From: Tim Gardner <[email protected]> 3.12-stable review patch. If anyone has any objections, please let me know.
=============== commit a5065eb6da55b226661456e6a7435f605df98111 upstream. BugLink: http://bugs.launchpad.net/bugs/1305133 Malfunctioning or slow devices can cause a flood of dmesg SPAM. I've ignored checkpatch.pl complaints about the use of printk_ratelimit() in favour of prior art in sound/usb/pcm.c. WARNING: Prefer printk_ratelimited or pr_<level>_ratelimited to printk_ratelimit + if (printk_ratelimit() && Cc: Jaroslav Kysela <[email protected]> Cc: Takashi Iwai <[email protected]> Cc: Eldad Zack <[email protected]> Cc: Daniel Mack <[email protected]> Cc: Clemens Ladisch <[email protected]> Signed-off-by: Tim Gardner <[email protected]> Signed-off-by: Takashi Iwai <[email protected]> Signed-off-by: Jiri Slaby <[email protected]> --- sound/usb/pcm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index b375d58871e7..d59e0c1a3e20 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -1491,7 +1491,8 @@ static void retire_playback_urb(struct snd_usb_substream *subs, * The error should be lower than 2ms since the estimate relies * on two reads of a counter updated every ms. */ - if (abs(est_delay - subs->last_delay) * 1000 > runtime->rate * 2) + if (printk_ratelimit() && + abs(est_delay - subs->last_delay) * 1000 > runtime->rate * 2) snd_printk(KERN_DEBUG "delay: estimated %d, actual %d\n", est_delay, subs->last_delay); -- 2.0.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
