linux-kernel - [PATCH linux-next] ext4: Remove unused assignments

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Message-Id: <20211028024545.10540-1-luo.penghao@zte.com.cn>
Date:   Thu, 28 Oct 2021 02:45:45 +0000
From:   luo penghao <cgel.zte@...il.com>
To:     Theodore Ts'o <tytso@....edu>
Cc:     Andreas Dilger <adilger.kernel@...ger.ca>,
        linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org,
        luo penghao <luo.penghao@....com.cn>,
        Zeal Robot <zealci@....com.cn>
Subject: [PATCH linux-next] ext4: Remove unused assignments

The eh assignment in these two places is meaningless, because the
function will goto to merge, which will not use eh.

The clang_analyzer complains as follows:

fs/ext4/extents.c:1988:4 warning:
fs/ext4/extents.c:2016:4 warning:

Value stored to 'eh' is never read

Reported-by: Zeal Robot <zealci@....com.cn>
Signed-off-by: luo penghao <luo.penghao@....com.cn>
---
 fs/ext4/extents.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index b1933e3..9ed8a15 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -1986,7 +1986,6 @@ int ext4_ext_insert_extent(handle_t *handle, struct inode *inode,
 					+ ext4_ext_get_actual_len(newext));
 			if (unwritten)
 				ext4_ext_mark_unwritten(ex);
-			eh = path[depth].p_hdr;
 			nearex = ex;
 			goto merge;
 		}
@@ -2015,7 +2014,6 @@ int ext4_ext_insert_extent(handle_t *handle, struct inode *inode,
 					+ ext4_ext_get_actual_len(newext));
 			if (unwritten)
 				ext4_ext_mark_unwritten(ex);
-			eh = path[depth].p_hdr;
 			nearex = ex;
 			goto merge;
 		}
-- 
2.15.2