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| author |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-07-20 03:38:07 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-07-22 02:33:03 +0200 |
| commit | 8915aa2042f85ecf86d4a202ef6d04bf06f05cca (patch) | |
| tree | 85458428f75e7cdbcf0271614a0aec29ed3fd850 /kernel/power/suspend.c | |
| parent | PM / sleep: Do not print debug messages by default (diff) | |
| download | linux-dev-8915aa2042f85ecf86d4a202ef6d04bf06f05cca.tar.xz linux-dev-8915aa2042f85ecf86d4a202ef6d04bf06f05cca.zip | |
PM / sleep: Mark suspend/hibernation start and finish
Regardless of whether or not debug messages from the core system
suspend/hibernation code are enabled, it is useful to know when
system-wide transitions start and finish (or fail), so print "info"
messages at these points.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Mark Salyzyn <salyzyn@android.com>
Diffstat (limited to 'kernel/power/suspend.c')
| -rw-r--r-- | kernel/power/suspend.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c index 4f10773322fa..18cdb1596d27 100644 --- a/kernel/power/suspend.c +++ b/kernel/power/suspend.c @@ -584,6 +584,7 @@ int pm_suspend(suspend_state_t state) if (state <= PM_SUSPEND_ON || state >= PM_SUSPEND_MAX) return -EINVAL; + pr_info("PM: suspend entry (%s)\n", pm_states[state]); error = enter_state(state); if (error) { suspend_stats.fail++; @@ -591,6 +592,7 @@ int pm_suspend(suspend_state_t state) } else { suspend_stats.success++; } + pr_info("PM: suspend exit\n"); return error; } EXPORT_SYMBOL(pm_suspend); |