linux-kernel - [PATCH] mm: add printf attribute to shrinker_debugfs_name

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Date:   Fri, 6 Oct 2023 22:30:51 +0200
From:   Lucy Mielke <lucymielke@...oud.com>
To:     akpm@...ux-foundation.org, linux-mm@...ck.org
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH] mm: add printf attribute to shrinker_debugfs_name_alloc

This fixes a compiler warning when compiling an allyesconfig with W=1:

mm/internal.h:1235:9: error: function might be a candidate for ‘gnu_printf’
format attribute [-Werror=suggest-attribute=format]

Signed-off-by: Lucy Mielke <lucymielke@...oud.com>
---
 mm/internal.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/internal.h b/mm/internal.h
index 18e360fa53bc..e23f1ea55a8e 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -1229,8 +1229,8 @@ unsigned long shrink_slab(gfp_t gfp_mask, int nid, struct mem_cgroup *memcg,
 			  int priority);
 
 #ifdef CONFIG_SHRINKER_DEBUG
-static inline int shrinker_debugfs_name_alloc(struct shrinker *shrinker,
-					      const char *fmt, va_list ap)
+static inline __printf(2, 0) int shrinker_debugfs_name_alloc(
+			struct shrinker *shrinker, const char *fmt, va_list ap)
 {
 	shrinker->name = kvasprintf_const(GFP_KERNEL, fmt, ap);
 
-- 
2.42.0