From: Thorsten Blum <thorsten.blum@linux.dev>
Date: Mon, 26 Jan 2026 17:45:15 +0000 (+0100)
Subject: mm/cma: replace snprintf with strscpy in cma_new_area
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ad789a85b1633ea84ad8ccf625588d6416877e69;p=thirdparty%2Fkernel%2Fstable.git

mm/cma: replace snprintf with strscpy in cma_new_area

Replace snprintf("%s", ...) with the faster and more direct strscpy().

Link: https://lkml.kernel.org/r/20260126174516.236968-1-thorsten.blum@linux.dev
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: SeongJae Park <sj@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/mm/cma.c b/mm/cma.c
index b80b60ed4927..94b5da468a7d 100644
--- a/mm/cma.c
+++ b/mm/cma.c
@@ -22,6 +22,7 @@
 #include <linux/mm.h>
 #include <linux/sizes.h>
 #include <linux/slab.h>
+#include <linux/string.h>
 #include <linux/string_choices.h>
 #include <linux/log2.h>
 #include <linux/cma.h>
@@ -233,7 +234,7 @@ static int __init cma_new_area(const char *name, phys_addr_t size,
 	cma_area_count++;
 
 	if (name)
-		snprintf(cma->name, CMA_MAX_NAME, "%s", name);
+		strscpy(cma->name, name);
 	else
 		snprintf(cma->name, CMA_MAX_NAME,  "cma%d\n", cma_area_count);