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Date: Thu, 10 Feb 2022 08:46:26 +0000 (UTC) From: Kalle Valo <kvalo@...nel.org> To: "Gustavo A. R. Silva" <gustavoars@...nel.org> Cc: Arend van Spriel <aspriel@...il.com>, Franky Lin <franky.lin@...adcom.com>, Hante Meuleman <hante.meuleman@...adcom.com>, Chi-hsien Lin <chi-hsien.lin@...ineon.com>, Wright Feng <wright.feng@...ineon.com>, Chung-hsien Hsu <chung-hsien.hsu@...ineon.com>, "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, linux-wireless@...r.kernel.org, brcm80211-dev-list.pdl@...adcom.com, SHA-cyfmac-dev-list@...ineon.com, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, "Gustavo A. R. Silva" <gustavoars@...nel.org>, linux-hardening@...r.kernel.org Subject: Re: [PATCH][next] brcmfmac: p2p: Replace one-element arrays with flexible-array members "Gustavo A. R. Silva" <gustavoars@...nel.org> wrote: > 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]. > > This helps with the ongoing efforts to globally enable -Warray-bounds > and get us closer to being able to tighten the FORTIFY_SOURCE routines > on memcpy(). > > This issue was found with the help of Coccinelle and audited and fixed, > manually. > > [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/79 > Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org> Patch applied to wireless-next.git, thanks. f3c04fffe271 brcmfmac: p2p: Replace one-element arrays with flexible-array members -- https://patchwork.kernel.org/project/linux-wireless/patch/20220204232228.GA442895@embeddedor/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
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