[PATCH 1/2] PM / suspend: Use mem_sleep_labels[] strings in messages

From: Rafael J. Wysocki
Date: Fri Jul 21 2017 - 08:59:24 EST


From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>

Some messages in suspend.c currently print state names from
pm_states[], but that may be confusing if the mem_sleep sysfs
attribute is changed to anything different from "mem", because
in those cases the messages will say either "freeze" or "standby"
after writing "mem" to /sys/power/state.

To avoid the confusion, use mem_sleep_labels[] strings in those
messages instead.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
---
kernel/power/suspend.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

Index: linux-pm/kernel/power/suspend.c
===================================================================
--- linux-pm.orig/kernel/power/suspend.c
+++ linux-pm/kernel/power/suspend.c
@@ -555,7 +555,7 @@ static int enter_state(suspend_state_t s
trace_suspend_resume(TPS("sync_filesystems"), 0, false);
#endif

- pm_pr_dbg("Preparing system for sleep (%s)\n", pm_states[state]);
+ pm_pr_dbg("Preparing system for sleep (%s)\n", mem_sleep_labels[state]);
pm_suspend_clear_flags();
error = suspend_prepare(state);
if (error)
@@ -565,7 +565,7 @@ static int enter_state(suspend_state_t s
goto Finish;

trace_suspend_resume(TPS("suspend_enter"), state, false);
- pm_pr_dbg("Suspending system (%s)\n", pm_states[state]);
+ pm_pr_dbg("Suspending system (%s)\n", mem_sleep_labels[state]);
pm_restrict_gfp_mask();
error = suspend_devices_and_enter(state);
pm_restore_gfp_mask();
@@ -592,7 +592,7 @@ 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]);
+ pr_info("PM: suspend entry (%s)\n", mem_sleep_labels[state]);
error = enter_state(state);
if (error) {
suspend_stats.fail++;