linux-kernel - [PATCH] dm table: Constify static struct blk_ksm_ll

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Date:   Wed, 26 May 2021 23:06:37 +0200
From:   Rikard Falkeborn <rikard.falkeborn@...il.com>
To:     Alasdair Kergon <agk@...hat.com>, Mike Snitzer <snitzer@...hat.com>
Cc:     dm-devel@...hat.com, linux-kernel@...r.kernel.org,
        Rikard Falkeborn <rikard.falkeborn@...il.com>
Subject: [PATCH] dm table: Constify static struct blk_ksm_ll_ops

The only usage of dm_ksm_ll_ops is to make a copy of it to the ksm_ll_ops
field in the blk_keyslot_manager struct. Make it const to allow the
compiler to put it in read-only memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@...il.com>
---
 drivers/md/dm-table.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index ee47a332b462..7e88e5e06922 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -1244,7 +1244,7 @@ static int dm_keyslot_evict(struct blk_keyslot_manager *ksm,
 	return args.err;
 }
 
-static struct blk_ksm_ll_ops dm_ksm_ll_ops = {
+static const struct blk_ksm_ll_ops dm_ksm_ll_ops = {
 	.keyslot_evict = dm_keyslot_evict,
 };
 
-- 
2.31.1