[PATCH] btrfs: scrub: Remove redundant initialization of increment

From: Jiapeng Chong
Date: Fri Jan 21 2022 - 06:42:55 EST


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@xxxxxxxxxxxxxxxxx>
Signed-off-by: Jiapeng Chong <jiapeng.chong@xxxxxxxxxxxxxxxxx>
---
fs/btrfs/scrub.c | 1 -
1 file changed, 1 deletion(-)

diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 2e9a322773f2..38f5666eff14 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -3209,7 +3209,6 @@ static noinline_for_stack int scrub_stripe(struct scrub_ctx *sctx,
offset = 0;
nstripes = div64_u64(dev_extent_len, map->stripe_len);
mirror_num = 1;
- increment = map->stripe_len;
if (map->type & BTRFS_BLOCK_GROUP_RAID0) {
offset = map->stripe_len * stripe_index;
increment = map->stripe_len * map->num_stripes;
--
2.20.1.7.g153144c