From: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Date: Fri, 21 Jan 2022 11:42:24 +0000 (+0800)
Subject: btrfs: scrub: remove redundant initialization of increment
X-Git-Tag: baikal/aarch64/sdk6.1~4442^2~82
X-Git-Url: https://git.baikalelectronics.ru/sdk/?a=commitdiff_plain;h=1968ab261c1efc6f2a05083148c63e53819e2d06;p=kernel.git

btrfs: scrub: remove redundant initialization of increment

increment is being initialized to map->stripe_len but this is never
read as increment is overwritten later on. Remove the redundant
initialization.

Cleans up the following clang-analyzer warning:

fs/btrfs/scrub.c:3193:6: warning: Value stored to 'increment' during its
initialization is never read [clang-analyzer-deadcode.DeadStores].

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---

diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 2e9a322773f28..11089568b2879 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -3190,7 +3190,7 @@ static noinline_for_stack int scrub_stripe(struct scrub_ctx *sctx,
 	u64 generation;
 	int mirror_num;
 	struct btrfs_key key;
-	u64 increment = map->stripe_len;
+	u64 increment;
 	u64 offset;
 	u64 extent_logical;
 	u64 extent_physical;