linux-kernel - Re: Conflict between sparse and commit cafa0010cd51f ("Raise the minimum required gcc version to 4.6")

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Message-ID: <1324e7d6-83f8-f40f-ad34-c46e4ad3139b@c-s.fr>
Date:   Fri, 7 Sep 2018 16:33:58 +0200
From:   Christophe LEROY <christophe.leroy@....fr>
To:     Joe Perches <joe@...ches.com>, Kees Cook <keescook@...omium.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>
Cc:     linux-kernel@...r.kernel.org, linux-sparse@...r.kernel.org
Subject: Re: Conflict between sparse and commit cafa0010cd51f ("Raise the
 minimum required gcc version to 4.6")

Cc linux-sparse@...r.kernel.org

Le 07/09/2018 à 14:22, Christophe Leroy a écrit :
> Since commit cafa0010cd51f ("Raise the minimum required gcc version to 
> 4.6"), sparse check fails as follows:
> 
> [root@...6082vm linux-powerpc]# make C=2 arch/powerpc/kernel/process.o
>    CALL    scripts/checksyscalls.sh
>    CHECK   scripts/mod/empty.c
> ./include/linux/compiler-gcc.h:14:3: error: Sorry, your compiler is too 
> old - please upgrade it.
>    CHECK   arch/powerpc/kernel/process.c
> ./include/linux/compiler-gcc.h:14:3: error: Sorry, your compiler is too 
> old - please upgrade it.
> 
> 
> I have sparse version 0.5.2
> 
> What can be done to fix that ?
> 
> Christophe