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authorLinus Torvalds <torvalds@g5.osdl.org>2006-06-24 21:32:18 (GMT)
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-24 21:47:59 (GMT)
commitd02f40e81e003be6ddba5c176f2e40ea290c3729 (patch)
tree9a8147cc77bc6fead512abf6dfce25d4c38fa6b2
parenteb71c87a492b7090ff9e8ac46912c480a1687e38 (diff)
downloadlinux-d02f40e81e003be6ddba5c176f2e40ea290c3729.tar.xz
Enable minimal per-device resume tracing
This is the minimal resume trace code to find which device resume (if any) results in problems. Usually, you'd use the information this generates as a starting point to adding more fine-grained trace event points. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--drivers/base/power/resume.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/base/power/resume.c b/drivers/base/power/resume.c
index 317edbf..520679c 100644
--- a/drivers/base/power/resume.c
+++ b/drivers/base/power/resume.c
@@ -9,6 +9,7 @@
*/
#include <linux/device.h>
+#include <linux/resume-trace.h>
#include "../base.h"
#include "power.h"
@@ -23,6 +24,8 @@ int resume_device(struct device * dev)
{
int error = 0;
+ TRACE_DEVICE(dev);
+ TRACE_RESUME(0);
down(&dev->sem);
if (dev->power.pm_parent
&& dev->power.pm_parent->power.power_state.event) {
@@ -36,6 +39,7 @@ int resume_device(struct device * dev)
error = dev->bus->resume(dev);
}
up(&dev->sem);
+ TRACE_RESUME(error);
return error;
}