From aad83b143008e1d406248803550bfbfc600b6398 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 8 Feb 2011 23:42:35 +0100 Subject: [PATCH] ACPI / PM: acpi_hibernation_enter() need not switch interrupts off The function acpi_hibernation_enter() is always called with interrupts off, so it doesn't need to switch them off and on. Signed-off-by: Rafael J. Wysocki --- drivers/acpi/sleep.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 0a81bf11f473..84f57143ad7c 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -457,16 +457,13 @@ static int acpi_hibernation_begin(void) static int acpi_hibernation_enter(void) { acpi_status status = AE_OK; - unsigned long flags = 0; ACPI_FLUSH_CPU_CACHE(); - local_irq_save(flags); /* This shouldn't return. If it returns, we have a problem */ status = acpi_enter_sleep_state(ACPI_STATE_S4); /* Reprogram control registers and execute _BFS */ acpi_leave_sleep_state_prep(ACPI_STATE_S4); - local_irq_restore(flags); return ACPI_SUCCESS(status) ? 0 : -EFAULT; }