From: Alex Chiang <achiang@hp.com>
Date: Mon, 22 Feb 2010 19:12:00 +0000 (-0700)
Subject: ACPI: processor: push file static MADT pointer into internal map_madt_entry()
X-Git-Tag: v2.6.34-rc2~37^2^7
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=149fe9c293f76803206648270ca24fc2604d5f01;p=platform%2Fkernel%2Flinux-exynos.git

ACPI: processor: push file static MADT pointer into internal map_madt_entry()

There's no real need for a pointer to the MADT to be global. The only
function who uses it is map_madt_entry.

This allows us to remove some more ugly #ifdefs.

Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
---

diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index ee9bce1..791ac7b 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -43,8 +43,6 @@ static struct dmi_system_id __cpuinitdata processor_idle_dmi_table[] = {
 };
 
 #ifdef CONFIG_SMP
-static struct acpi_table_madt *madt;
-
 static int map_lapic_id(struct acpi_subtable_header *entry,
 		 u32 acpi_id, int *apic_id)
 {
@@ -100,8 +98,17 @@ static int map_lsapic_id(struct acpi_subtable_header *entry,
 static int map_madt_entry(int type, u32 acpi_id)
 {
 	unsigned long madt_end, entry;
+	static struct acpi_table_madt *madt;
+	static int read_madt;
 	int apic_id = -1;
 
+	if (!read_madt) {
+		if (ACPI_FAILURE(acpi_get_table(ACPI_SIG_MADT, 0,
+					(struct acpi_table_header **)&madt)))
+			madt = NULL;
+		read_madt++;
+	}
+
 	if (!madt)
 		return apic_id;
 
@@ -335,13 +342,6 @@ early_init_pdc(acpi_handle handle, u32 lvl, void *context, void **rv)
 
 void __init acpi_early_processor_set_pdc(void)
 {
-
-#ifdef CONFIG_SMP
-	if (ACPI_FAILURE(acpi_get_table(ACPI_SIG_MADT, 0,
-				(struct acpi_table_header **)&madt)))
-		madt = NULL;
-#endif
-
 	/*
 	 * Check whether the system is DMI table. If yes, OSPM
 	 * should not use mwait for CPU-states.