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cd354f1ae7
After Al Viro (finally) succeeded in removing the sched.h #include in module.h recently, it makes sense again to remove other superfluous sched.h includes. There are quite a lot of files which include it but don't actually need anything defined in there. Presumably these includes were once needed for macros that used to live in sched.h, but moved to other header files in the course of cleaning it up. To ease the pain, this time I did not fiddle with any header files and only removed #includes from .c-files, which tend to cause less trouble. Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha, arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig, allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all configs in arch/arm/configs on arm. I also checked that no new warnings were introduced by the patch (actually, some warnings are removed that were emitted by unnecessarily included header files). Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
99 lines
2.2 KiB
C
99 lines
2.2 KiB
C
/*
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* poweroff.c - ACPI handler for powering off the system.
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*
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* AKA S5, but it is independent of whether or not the kernel supports
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* any other sleep support in the system.
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*
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* Copyright (c) 2005 Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
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*
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* This file is released under the GPLv2.
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*/
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#include <linux/pm.h>
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#include <linux/init.h>
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#include <acpi/acpi_bus.h>
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#include <linux/sysdev.h>
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#include <asm/io.h>
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#include "sleep.h"
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int acpi_sleep_prepare(u32 acpi_state)
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{
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#ifdef CONFIG_ACPI_SLEEP
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/* do we have a wakeup address for S2 and S3? */
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if (acpi_state == ACPI_STATE_S3) {
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if (!acpi_wakeup_address) {
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return -EFAULT;
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}
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acpi_set_firmware_waking_vector((acpi_physical_address)
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virt_to_phys((void *)
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acpi_wakeup_address));
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}
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ACPI_FLUSH_CPU_CACHE();
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acpi_enable_wakeup_device_prep(acpi_state);
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#endif
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acpi_gpe_sleep_prepare(acpi_state);
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acpi_enter_sleep_state_prep(acpi_state);
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return 0;
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}
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#ifdef CONFIG_PM
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void acpi_power_off(void)
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{
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/* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */
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printk("%s called\n", __FUNCTION__);
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local_irq_disable();
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/* Some SMP machines only can poweroff in boot CPU */
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acpi_enter_sleep_state(ACPI_STATE_S5);
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}
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static int acpi_shutdown(struct sys_device *x)
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{
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switch (system_state) {
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case SYSTEM_POWER_OFF:
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/* Prepare to power off the system */
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return acpi_sleep_prepare(ACPI_STATE_S5);
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case SYSTEM_SUSPEND_DISK:
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/* Prepare to suspend the system to disk */
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return acpi_sleep_prepare(ACPI_STATE_S4);
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default:
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return 0;
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}
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}
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static struct sysdev_class acpi_sysclass = {
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set_kset_name("acpi"),
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.shutdown = acpi_shutdown
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};
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static struct sys_device device_acpi = {
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.id = 0,
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.cls = &acpi_sysclass,
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};
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static int acpi_poweroff_init(void)
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{
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if (!acpi_disabled) {
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u8 type_a, type_b;
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acpi_status status;
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status =
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acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b);
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if (ACPI_SUCCESS(status)) {
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int error;
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error = sysdev_class_register(&acpi_sysclass);
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if (!error)
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error = sysdev_register(&device_acpi);
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if (!error)
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pm_power_off = acpi_power_off;
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return error;
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}
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}
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return 0;
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}
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late_initcall(acpi_poweroff_init);
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#endif /* CONFIG_PM */
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