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

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Date:   Thu, 20 Aug 2020 14:59:52 +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: mm/gup.c:1922:7: error: implicit declaration of function ‘is_valid_gup_flags’

arm and riscv architecture build failed on linux next 20200820 tag.

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