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Message-ID: <YzIc8z+QaHvqPjLX@work> Date: Mon, 26 Sep 2022 16:43:15 -0500 From: "Gustavo A. R. Silva" <gustavoars@...nel.org> To: Coly Li <colyli@...e.de>, Kent Overstreet <kent.overstreet@...il.com> Cc: linux-bcache@...r.kernel.org, linux-kernel@...r.kernel.org, "Gustavo A. R. Silva" <gustavoars@...nel.org>, linux-hardening@...r.kernel.org Subject: [PATCH][next] bcache: Replace zero-length arrays with DECLARE_FLEX_ARRAY() helper Zero-length arrays are deprecated and we are moving towards adopting C99 flexible-array members, instead. So, replace zero-length arrays declarations in anonymous union with the new DECLARE_FLEX_ARRAY() helper macro. This helper allows for flexible-array members in unions. Link: https://github.com/KSPP/linux/issues/193 Link: https://github.com/KSPP/linux/issues/213 Link: https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org> --- drivers/md/bcache/bcache_ondisk.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/md/bcache/bcache_ondisk.h b/drivers/md/bcache/bcache_ondisk.h index 97413586195b..d086a0ce4bc2 100644 --- a/drivers/md/bcache/bcache_ondisk.h +++ b/drivers/md/bcache/bcache_ondisk.h @@ -359,8 +359,8 @@ struct jset { __u64 prio_bucket[MAX_CACHES_PER_SET]; union { - struct bkey start[0]; - __u64 d[0]; + DECLARE_FLEX_ARRAY(struct bkey, start); + DECLARE_FLEX_ARRAY(__u64, d); }; }; @@ -424,8 +424,8 @@ struct bset { __u32 keys; union { - struct bkey start[0]; - __u64 d[0]; + DECLARE_FLEX_ARRAY(struct bkey, start); + DECLARE_FLEX_ARRAY(__u64, d); }; }; -- 2.34.1
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