ALSA: pcm/oss: refer to parameters instead of copying to reduce usage of kernel stack

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Some functions in compatibility layer for Open Sound System interface has
local variable to copy some parameters in runtime of PCM substream, while
this can be replaced with reference of pointers to parameter itself. This
brings an advantage to reduce usage of kernel stack.

This commit applies this idea.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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Takashi Sakamoto 2017-05-17 08:48:19 +09:00 • committed by Takashi Iwai

parent b55f9fdcd3

commit e76bf3c4b4

3 changed files with 12 additions and 11 deletions

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16

sound/core/oss/pcm_oss.c

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5

sound/core/oss/pcm_plugin.c

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2

sound/core/oss/pcm_plugin.h

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