PCM: shut up a compile "unused parameter" compile warning in pcm_multi.c

Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/src/pcm/pcm_multi.c b/src/pcm/pcm_multi.c
index 2db82c0cca548226744b833dd96e3069ac981ca4..f58852cac921fe47c5638297362ca1c8ca3d45ee 100644 (file)
--- a/src/pcm/pcm_multi.c
+++ b/src/pcm/pcm_multi.c
@@ -739,7 +739,7 @@ static int snd_pcm_multi_mmap(snd_pcm_t *pcm)
        return 0;
 }
 
-static int snd_pcm_multi_may_wait_for_avail_min(snd_pcm_t *pcm, snd_pcm_uframes_t avail)
+static int snd_pcm_multi_may_wait_for_avail_min(snd_pcm_t *pcm, snd_pcm_uframes_t avail ATTRIBUTE_UNUSED)
 {
        snd_pcm_multi_t *multi = pcm->private_data;
        snd_pcm_t *slave = multi->slaves[multi->master_slave].pcm;