abort the flow. Fix it now.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250709160434.1859-28-tiwai@suse.de
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After all conversions, driver->ops became a must in most places
(except for the codec power setup which might be called before binding
to the codec driver), hence we can get rid of the superfluous
driver->ops NULL checks, too.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250709160434.1859-26-tiwai@suse.de
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Now that all patch_ops usage have been converted to the new
hda_codec_ops probe, we can drop patch_ops from the hda_codec,
together with the calls of patch_ops callbacks.
The hda_codec_ops.free callback is removed as all have been replaced
with the new remove callback.
Also, correct comments mentioning "patch"; it's replaced with "codec
driver".
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250709160434.1859-25-tiwai@suse.de
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Until now, we use "patch_ops" embedded in hda_codec object for
defining the callbacks that are used in various places to manage
HD-audio codec. But from the device driver POV, this should have been
rather the driver ops, instead of the callbacks in the codec object.
This patch defines the driver ops for HD-audio codec driver as the
replacement. We reuse the same struct hda_codec_ops, and this is put
as hda_codec_driver.ops. When the driver->ops callbacks are defined,
they are called primarily instead of codec->patch_ops callbacks.
With converting to the driver ops, there is no need to pass the ugly
patch_ops handling in hda_device_id tables. That is, driver_data
field of hda_device_id becomes really optional and it can be used for
passing the codec-specific data (e.g. specifying a model).
The codec entries after the conversion should be with HDA_CODEC_ID()
and co, instead of the former HDA_CODEC_ENTRY().
Once after converting all codec drivers to use driver ops, we can get
rid of codec patch_ops.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250709160434.1859-10-tiwai@suse.de
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In the past, we unified HD-audio HDMI codec driver once with a slight
hope that more vendors will follow the standard, but in reality, the
driver received more and more vendor-specific code. In order to make
the messy code a bit more understandable, this patch splits the HDMI
codec driver into multiple drivers again.
Namely, the vendor-specific code for Intel, AMD and Nvidia are moved
into the own drivers, while we split the common HDMI code to two
drivers, the generic HDMI driver and the simple HDMI driver.
So, now we have:
- The generic HDMI driver (snd-hda-codec-hdmi):
providing the common helpers, also supports Glenfly HDMI codecs and
some other codecs that don't need vendor-specific stuff
- The simple HDMI driver (snd-hda-codec-simplehdmi):
devices with no dynamic PCM assignment and with fixed channels,
mostly used by some other drivers, but this driver alone suffices
for VIA HDMI codec support, too
- Intel HDMI driver (snd-hda-codec-intelhdmi):
bound with i915 / Xe DRM, based on the generic HDMI driver
- AMD/ATI HDMI driver (snd-hda-codec-atihdmi):
optionally bound with radeon / amdgpu DRM, based on the generic HDMI
driver
- Nvidia HDMI driver (snd-hda-codec-nvhdmi);
optionally bound with nouveau DRM, based on the generic HDMI driver
- Legacy Nvidia HDMI driver (snd-hda-codec-nvhdmi-mcp):
for 2ch or 8ch outputs, based on the simple HDMI driver
- Nvidia Tegra HDMI driver (snd-hda-codec-tegrahdmi):
based on the generic HDMI driver
Along with the driver split, the enable_silent_stream module option is
moved to snd-hda-codec-intelhdmi, too, as it's an Intel-specific
feature.
Most of the changes here are just to split and move the code to
different files, as well as to rename/expose the functions that are
commonly used by drivers.
The silent stream handling code is slightly modified for putting the
stuff into Intel driver; now a new callback "silent_stream" is defined
in hdmi_ops, and it's called in silent_stream_enable() and *_disable()
functions. The runtime-PM handling in silent_stream_enable() was
cleaned up, and rather taking the runtime PM refcount in the
silent_stream() callback appropriately, instead.
Other than that, there should be no functional changes.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250709160434.1859-9-tiwai@suse.de
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CONFIG_SND_HDA_PREALLOC_SIZE is used only by controller.c in
sound/hda/common, hence it depends on CONFIG_SND_HDA.
Move the definition to the right place inside SND_HDA if/endif block
in sound/hda/common/Kconfig.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250709160434.1859-5-tiwai@suse.de
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The snd-hda-codec module contains the most of common code used by both
HD-audio controller and codec drivers, and it's basically independent
from PCI. Let's move the code to sound/hda/common directory as a part
of code reorganization.
The hda_ prefix is dropped from the most of file names as it's rather
superfluous.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250709160434.1859-4-tiwai@suse.de
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