linux-kernel - [PATCH] mm: page_alloc: set sysctl_lowmem_reserve

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Date:   Thu, 18 May 2023 10:11:19 -0400
From:   Tom Rix <trix@...hat.com>
To:     akpm@...ux-foundation.org
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Tom Rix <trix@...hat.com>
Subject: [PATCH] mm: page_alloc: set sysctl_lowmem_reserve_ratio storage-class-specifier to static

smatch reports
mm/page_alloc.c:247:5: warning: symbol
  'sysctl_lowmem_reserve_ratio' was not declared. Should it be static?

This variable is only used in its defining file, so it should be static

Signed-off-by: Tom Rix <trix@...hat.com>
---
 mm/page_alloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 1023f41de2fb..8032fffa425a 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -244,7 +244,7 @@ static void __free_pages_ok(struct page *page, unsigned int order,
  * TBD: should special case ZONE_DMA32 machines here - in those we normally
  * don't need any ZONE_NORMAL reservation
  */
-int sysctl_lowmem_reserve_ratio[MAX_NR_ZONES] = {
+static int sysctl_lowmem_reserve_ratio[MAX_NR_ZONES] = {
 #ifdef CONFIG_ZONE_DMA
 	[ZONE_DMA] = 256,
 #endif
-- 
2.27.0