linux-kernel - Re: mm/gup.c:1922:7: error: implicit declaration of function ‘is_valid_gup

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Message-ID: <CA+G9fYusZnYMYjKNcjf4cHwFUmV_=fXRHahsbtdsKwUzB98zEQ@mail.gmail.com>
Date:   Thu, 20 Aug 2020 15:07:07 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     Linux-Next Mailing List <linux-next@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        linux-mm <linux-mm@...ck.org>, lkft-triage@...ts.linaro.org,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     linuxarm@...wei.com, Barry Song <song.bao.hua@...ilicon.com>,
        John Hubbard <jhubbard@...dia.com>, Jan Kara <jack@...e.cz>,
        Jérôme Glisse <jglisse@...hat.com>,
        "Matthew Wilcox (Oracle)" <willy@...radead.org>,
        Al Viro <viro@...iv.linux.org.uk>,
        Christoph Hellwig <hch@...radead.org>,
        Dan Williams <dan.j.williams@...el.com>,
        Dave Chinner <david@...morbit.com>,
        Jason Gunthorpe <jgg@...pe.ca>,
        Jonathan Corbet <corbet@....net>,
        Michal Hocko <mhocko@...e.com>,
        Mike Kravetz <mike.kravetz@...cle.com>,
        Shuah Khan <shuah@...nel.org>, Vlastimil Babka <vbabka@...e.cz>
Subject: Re: mm/gup.c:1922:7: error: implicit declaration of function ‘is_valid_gup_flags’

On Thu, 20 Aug 2020 at 14:59, Naresh Kamboju <naresh.kamboju@...aro.org> wrote:
>
> arm and riscv architecture build failed on linux next 20200820 tag.

The pass with defconfig but failed with tinyconfig and allnoconfig.

> make -sk KBUILD_BUILD_USER=TuxBuild -C/linux -j16 ARCH=arm
> CROSS_COMPILE=arm-linux-gnueabihf- HOSTCC=gcc CC="sccache
> arm-linux-gnueabihf-gcc" O=build zImage
>
> 348#
> 349../mm/gup.c: In function ‘get_user_pages’:
> 350../mm/gup.c:1922:7: error: implicit declaration of function
> ‘is_valid_gup_flags’ [-Werror=implicit-function-declaration]
> 351 1922 | if (!is_valid_gup_flags(gup_flags))
> 352 | ^~~~~~~~~~~~~~~~~~
> 353cc1: some warnings being treated as errors
>
> Full build log,
> https://gitlab.com/Linaro/lkft/kernel-runs/-/jobs/695005038
> https://gitlab.com/Linaro/lkft/kernel-runs/-/jobs/695005042
>
> --
> Linaro LKFT
> https://lkft.linaro.org