linux-kernel - Re: [kees:seccomp/tip 2/2] kernel/ptrace.c:567:3: note: in expansion of macro 'if'

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Message-ID: <20150615223056.GA18897@redhat.com>
Date:	Tue, 16 Jun 2015 00:30:56 +0200
From:	Oleg Nesterov <oleg@...hat.com>
To:	Kees Cook <keescook@...omium.org>
Cc:	Tycho Andersen <tycho.andersen@...onical.com>,
	Andy Lutomirski <luto@...capital.net>,
	Will Drewry <wad@...omium.org>,
	Roland McGrath <roland@...k.frob.com>,
	Pavel Emelyanov <xemul@...allels.com>,
	"Serge E. Hallyn" <serge.hallyn@...ntu.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [kees:seccomp/tip 2/2] kernel/ptrace.c:567:3: note: in
	expansion of macro 'if'

On 06/15, Kees Cook wrote:
>
> Looks like dead-code elimination happens after structures are
> accessed, so this needs to use the accessor.

Ah, I forgot we have the dummy "struct seccomp { }" for SECCOMP=n

> Sorry I missed this
> earlier!

Me too :/

Oleg.

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