[alsa-devel] [PATCH 1/2] sound: Close holes in struct snd_pcm_hw_rule

On a 64-bit system there are two 32-bit holes due to the alignment of 64-bit fields. Reordering things slightly gets rid of those holes, reducing the size of the struct by 17% percent of its original size.

Signed-off-by: Lars-Peter Clausen lars@metafoo.de --- include/sound/pcm.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/sound/pcm.h b/include/sound/pcm.h index 0cb7f3f..d632809 100644 --- a/include/sound/pcm.h +++ b/include/sound/pcm.h @@ -224,9 +224,10 @@ typedef int (*snd_pcm_hw_rule_func_t)(struct snd_pcm_hw_params *params,

struct snd_pcm_hw_rule { unsigned int cond; - snd_pcm_hw_rule_func_t func; int var; int deps[4]; + + snd_pcm_hw_rule_func_t func; void *private; };