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authorEliot Blennerhassett <eblennerhassett@audioscience.com>2011-07-23 12:36:25 +1200
committerTakashi Iwai <tiwai@suse.de>2011-07-24 13:34:32 +0200
commitacb03d440b8a723181e1d45e3517e43cb0792f8a (patch)
tree19b93ccf3a036032c1d49ad6b5248c4a4dd6a480 /sound/core/pcm_lib.c
parent8f398ae72fc7e03356fc1ee6b54beef79ba6be6a (diff)
downloadlinux-acb03d440b8a723181e1d45e3517e43cb0792f8a.tar.bz2
ALSA: Make snd_pcm_debug_name usable outside pcm_lib
Formatting a PCM name is useful for module debug too. Add snd_prefix when making function public. [minor coding-style fixes by tiwai] Signed-off-by: Eliot Blennerhassett <eblennerhassett@audioscience.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core/pcm_lib.c')
-rw-r--r--sound/core/pcm_lib.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index f1341308beda..86d0caf91b35 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -128,7 +128,8 @@ void snd_pcm_playback_silence(struct snd_pcm_substream *substream, snd_pcm_ufram
}
}
-static void pcm_debug_name(struct snd_pcm_substream *substream,
+#ifdef CONFIG_SND_DEBUG
+void snd_pcm_debug_name(struct snd_pcm_substream *substream,
char *name, size_t len)
{
snprintf(name, len, "pcmC%dD%d%c:%d",
@@ -137,6 +138,8 @@ static void pcm_debug_name(struct snd_pcm_substream *substream,
substream->stream ? 'c' : 'p',
substream->number);
}
+EXPORT_SYMBOL(snd_pcm_debug_name);
+#endif
#define XRUN_DEBUG_BASIC (1<<0)
#define XRUN_DEBUG_STACK (1<<1) /* dump also stack */
@@ -168,7 +171,7 @@ static void xrun(struct snd_pcm_substream *substream)
snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
if (xrun_debug(substream, XRUN_DEBUG_BASIC)) {
char name[16];
- pcm_debug_name(substream, name, sizeof(name));
+ snd_pcm_debug_name(substream, name, sizeof(name));
snd_printd(KERN_DEBUG "XRUN: %s\n", name);
dump_stack_on_xrun(substream);
}
@@ -243,7 +246,7 @@ static void xrun_log_show(struct snd_pcm_substream *substream)
return;
if (xrun_debug(substream, XRUN_DEBUG_LOGONCE) && log->hit)
return;
- pcm_debug_name(substream, name, sizeof(name));
+ snd_pcm_debug_name(substream, name, sizeof(name));
for (cnt = 0, idx = log->idx; cnt < XRUN_LOG_CNT; cnt++) {
entry = &log->entries[idx];
if (entry->period_size == 0)
@@ -319,7 +322,7 @@ static int snd_pcm_update_hw_ptr0(struct snd_pcm_substream *substream,
if (pos >= runtime->buffer_size) {
if (printk_ratelimit()) {
char name[16];
- pcm_debug_name(substream, name, sizeof(name));
+ snd_pcm_debug_name(substream, name, sizeof(name));
xrun_log_show(substream);
snd_printd(KERN_ERR "BUG: %s, pos = %ld, "
"buffer size = %ld, period size = %ld\n",
@@ -364,7 +367,7 @@ static int snd_pcm_update_hw_ptr0(struct snd_pcm_substream *substream,
if (xrun_debug(substream, in_interrupt ?
XRUN_DEBUG_PERIODUPDATE : XRUN_DEBUG_HWPTRUPDATE)) {
char name[16];
- pcm_debug_name(substream, name, sizeof(name));
+ snd_pcm_debug_name(substream, name, sizeof(name));
snd_printd("%s_update: %s: pos=%u/%u/%u, "
"hwptr=%ld/%ld/%ld/%ld\n",
in_interrupt ? "period" : "hwptr",