linux-kernel - [PATCH] nilfs2: remove redundant pointer sbufs

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Message-Id: <1640712476-15136-1-git-send-email-konishi.ryusuke@gmail.com>
Date:   Wed, 29 Dec 2021 02:27:56 +0900
From:   Ryusuke Konishi <konishi.ryusuke@...il.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     linux-nilfs <linux-nilfs@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] nilfs2: remove redundant pointer sbufs

From: Colin Ian King <colin.i.king@...il.com>

Pointer sbufs is being assigned a value but it's not being used
later on. The pointer is redundant and can be removed. Cleans up
scan-build static analysis warning:

fs/nilfs2/page.c:203:8: warning: Although the value stored to 'sbufs'
is used in the enclosing expression, the value is never actually read
from 'sbufs' [deadcode.DeadStores]
        sbh = sbufs = page_buffers(src);

Link: https://lkml.kernel.org/r/20211211180955.550380-1-colin.i.king@gmail.com
Signed-off-by: Colin Ian King <colin.i.king@...il.com>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@...il.com>
---
 fs/nilfs2/page.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/nilfs2/page.c b/fs/nilfs2/page.c
index bc3e2cd4117f..063dd16d75b5 100644
--- a/fs/nilfs2/page.c
+++ b/fs/nilfs2/page.c
@@ -195,12 +195,12 @@ void nilfs_page_bug(struct page *page)
  */
 static void nilfs_copy_page(struct page *dst, struct page *src, int copy_dirty)
 {
-	struct buffer_head *dbh, *dbufs, *sbh, *sbufs;
+	struct buffer_head *dbh, *dbufs, *sbh;
 	unsigned long mask = NILFS_BUFFER_INHERENT_BITS;
 
 	BUG_ON(PageWriteback(dst));
 
-	sbh = sbufs = page_buffers(src);
+	sbh = page_buffers(src);
 	if (!page_has_buffers(dst))
 		create_empty_buffers(dst, sbh->b_size, 0);
 
-- 
1.8.3.1