linux-kernel - [PATCH] dm writecache: fix flexible

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Message-ID: <alpine.DEB.2.22.394.2102102103560.2881@hadrien>
Date:   Wed, 10 Feb 2021 21:06:15 +0100 (CET)
From:   Julia Lawall <julia.lawall@...ia.fr>
To:     Alasdair Kergon <agk@...hat.com>,
        Mike Snitzer <snitzer@...hat.com>, dm-devel@...hat.com,
        linux-kernel@...r.kernel.org
cc:     kbuild-all@...ts.01.org, Denis Efremov <efremov@...ux.com>
Subject: [PATCH] dm writecache: fix flexible_array.cocci warnings

Zero-length and one-element arrays are deprecated, see
Documentation/process/deprecated.rst
Flexible-array members should be used instead.

Generated by: scripts/coccinelle/misc/flexible_array.cocci

CC: Denis Efremov <efremov@...ux.com>
Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: kernel test robot <lkp@...el.com>
Signed-off-by: Julia Lawall <julia.lawall@...ia.fr>
---

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   e0756cfc7d7cd08c98a53b6009c091a3f6a50be6
commit: 7b36c1398fb63f9c38cc83dc75f143d2e5995062 coccinelle: misc: add flexible_array.cocci script
:::::: branch date: 2 days ago
:::::: commit date: 4 months ago

 dm-writecache.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/md/dm-writecache.c
+++ b/drivers/md/dm-writecache.c
@@ -73,7 +73,7 @@ struct wc_memory_superblock {
 		};
 		__le64 padding[8];
 	};
-	struct wc_memory_entry entries[0];
+	struct wc_memory_entry entries[];
 };

 struct wc_entry {