[PATCH v2] btrfs: Remove redundant assignment of slot and leaf

Jiapeng Chong
2022-01-05T15:08:17Z

From: chongjiapeng <jiapeng.chong@linux.alibaba.com>

slot and leaf are being initialized to path->slots[0] and
path->nodes[0], but this is never read as slot and leaf
is overwritten later on. Remove the redundant assignment.

Cleans up the following clang-analyzer warning:

fs/btrfs/tree-log.c:6125:7: warning: Value stored to 'slot' during its
initialization is never read [clang-analyzer-deadcode.DeadStores].

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: chongjiapeng <jiapeng.chong@linux.alibaba.com>
---
Changes in v2:
-Remove redundant assignment of leaf.

fs/btrfs/tree-log.c | 2 --
1 file changed, 2 deletions(-)

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 4b89ac769347..d99cda0acd95 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -6188,8 +6188,6 @@ static int log_new_ancestors(struct btrfs_trans_handle *trans,
if (ret < 0)
return ret;

- leaf = path->nodes[0];
- slot = path->slots[0];
if (slot >= btrfs_header_nritems(leaf)) {
ret = btrfs_next_leaf(root, path);
if (ret < 0)
--
2.19.1.6.gb485710b