linux-kernel - [PATCH] ntfs: remove redundant initialization to pointer cb_sb

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Message-Id: <20230418153607.3125704-1-colin.i.king@gmail.com>
Date:   Tue, 18 Apr 2023 16:36:07 +0100
From:   Colin Ian King <colin.i.king@...il.com>
To:     Anton Altaparmakov <anton@...era.com>,
        linux-ntfs-dev@...ts.sourceforge.net
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] ntfs: remove redundant initialization to pointer cb_sb_start

The pointer cb_sb_start is being initialized with a value that is never
read, it is being re-assigned the same value later on when it is first
being used. The initialization is redundant and can be removed.

Cleans up clang scan build warning:
fs/ntfs/compress.c:164:6: warning: Value stored to 'cb_sb_start' during its initialization is never read [deadcode.DeadStores]
        u8 *cb_sb_start = cb;   /* Beginning of the current sb in the cb. */

Signed-off-by: Colin Ian King <colin.i.king@...il.com>
---
 fs/ntfs/compress.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ntfs/compress.c b/fs/ntfs/compress.c
index f9cb180b6f6b..761aaa0195d6 100644
--- a/fs/ntfs/compress.c
+++ b/fs/ntfs/compress.c
@@ -161,7 +161,7 @@ static int ntfs_decompress(struct page *dest_pages[], int completed_pages[],
 	 */
 	u8 *cb_end = cb_start + cb_size; /* End of cb. */
 	u8 *cb = cb_start;	/* Current position in cb. */
-	u8 *cb_sb_start = cb;	/* Beginning of the current sb in the cb. */
+	u8 *cb_sb_start;	/* Beginning of the current sb in the cb. */
 	u8 *cb_sb_end;		/* End of current sb / beginning of next sb. */
 
 	/* Variables for uncompressed data / destination. */
-- 
2.30.2