commit acb03d440b8a723181e1d45e3517e43cb0792f8a
author Eliot Blennerhassett <eblennerhassett@audioscience.com> Sat Jul 23 12:36:25 2011 +1200
committer Takashi Iwai <tiwai@suse.de> Sun Jul 24 13:34:32 2011 +0200
tree 19b93ccf3a036032c1d49ad6b5248c4a4dd6a480
parent 8f398ae72fc7e03356fc1ee6b54beef79ba6be6a

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>

sound/core/pcm_lib.c

diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index f134130..86d0caf 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -128,7 +128,8 @@
 	}
 }
 
-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 @@
 		 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 @@
 	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 @@
 		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 @@
 	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 @@
 	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",