linux-kernel - [PATCH] dm: make static read-only array table const

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Message-Id: <20220123224740.6875-1-colin.i.king@gmail.com>
Date:   Sun, 23 Jan 2022 22:47:40 +0000
From:   Colin Ian King <colin.i.king@...il.com>
To:     Alasdair Kergon <agk@...hat.com>,
        Mike Snitzer <snitzer@...hat.com>, dm-devel@...hat.com
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] dm: make static read-only array table const

The static array table as read-only so it make sense to make
it const. Add in the int type to clean up checkpatch warning.

Signed-off-by: Colin Ian King <colin.i.king@...il.com>
---
 drivers/md/dm-cache-policy-smq.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/md/dm-cache-policy-smq.c b/drivers/md/dm-cache-policy-smq.c
index b61aac00ff40..19eac5d980a8 100644
--- a/drivers/md/dm-cache-policy-smq.c
+++ b/drivers/md/dm-cache-policy-smq.c
@@ -1026,7 +1026,9 @@ static unsigned default_promote_level(struct smq_policy *mq)
 	 * This scheme reminds me of a graph of entropy vs probability of a
 	 * binary variable.
 	 */
-	static unsigned table[] = {1, 1, 1, 2, 4, 6, 7, 8, 7, 6, 4, 4, 3, 3, 2, 2, 1};
+	static const unsigned int table[] = {
+		1, 1, 1, 2, 4, 6, 7, 8, 7, 6, 4, 4, 3, 3, 2, 2, 1
+	};
 
 	unsigned hits = mq->cache_stats.hits;
 	unsigned misses = mq->cache_stats.misses;
-- 
2.33.1