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Commit bcbb1553 authored by Tim Gardner's avatar Tim Gardner Committed by Takashi Iwai
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ALSA: pcm: Add snd_printd_ratelimit() 



Direct calls to printk_limit() will emit log noise even when CONFIG_SND_DEBUG is not
defined. Add a wrapper macro around printk_limit() that is conditionally defined by
CONFIG_SND_DEBUG.

Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Yacine Belkadi <yacine.belkadi.1@gmail.com>
Signed-off-by: default avatarTim Gardner <tim.gardner@canonical.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent c841ad2a

include/sound/core.h

+8 −0
Original line number Diff line number Diff line
@@ -27,6 +27,7 @@ 
#include <linux/rwsem.h>		/* struct rw_semaphore */

#include <linux/pm.h>			/* pm_message_t */

#include <linux/stringify.h>

#include <linux/printk.h>



/* number of supported soundcards */

#ifdef CONFIG_SND_DYNAMIC_MINORS
@@ -375,6 +376,11 @@ void __snd_printk(unsigned int level, const char *file, int line, 
 */

#define snd_BUG()		WARN(1, "BUG?\n")



/**

 * Suppress high rates of output when CONFIG_SND_DEBUG is enabled.

 */

#define snd_printd_ratelimit() printk_ratelimit()



/**

 * snd_BUG_ON - debugging check macro

 * @cond: condition to evaluate
@@ -398,6 +404,8 @@ static inline void _snd_printd(int level, const char *format, ...) {} 
	unlikely(__ret_warn_on); \

})



static inline bool snd_printd_ratelimit(void) { return false; }



#endif /* CONFIG_SND_DEBUG */



#ifdef CONFIG_SND_DEBUG_VERBOSE