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Date: Wed, 16 Feb 2022 13:53:06 -0600 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, ; Cc: Johannes Berg <johannes.berg@...el.com> Subject: [PATCH] uapi: wireless: Replace zero-length array with flexible-array member There is a regular need in the kernel to provide a way to declare having a dynamically sized set of trailing elements in a structure. Kernel code should always use “flexible array members”[1] for these cases. The older style of one-element or zero-length arrays should no longer be used[2]. [1] https://en.wikipedia.org/wiki/Flexible_array_member [2] https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays Link: https://github.com/KSPP/linux/issues/78 Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org> --- include/uapi/linux/wireless.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/uapi/linux/wireless.h b/include/uapi/linux/wireless.h index 08967b3f19c8..3c2ad5fae17f 100644 --- a/include/uapi/linux/wireless.h +++ b/include/uapi/linux/wireless.h @@ -835,7 +835,7 @@ struct iw_encode_ext { * individual keys */ __u16 alg; /* IW_ENCODE_ALG_* */ __u16 key_len; - __u8 key[0]; + __u8 key[]; }; /* SIOCSIWMLME data */ -- 2.27.0
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