linux-kernel - Re: [PATCH v2] kconfig.h: Include compiler types to avoid missed struct attributes

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Message-ID: <CAGXu5jKx+ReiTOVnxANL=NsOTWuxzuATUYqtfi91GvFKVgR6Yg@mail.gmail.com>
Date:   Thu, 22 Feb 2018 16:03:13 -0800
From:   Kees Cook <keescook@...omium.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     kbuild-all@...org, kbuild test robot <lkp@...el.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] kconfig.h: Include compiler types to avoid missed
 struct attributes

On Thu, Feb 22, 2018 at 2:26 PM, kbuild test robot <lkp@...el.com> wrote:
> Hi Kees,
>
> I love your patch! Yet something to improve:
>
> [auto build test ERROR on linus/master]
> [also build test ERROR on v4.16-rc2 next-20180222]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
>
> url:    https://github.com/0day-ci/linux/commits/Kees-Cook/kconfig-h-Include-compiler-types-to-avoid-missed-struct-attributes/20180223-040717
> config: mips-jz4740 (attached as .config)
> compiler: mipsel-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
> reproduce:
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # save the attached .config to linux build tree
>         make.cross ARCH=mips
>
> All errors (new ones prefixed by >>):
>
>>> Error: arch/mips/boot/vmlinux.gz.its:201.1-2 syntax error
>    FATAL ERROR: Unable to parse input tree
>    /usr/bin/mkimage: Can't read arch/mips/boot/vmlinux.gz.itb.tmp: Invalid argument
>    /usr/bin/mkimage Can't add hashes to FIT blob

Ugh, the compiler_types.h commit breaks MIPS. I've reproduced this
failure; debugging now....

-Kees

-- 
Kees Cook
Pixel Security