kernel/linux.git/sound/core/oss/rate.c, branch linux-7.0.y

ALSA: core: Add SPDX license id to files

2026-02-18T07:52:08+00:00

Add an SPDX id of LGPL-2.0+ to files in the sound core sub-system that are missing ids. Remove boilerplate text. These files were originally submitted in a big commit for the ALSA sound system for kernel version 2.5.4, by Jaroslav Kysela, in Feb 2002. Signed-off-by: Tim Bird Link: https://patch.msgid.link/20260212183103.3720788-1-tim.bird@sony.com Signed-off-by: Takashi Iwai

ALSA: Fix typos in comments across various files

2024-09-30T07:52:31+00:00

This patch fixes typos in comments within the ALSA subsystem. These changes improve code readability without affecting functionality. Signed-off-by: Yu Jiaoliang Link: https://patch.msgid.link/20240924041749.3125507-1-yujiaoliang@vivo.com Signed-off-by: Takashi Iwai

ALSA: oss: Use DIV_ROUND_CLOSEST() instead of open-coding it

2020-12-25T08:11:54+00:00

Use DIV_ROUND_CLOSEST() instead of open-coding it. This documents intent and makes it more clear what is going on for the casual reviewer. Generated using the following the Coccinelle semantic patch. // @@ expression x, y; @@ -((x) + ((y) / 2)) / (y) +DIV_ROUND_CLOSEST(x, y) // Signed-off-by: Lars-Peter Clausen Link: https://lore.kernel.org/r/20201223172229.781-13-lars@metafoo.de Signed-off-by: Takashi Iwai

ALSA: core: Replace zero-length array with flexible-array member

2020-02-12T07:14:43+00:00

The current codebase makes use of the zero-length array language extension to the C90 standard, but the preferred mechanism to declare variable-length types such as these ones is a flexible array member[1][2], introduced in C99: struct foo { int stuff; struct boo array[]; }; By making use of the mechanism above, we will get a compiler warning in case the flexible array does not occur last in the structure, which will help us prevent some kind of undefined behavior bugs from being inadvertenly introduced[3] to the codebase from now on. This issue was found with the help of Coccinelle. [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html [2] https://github.com/KSPP/linux/issues/21 [3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour") Signed-off-by: Gustavo A. R. Silva Link: https://lore.kernel.org/r/20200211193910.GA4596@embeddedor Signed-off-by: Takashi Iwai

ALSA: pcm: oss: Use struct_size() helper

2019-05-24T05:59:19+00:00

Make use of the struct_size() helper instead of an open-coded version in order to avoid any potential type mistakes, in particular in the context in which this code is being used. So, replace the following form: sizeof(struct rate_priv) + src_format->channels * sizeof(struct rate_channel) with: struct_size(data, channels, src_format->channels) This code was detected with the help of Coccinelle. Signed-off-by: Gustavo A. R. Silva Signed-off-by: Takashi Iwai

ALSA: fix excessive background noise introduced by OSS emulation rate shrink

2009-02-23T06:49:04+00:00

Incorrect variable was used to get the next sample which caused S2 to be stuck with the same value resulting in loud background noise. Signed-off-by: Steve Chen Cc: Signed-off-by: Takashi Iwai

ALSA: Kill snd_assert() in sound/core/*

2008-08-13T09:46:35+00:00

Kill snd_assert() in sound/core/*, either removed or replaced with if () with snd_BUG_ON(). Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela

[ALSA] Remove sound/driver.h

2008-01-31T16:29:48+00:00

This header file exists only for some hacks to adapt alsa-driver tree. It's useless for building in the kernel. Let's move a few lines in it to sound/core.h and remove it. With this patch, sound/driver.h isn't removed but has just a single compile warning to include it. This should be really killed in future. Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela

[ALSA] Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.cz

2007-10-16T14:51:18+00:00

Signed-off-by: Jaroslav Kysela

[ALSA] Remove ifdefs from OSS PCM emulation codes

2007-10-16T13:58:30+00:00

Fix Makefile to compile files conditionally to CONFIG_SND_PCM_OSS_PLUGINS, and remove unneeded ifdefs in these files. Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela