[ALSA] PCM core - introduce CONFIG_SND_PCM_XRUN_DEBUG

This patch makes the XRUN (overrun/underrun) notification code optional.

Signed-off-by: Jaroslav Kysela <perex@suse.cz>

1 files changed, 10 insertions, 0 deletions

diff --git a/sound/core/Kconfig b/sound/core/Kconfig
index 8efc1b12f3a..f3a07fb2e69 100644
--- a/sound/core/Kconfig
+++ b/sound/core/Kconfig
@@ -171,3 +171,13 @@ config SND_DEBUG_DETECT
         help
           Say Y here to enable extra-verbose log messages printed when
           detecting devices.
+
+config SND_PCM_XRUN_DEBUG
+        bool "Enable PCM ring buffer overrun/underrun debugging"
+        default n
+        depends on SND_DEBUG
+        help
+          Say Y to enable the PCM ring buffer overrun/underrun debugging.
+          It is usually not required, but if you have trouble with
+          sound clicking when system is loaded, it may help to determine
+          the process or driver which causes the scheduling gaps.