linux-kernel - [PATCH] md/r5cache: remove set but not used 'offset'

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Date:   Thu, 9 Apr 2020 16:54:16 +0800
From:   Jason Yan <yanaijie@...wei.com>
To:     <song@...nel.org>, <linux-raid@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
CC:     Jason Yan <yanaijie@...wei.com>
Subject: [PATCH] md/r5cache: remove set but not used 'offset'

Fix the following gcc warning:

drivers/md/raid5-cache.c:198:11: warning: variable ‘offset’ set but not
used [-Wunused-but-set-variable]
  sector_t offset;
           ^~~~~~

Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Jason Yan <yanaijie@...wei.com>
---
 drivers/md/raid5-cache.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/md/raid5-cache.c b/drivers/md/raid5-cache.c
index 9b6da759dca2..eea14fa9e59b 100644
--- a/drivers/md/raid5-cache.c
+++ b/drivers/md/raid5-cache.c
@@ -195,9 +195,7 @@ struct r5l_log {
 static inline sector_t r5c_tree_index(struct r5conf *conf,
 				      sector_t sect)
 {
-	sector_t offset;
-
-	offset = sector_div(sect, conf->chunk_sectors);
+	sector_div(sect, conf->chunk_sectors);
 	return sect;
 }
 
-- 
2.17.2