linux-kernel - [PATCH 3/4] x86/srat: use NUMA_NO

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Message-ID: <521FF57A.8080702@huawei.com>
Date:	Fri, 30 Aug 2013 09:29:30 +0800
From:	Jianguo Wu <wujianguo@...wei.com>
To:	Andrew Morton <akpm@...ux-foundation.org>, <tglx@...utronix.de>
CC:	<x86@...nel.org>, <linux-kernel@...r.kernel.org>,
	<linux-mm@...ck.org>, David Rientjes <rientjes@...gle.com>,
	<mingo@...hat.com>
Subject: [PATCH 3/4] x86/srat: use NUMA_NO_NODE

setup_node() return NUMA_NO_NODE or valid node id(>=0), So use more appropriate
"if (node == NUMA_NO_NODE)" instead of "if (node < 0)"

Signed-off-by: Jianguo Wu <wujianguo@...wei.com>
---
 arch/x86/mm/srat.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index cdd0da9..97fea4e 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -76,7 +76,7 @@ acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
 		return;
 	}
 	node = setup_node(pxm);
-	if (node < 0) {
+	if (node == NUMA_NO_NODE) {
 		printk(KERN_ERR "SRAT: Too many proximity domains %x\n", pxm);
 		bad_srat();
 		return;
@@ -112,7 +112,7 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
 	if (acpi_srat_revision >= 2)
 		pxm |= *((unsigned int*)pa->proximity_domain_hi) << 8;
 	node = setup_node(pxm);
-	if (node < 0) {
+	if (node == NUMA_NO_NODE) {
 		printk(KERN_ERR "SRAT: Too many proximity domains %x\n", pxm);
 		bad_srat();
 		return;
@@ -164,7 +164,7 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 		pxm &= 0xff;
 
 	node = setup_node(pxm);
-	if (node < 0) {
+	if (node == NUMA_NO_NODE) {
 		printk(KERN_ERR "SRAT: Too many proximity domains.\n");
 		goto out_err_bad_srat;
 	}
-- 
1.7.1


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