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Date: Fri, 19 Nov 2021 10:53:05 -0800 From: Jakub Kicinski <kuba@...nel.org> To: Kees Cook <keescook@...omium.org> Cc: "Jason A. Donenfeld" <Jason@...c4.com>, "Gustavo A . R . Silva" <gustavoars@...nel.org>, "David S. Miller" <davem@...emloft.net>, Jonathan Lemon <jonathan.lemon@...il.com>, Alexander Lobakin <alobakin@...me>, Jakub Sitnicki <jakub@...udflare.com>, Marco Elver <elver@...gle.com>, Willem de Bruijn <willemb@...gle.com>, Eric Dumazet <edumazet@...gle.com>, Cong Wang <cong.wang@...edance.com>, Paolo Abeni <pabeni@...hat.com>, Talal Ahmad <talalahmad@...gle.com>, Kevin Hao <haokexin@...il.com>, Ilias Apalodimas <ilias.apalodimas@...aro.org>, Kumar Kartikeya Dwivedi <memxor@...il.com>, Vasily Averin <vvs@...tuozzo.com>, linux-kernel@...r.kernel.org, wireguard@...ts.zx2c4.com, netdev@...r.kernel.org, linux-hardening@...r.kernel.org Subject: Re: [PATCH] skbuff: Switch structure bounds to struct_group() On Fri, 19 Nov 2021 10:41:44 -0800 Jakub Kicinski wrote: > On Fri, 19 Nov 2021 10:26:19 -0800 Kees Cook wrote: > > On Thu, Nov 18, 2021 at 11:13:55PM -0800, Jakub Kicinski wrote: > > > This adds ~27k of these warnings to W=1 gcc builds: > > > > > > include/linux/skbuff.h:851:1: warning: directive in macro's argument list > > > > Hrm, I can't reproduce this, using several GCC versions and net-next. What > > compiler version[1] and base commit[2] were used here? > > gcc version 11.2.1 20210728 (Red Hat 11.2.1-1) (GCC) > > HEAD was at: 3b1abcf12894 Merge tag 'regmap-no-bus-update-bits' of git://... Ah, damn, I just realized, it's probably sparse! The build sets C=1.
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