linux-kernel - Re: [PATCH v5 6/8] kernel/jump_label: abstract jump

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Date:   Tue, 26 Dec 2017 10:23:15 +0000
From:   Ard Biesheuvel <ard.biesheuvel@...aro.org>
To:     kbuild test robot <lkp@...el.com>
Cc:     kbuild-all@...org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "H. Peter Anvin" <hpa@...or.com>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Arnd Bergmann <arnd@...db.de>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        Kees Cook <keescook@...omium.org>,
        Will Deacon <will.deacon@....com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Thomas Garnier <thgarnie@...gle.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        "Serge E. Hallyn" <serge@...lyn.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Russell King <linux@...linux.org.uk>,
        Paul Mackerras <paulus@...ba.org>,
        Catalin Marinas <catalin.marinas@....com>,
        "David S. Miller" <davem@...emloft.net>,
        Petr Mladek <pmladek@...e.com>, Ingo Molnar <mingo@...hat.com>,
        James Morris <james.l.morris@...cle.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Nicolas Pitre <nico@...aro.org>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Martin Schwidefsky <schwidefsky@...ibm.com>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Jessica Yu <jeyu@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-mips@...ux-mips.org,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        linux-s390@...r.kernel.org, sparclinux@...r.kernel.org,
        x86@...nel.org
Subject: Re: [PATCH v5 6/8] kernel/jump_label: abstract jump_entry member accessors

On 26 December 2017 at 10:19, kbuild test robot <lkp@...el.com> wrote:
> Hi Ard,
>
> I love your patch! Yet something to improve:
>
> [auto build test ERROR on linus/master]
> [also build test ERROR on v4.15-rc5 next-20171222]
> [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/Ard-Biesheuvel/add-support-for-relative-references-in-special-sections/20171226-164147
> config: s390-allmodconfig (attached as .config)
> compiler: s390x-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=s390
>

I guess the diffstat gives it away:

>  arch/arm/include/asm/jump_label.h     | 27 ++++++++++++++
>  arch/arm64/include/asm/jump_label.h   | 27 ++++++++++++++
>  arch/mips/include/asm/jump_label.h    | 27 ++++++++++++++
>  arch/powerpc/include/asm/jump_label.h | 27 ++++++++++++++
>  arch/s390/include/asm/jump_label.h    | 20 +++++++++++
>  arch/sparc/include/asm/jump_label.h   | 27 ++++++++++++++
>  arch/tile/include/asm/jump_label.h    | 27 ++++++++++++++
>  arch/x86/include/asm/jump_label.h     | 27 ++++++++++++++

Will fix in the next revision.