Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
From:   Xiangyang Yu <yuxiangyang4@huawei.com>
To:     <akpm@linux-foundation.org>
CC:     <linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>
Subject: [PATCH] mm/filemap: Fix warning: no previous prototype
Date:   Thu, 17 Dec 2020 10:03:11 +0800
Message-ID: <20201217020311.491799-1-yuxiangyang4@huawei.com>
MIME-Version: 1.0
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: 8bit
Precedence: bulk

Fixed the warning when building with warnings enabled (W=1),
This function is only used in filemap.c, so mark this function
with 'static'.

mm/filemap.c:830:14: warning: no previous prototype for ‘__add_to_page_cache_locked’ [-Wmissing-prototypes]

Signed-off-by: Xiangyang Yu <yuxiangyang4@huawei.com>
---
 mm/filemap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/filemap.c b/mm/filemap.c
index c178022d7893..edaba5251bec 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -827,7 +827,7 @@ int replace_page_cache_page(struct page *old, struct page *new, gfp_t gfp_mask)
 }
 EXPORT_SYMBOL_GPL(replace_page_cache_page);
 
-noinline int __add_to_page_cache_locked(struct page *page,
+static noinline int __add_to_page_cache_locked(struct page *page,
 					struct address_space *mapping,
 					pgoff_t offset, gfp_t gfp,
 					void **shadowp)
-- 
2.23.0