[PATCH 5.10.y] dm-integrity: don't increment hash_offset twice

[Sasha Levin <sashal@kernel.org>]

From: Mikulas Patocka <mpatocka@redhat.com>

[ Upstream commit edf025f083854f80032b73a1aad69a3c90db236f ]

hash_offset is already incremented in the loop "for (i = 0; i < to_copy;
i++, ts--)". Do not increment it again.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Assisted-by: Claude:claude-opus-4.6
Fixes: 84597a44a9d8 ("dm-integrity: dm integrity: add optional discard support")
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/md/dm-integrity.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
index 227ed3b4687323..eb13b98ba0a9c5 100644
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -1377,10 +1377,6 @@ static int dm_integrity_rw_tag(struct dm_integrity_c *ic, unsigned char *tag, se
 			*metadata_offset = 0;
 		}
 
-		if (unlikely(!is_power_of_2(ic->tag_size))) {
-			hash_offset = (hash_offset + to_copy) % ic->tag_size;
-		}
-
 		total_size -= to_copy;
 	} while (unlikely(total_size));
 
-- 
2.53.0