linux-kernel - [PATCH][next] xfs: remove redundant initializations of pointers drop_leaf and save

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Date:   Thu, 22 Jun 2023 10:34:03 +0100
From:   Colin Ian King <colin.i.king@...il.com>
To:     "Darrick J . Wong" <djwong@...nel.org>,
        Dave Chinner <dchinner@...hat.com>, linux-xfs@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH][next] xfs: remove redundant initializations of pointers drop_leaf and save_leaf

Pointers drop_leaf and save_leaf are initialized with values that are never
read, they are being re-assigned later on just before they are used. Remove
the redundant early initializations and keep the later assignments at the
point where they are used. Cleans up two clang scan build warnings:

fs/xfs/libxfs/xfs_attr_leaf.c:2288:29: warning: Value stored to 'drop_leaf'
during its initialization is never read [deadcode.DeadStores]
fs/xfs/libxfs/xfs_attr_leaf.c:2289:29: warning: Value stored to 'save_leaf'
during its initialization is never read [deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king@...il.com>
---
 fs/xfs/libxfs/xfs_attr_leaf.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c
index beee51ad75ce..3091d40a1eb6 100644
--- a/fs/xfs/libxfs/xfs_attr_leaf.c
+++ b/fs/xfs/libxfs/xfs_attr_leaf.c
@@ -2285,8 +2285,8 @@ xfs_attr3_leaf_unbalance(
 	struct xfs_da_state_blk	*drop_blk,
 	struct xfs_da_state_blk	*save_blk)
 {
-	struct xfs_attr_leafblock *drop_leaf = drop_blk->bp->b_addr;
-	struct xfs_attr_leafblock *save_leaf = save_blk->bp->b_addr;
+	struct xfs_attr_leafblock *drop_leaf;
+	struct xfs_attr_leafblock *save_leaf;
 	struct xfs_attr3_icleaf_hdr drophdr;
 	struct xfs_attr3_icleaf_hdr savehdr;
 	struct xfs_attr_leaf_entry *entry;
-- 
2.39.2