From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Rafael J. Wysocki" Subject: [PATCH 2/6] ACPI / PM: Do not switch interrupts off/on in acpi_suspend_enter() Date: Mon, 7 Feb 2011 23:19:10 +0100 Message-ID: <201102072319.10327.rjw@sisk.pl> References: <201102072316.41270.rjw@sisk.pl> Mime-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <201102072316.41270.rjw@sisk.pl> Sender: linux-kernel-owner@vger.kernel.org To: Len Brown Cc: LKML , ACPI Devel Mailing List , Linux PM mailing list , Ingo Molnar List-Id: linux-acpi@vger.kernel.org From: Rafael J. Wysocki The function acpi_suspend_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(-) Index: linux-2.6/drivers/acpi/sleep.c =================================================================== --- linux-2.6.orig/drivers/acpi/sleep.c +++ linux-2.6/drivers/acpi/sleep.c @@ -243,7 +243,6 @@ static int acpi_suspend_begin(suspend_st static int acpi_suspend_enter(suspend_state_t pm_state) { acpi_status status = AE_OK; - unsigned long flags = 0; u32 acpi_state = acpi_target_sleep_state; ACPI_FLUSH_CPU_CACHE(); @@ -256,7 +255,6 @@ static int acpi_suspend_enter(suspend_st return error; } - local_irq_save(flags); switch (acpi_state) { case ACPI_STATE_S1: barrier(); @@ -290,7 +288,6 @@ static int acpi_suspend_enter(suspend_st /* Allow EC transactions to happen. */ acpi_ec_unblock_transactions_early(); - local_irq_restore(flags); printk(KERN_DEBUG "Back to C!\n"); suspend_nvs_restore();