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Message-ID: <YxKO/jY1x0xTpl4r@work> Date: Sat, 3 Sep 2022 00:17:18 +0100 From: "Gustavo A. R. Silva" <gustavoars@...nel.org> To: Cc: linux-kernel@...r.kernel.org, "Gustavo A. R. Silva" <gustavoars@...nel.org>, linux-hardening@...r.kernel.org, ; Subject: [PATCH][next] mm/memremap: Replace zero-length array 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 array declaration in struct dev_pagemap with the new DECLARE_FLEX_ARRAY() helper macro. This helper allows for a flexible-array member in a union. Also, this addresses multiple warnings reported when building with Clang-15 and -Wzero-length-array. Link: https://github.com/KSPP/linux/issues/193 Link: https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org> --- include/linux/memremap.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/memremap.h b/include/linux/memremap.h index c3b4cc84877b..ad3c38840194 100644 --- a/include/linux/memremap.h +++ b/include/linux/memremap.h @@ -135,7 +135,7 @@ struct dev_pagemap { int nr_range; union { struct range range; - struct range ranges[0]; + DECLARE_FLEX_ARRAY(struct range, ranges); }; }; -- 2.34.1
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