linux-kernel - [PATCH 2/5] acpi/numa: check if parsing acpi numa info disabled earlier

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Message-Id: <1359967426-32629-3-git-send-email-lig.fnst@cn.fujitsu.com>
Date:	Mon, 4 Feb 2013 16:43:43 +0800
From:	liguang <lig.fnst@...fujitsu.com>
To:	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
	x86@...nel.org
Cc:	liguang <lig.fnst@...fujitsu.com>
Subject: [PATCH 2/5] acpi/numa: check if parsing acpi numa info disabled earlier

Signed-off-by: liguang <lig.fnst@...fujitsu.com>
---
 arch/x86/mm/srat.c  |    6 ------
 drivers/acpi/numa.c |    2 ++
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index a837c95..78c67bd 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -60,8 +60,6 @@ acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
 	int pxm, node;
 	int apic_id;
 
-	if (srat_disabled())
-		return;
 	if (pa->header.length < sizeof(struct acpi_srat_x2apic_cpu_affinity)) {
 		bad_srat();
 		return;
@@ -100,8 +98,6 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
 	int pxm, node;
 	int apic_id;
 
-	if (srat_disabled())
-		return;
 	if (pa->header.length != sizeof(struct acpi_srat_cpu_affinity)) {
 		bad_srat();
 		return;
@@ -148,8 +144,6 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 	u64 start, end;
 	int node, pxm;
 
-	if (srat_disabled())
-		return -1;
 	if (ma->header.length != sizeof(struct acpi_srat_mem_affinity)) {
 		bad_srat();
 		return -1;
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index cb31298..1f51222 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -262,6 +262,8 @@ static int __init acpi_parse_srat(struct acpi_table_header *table)
 	struct acpi_table_srat *srat;
 	if (!table)
 		return -EINVAL;
+	if (srat_disabled())
+		return -EACCES;
 
 	srat = (struct acpi_table_srat *)table;
 	acpi_srat_revision = srat->header.revision;
-- 
1.7.2.5

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