Merge tag 'v3.15-rc1' into patchwork

Linux 3.15-rc1

* tag 'v3.15-rc1': (12180 commits)
  Linux 3.15-rc1
  mm: Initialize error in shmem_file_aio_read()
  cifs: Use min_t() when comparing "size_t" and "unsigned long"
  sym53c8xx_2: Set DID_REQUEUE return code when aborting squeue
  powerpc: Don't try to set LPCR unless we're in hypervisor mode
  futex: update documentation for ordering guarantees
  ceph: fix pr_fmt() redefinition
  vti: don't allow to add the same tunnel twice
  gre: don't allow to add the same tunnel twice
  drivers: net: xen-netfront: fix array initialization bug
  missing bits of "splice: fix racy pipe->buffers uses"
  cifs: fix the race in cifs_writev()
  ceph_sync_{,direct_}write: fix an oops on ceph_osdc_new_request() failure
  pktgen: be friendly to LLTX devices
  r8152: check RTL8152_UNPLUG
  net: sun4i-emac: add promiscuous support
  net/apne: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO
  blackfin: cleanup board files
  bf609: clock: drop unused clock bit set/clear functions
  Blackfin: bf537: rename "CONFIG_ADT75"
  ...

1 files changed, 30 insertions, 22 deletions

diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index a4eea9a508d..71e2065639a 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -15,28 +15,9 @@
 
 #include "internal.h"
 
-#define PREFIX			"ACPI: "
 #define _COMPONENT		ACPI_PROCESSOR_COMPONENT
 ACPI_MODULE_NAME("processor_core");
 
-static int __init set_no_mwait(const struct dmi_system_id *id)
-{
-	printk(KERN_NOTICE PREFIX "%s detected - "
-		"disabling mwait for CPU C-states\n", id->ident);
-	boot_option_idle_override = IDLE_NOMWAIT;
-	return 0;
-}
-
-static struct dmi_system_id processor_idle_dmi_table[] __initdata = {
-	{
-	set_no_mwait, "Extensa 5220", {
-	DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
-	DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
-	DMI_MATCH(DMI_PRODUCT_VERSION, "0100"),
-	DMI_MATCH(DMI_BOARD_NAME, "Columbia") }, NULL},
-	{},
-};
-
 static int map_lapic_id(struct acpi_subtable_header *entry,
 		 u32 acpi_id, int *apic_id)
 {
@@ -323,7 +304,7 @@ static struct acpi_object_list *acpi_processor_alloc_pdc(void)
  * _PDC is required for a BIOS-OS handshake for most of the newer
  * ACPI processor features.
  */
-static int
+static acpi_status
 acpi_processor_eval_pdc(acpi_handle handle, struct acpi_object_list *pdc_in)
 {
 	acpi_status status = AE_OK;
@@ -379,16 +360,43 @@ early_init_pdc(acpi_handle handle, u32 lvl, void *context, void **rv)
 	return AE_OK;
 }
 
-void __init acpi_early_processor_set_pdc(void)
+#if defined(CONFIG_X86) || defined(CONFIG_IA64)
+static int __init set_no_mwait(const struct dmi_system_id *id)
+{
+	pr_notice(PREFIX "%s detected - disabling mwait for CPU C-states\n",
+		  id->ident);
+	boot_option_idle_override = IDLE_NOMWAIT;
+	return 0;
+}
+
+static struct dmi_system_id processor_idle_dmi_table[] __initdata = {
+	{
+	set_no_mwait, "Extensa 5220", {
+	DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
+	DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+	DMI_MATCH(DMI_PRODUCT_VERSION, "0100"),
+	DMI_MATCH(DMI_BOARD_NAME, "Columbia") }, NULL},
+	{},
+};
+
+static void __init processor_dmi_check(void)
 {
 	/*
 	 * Check whether the system is DMI table. If yes, OSPM
 	 * should not use mwait for CPU-states.
 	 */
 	dmi_check_system(processor_idle_dmi_table);
+}
+#else
+static inline void processor_dmi_check(void) {}
+#endif
+
+void __init acpi_early_processor_set_pdc(void)
+{
+	processor_dmi_check();
 
 	acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT,
 			    ACPI_UINT32_MAX,
 			    early_init_pdc, NULL, NULL, NULL);
-	acpi_get_devices("ACPI0007", early_init_pdc, NULL, NULL);
+	acpi_get_devices(ACPI_PROCESSOR_DEVICE_HID, early_init_pdc, NULL, NULL);
 }