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Revert "PM: sleep: Do not assume that "mem" is always present"

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Revert commit bfcc1e67ff ("PM: sleep: Do not assume that "mem" is
always present"), because it breaks compatibility with user space
utilities assuming that "mem" will always be present in
/sys/power/state.

Fixes: bfcc1e67ff ("PM: sleep: Do not assume that "mem" is always present")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Rafael J. Wysocki 2021-10-19 20:55:04 +02:00
parent 5416da01ff
commit c1bfc59818
1 changed files with 2 additions and 2 deletions
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4
kernel/power/suspend.c
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@ -171,7 +171,8 @@ static bool valid_state(suspend_state_t state)
void __init pm_states_init(void)
{
/* "freeze" is always present in /sys/power/state. */
/* "mem" and "freeze" are always present in /sys/power/state. */
pm_states[PM_SUSPEND_MEM] = pm_labels[PM_SUSPEND_MEM];
pm_states[PM_SUSPEND_TO_IDLE] = pm_labels[PM_SUSPEND_TO_IDLE];
/*
* Suspend-to-idle should be supported even without any suspend_ops,
@ -213,7 +214,6 @@ void suspend_set_ops(const struct platform_suspend_ops *ops)
}
if (valid_state(PM_SUSPEND_MEM)) {
mem_sleep_states[PM_SUSPEND_MEM] = mem_sleep_labels[PM_SUSPEND_MEM];
pm_states[PM_SUSPEND_MEM] = pm_labels[PM_SUSPEND_MEM];
if (mem_sleep_default >= PM_SUSPEND_MEM)
mem_sleep_current = PM_SUSPEND_MEM;
}