kernel/git/stable/linux.git/sound/soc/codecs/sigmadsp.c, branch master

ASoC: sigmadsp: Use flexible array for control cache

2026-05-16T02:30:33+00:00

Allocate SigmaDSP controls with kzalloc_flex() for the trailing cache data instead of open-coding the size calculation. Annotate the cache array with its existing byte count so the allocation helper can initialize the counter. Assisted-by: Codex:GPT-5.5 Signed-off-by: Rosen Penev Link: https://patch.msgid.link/20260511230351.28868-1-rosenp@gmail.com Signed-off-by: Mark Brown

Convert 'alloc_flex' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

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

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

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

ASoC: sigmadsp: Add missing module description

2024-05-08T11:51:08+00:00

Now that make W=1 starts complaining the lack of MODULE_DESCRIPTION(), let's add the missing information. Suggested-by: Andy Shevchenko Link: https://lore.kernel.org/r/ZjpQm-hxLQtpgkUx@smile.fi.intel.com Signed-off-by: Takashi Iwai Reviewed-by: Dragan Simic Link: https://lore.kernel.org/r/20240508091909.27062-3-tiwai@suse.de Signed-off-by: Mark Brown

ASoC: sigmadsp: Add __counted_by for struct sigmadsp_data and use struct_size()

2023-10-16T11:55:16+00:00

Prepare for the coming implementation by GCC and Clang of the __counted_by attribute. Flexible array members annotated with __counted_by can have their accesses bounds-checked at run-time via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions). While there, use struct_size() and size_sub() helpers, instead of the open-coded version, to calculate the size for the allocation of the whole flexible structure, including of course, the flexible-array member. This code was found with the help of Coccinelle, and audited and fixed manually. Signed-off-by: "Gustavo A. R. Silva" Reviewed-by: Kees Cook Link: https://lore.kernel.org/r/ZSRvh1j2MVVhuOUv@work Signed-off-by: Mark Brown

ASoC: sigmadsp: Simplify with snd_ctl_activate_id()

2023-07-20T08:02:42+00:00

Use the standard snd_ctl_activate_id() helper instead of an open code for code simplification. Acked-by: Mark Brown Cc: Lars-Peter Clausen Cc: "Nuno Sá" Link: https://lore.kernel.org/r/20230718141304.1032-7-tiwai@suse.de Signed-off-by: Takashi Iwai

ASoC: sigmadsp: switch to use kmemdup_nul() helper

2022-08-25T13:17:33+00:00

Use kmemdup_nul() helper instead of open-coding to simplify the code. Signed-off-by: Yang Yingliang Link: https://lore.kernel.org/r/20220825123525.1845695-1-yangyingliang@huawei.com Signed-off-by: Mark Brown

ASoC: sigmadsp: Disable cache mechanism for readbacks

2021-04-19T15:51:52+00:00

The ALSA control readback functionality only works for non-volatile controls, i.e. control values that does not change on their own without driver interaction. This doesn't work for readbacks since the DSP firmware updates the control value. Disable the cache mechanism in the driver if the control name matches the prefix used for readbacks to ensure that the control value is valid. Signed-off-by: Niklas Carlsson Link: https://lore.kernel.org/r/20210419144901.9441-1-Niklas.Carlsson@axis.com Signed-off-by: Mark Brown

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 149

2019-05-30T18:25:18+00:00

Based on 1 normalized pattern(s): licensed under the gpl 2 or later extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 82 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Kate Stewart Reviewed-by: Richard Fontana Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190524100845.150836982@linutronix.de Signed-off-by: Greg Kroah-Hartman

ASoC: sigmadsp: safeload should not have lower byte limit

2018-08-28T19:19:20+00:00

Fixed range in safeload conditional to allow safeload to up to 20 bytes, without a lower limit. Signed-off-by: Danny Smith Acked-by: Lars-Peter Clausen Signed-off-by: Mark Brown