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 b80b60ed49274d2742022bdd885d0a066f6f7f50..94b5da468a7d719e5144d33b06bcc7619c0fbcc9 100644 (file)
--- 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);