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authorRafael J. Wysocki <rjw@sisk.pl>2012-06-21 00:19:33 +0200
committerRafael J. Wysocki <rjw@sisk.pl>2012-07-01 13:31:23 +0200
commitb2df1d4f8b95d9d1e3f064cef02fc5c5116b05cf (patch)
tree6e891ad6ad748ea737ab5774983f90d9be720446 /drivers/base
parent4b7760ba0dd3319f66886ab2335a0fbecdbc808a (diff)
downloadop-kernel-dev-b2df1d4f8b95d9d1e3f064cef02fc5c5116b05cf.zip
op-kernel-dev-b2df1d4f8b95d9d1e3f064cef02fc5c5116b05cf.tar.gz
PM / Sleep: Separate printing suspend times from initcall_debug
Change the behavior of the newly introduced /sys/power/pm_print_times attribute so that its initial value depends on initcall_debug, but setting it to 0 will cause device suspend/resume times not to be printed, even if initcall_debug has been set. This way, the people who use initcall_debug for reasons other than PM debugging will be able to switch the suspend/resume times printing off, if need be. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/base')
-rw-r--r--drivers/base/power/main.c4
-rw-r--r--drivers/base/power/power.h11
2 files changed, 2 insertions, 13 deletions
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 6e4db96..df5f41d 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -166,7 +166,7 @@ static ktime_t initcall_debug_start(struct device *dev)
{
ktime_t calltime = ktime_set(0, 0);
- if (pm_print_times) {
+ if (pm_print_times_enabled) {
pr_info("calling %s+ @ %i, parent: %s\n",
dev_name(dev), task_pid_nr(current),
dev->parent ? dev_name(dev->parent) : "none");
@@ -181,7 +181,7 @@ static void initcall_debug_report(struct device *dev, ktime_t calltime,
{
ktime_t delta, rettime;
- if (pm_print_times) {
+ if (pm_print_times_enabled) {
rettime = ktime_get();
delta = ktime_sub(rettime, calltime);
pr_info("call %s+ returned %d after %Ld usecs\n", dev_name(dev),
diff --git a/drivers/base/power/power.h b/drivers/base/power/power.h
index 12c77b7..eeb4bff 100644
--- a/drivers/base/power/power.h
+++ b/drivers/base/power/power.h
@@ -85,14 +85,3 @@ static inline int pm_qos_sysfs_add(struct device *dev) { return 0; }
static inline void pm_qos_sysfs_remove(struct device *dev) {}
#endif
-
-#ifdef CONFIG_PM_DEBUG
-
-extern int pm_print_times_enabled;
-#define pm_print_times (initcall_debug || pm_print_times_enabled)
-
-#else /* CONFIG_PM_DEBUG */
-
-#define pm_print_times initcall_debug
-
-#endif /* CONFIG_PM_DEBUG */
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