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ACPI: processor_idle: Use acpi_idle_play_dead() for all C-states

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Notice that acpi_processor_setup_cstates() can set state->enter_dead to acpi_idle_play_dead() for all C-states unconditionally and remove the
confusing C-state type check done before setting it.

No intentional functional impact.

Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Tested-by: Mario Limonciello <mario.limonciello@amd.com> # 6.12-rc7
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/2373563.ElGaqSPkdT@rjwysocki.net
This commit is contained in:
Rafael J. Wysocki 2024-11-14 18:47:55 +01:00
parent 4e9ad033b4
commit bf1d33dfb1
1 changed files with 6 additions and 6 deletions
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12
drivers/acpi/processor_idle.c
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@ -803,12 +803,12 @@ static int acpi_processor_setup_cstates(struct acpi_processor *pr)
state->enter = acpi_idle_enter;
state->flags = 0;
if (cx->type == ACPI_STATE_C1 || cx->type == ACPI_STATE_C2 ||
cx->type == ACPI_STATE_C3) {
state->enter_dead = acpi_idle_play_dead;
if (cx->type != ACPI_STATE_C3)
drv->safe_state_index = count;
}
state->enter_dead = acpi_idle_play_dead;
if (cx->type == ACPI_STATE_C1 || cx->type == ACPI_STATE_C2)
drv->safe_state_index = count;
/*
* Halt-induced C1 is not good for ->enter_s2idle, because it
* re-enables interrupts on exit. Moreover, C1 is generally not