ACPI: cleanup acpi.h

Two cleanups to <linux/acpi.h>:
* Stop defining acpi_mp_config, it isn't used anywhere.
* Discard nested "#ifdef CONFIG_ACPI", they are useless and
  error-prone.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>

include/linux/acpi.h

@@ -43,8 +43,6 @@
 #include <linux/dmi.h>
 
 
-#ifdef CONFIG_ACPI
-
 enum acpi_irq_model_id {
 	ACPI_IRQ_MODEL_PIC = 0,
 	ACPI_IRQ_MODEL_IOAPIC,
@@ -116,20 +114,12 @@ int acpi_unmap_lsapic(int cpu);
 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
 
-extern int acpi_mp_config;
-
 extern struct acpi_mcfg_allocation *pci_mmcfg_config;
 extern int pci_mmcfg_config_num;
 
 extern int sbf_port;
 extern unsigned long acpi_realmode_flags;
 
-#else	/* !CONFIG_ACPI */
-
-#define acpi_mp_config	0
-
-#endif 	/* !CONFIG_ACPI */
-
 int acpi_register_gsi (u32 gsi, int triggering, int polarity);
 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
 
@@ -145,8 +135,6 @@ extern int acpi_get_override_irq(int bus_irq, int *trigger, int *polarity);
  */
 void acpi_unregister_gsi (u32 gsi);
 
-#ifdef CONFIG_ACPI
-
 struct acpi_prt_entry {
 	struct list_head	node;
 	struct acpi_pci_id	id;
@@ -179,8 +167,6 @@ struct acpi_pci_driver {
 int acpi_pci_register_driver(struct acpi_pci_driver *driver);
 void acpi_pci_unregister_driver(struct acpi_pci_driver *driver);
 
-#endif /* CONFIG_ACPI */
-
 #ifdef CONFIG_ACPI_EC
 
 extern int ec_read(u8 addr, u8 *val);