[alsa-devel] [PATCH 2/3] ALSA: pcm: enable parameter tracepoints only when CONFIG_SND_DEBUG is enabled

[Takashi Sakamoto]

In a previous commit, tracepoints are added for PCM parameter processing.
As long as I know, this implementation increases size of relocatable
object by 35%. For vendors who are conscious of memory footprint, it
brings apparent disadvantage.

This commit utilizes CONFIG_SND_DEBUG configuration to enable/disable the
tracepoints.

Signed-off-by: Takashi Sakamoto <o-takashi at sakamocchi.jp>
---
 sound/core/pcm_native.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index b98b3ccde4f0..2ce3c98a1418 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -39,8 +39,15 @@
 
 #include "pcm_local.h"
 
+#ifdef CONFIG_SND_DEBUG
 #define CREATE_TRACE_POINTS
 #include "pcm_param_trace.h"
+#else
+#define trace_hw_mask_param_enabled()		0
+#define trace_hw_interval_param_enabled()	0
+#define trace_hw_mask_param(substream, type, index, prev, curr)
+#define trace_hw_interval_param(substream, type, index, prev, curr)
+#endif
 
 /*
  *  Compatibility
-- 
2.11.0