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From:   Naresh Kamboju <naresh.kamboju@linaro.org>
Date:   Wed, 9 Feb 2022 20:27:56 +0530
Message-ID: <CA+G9fYv_ssRhvYi4mM1ZeGCL2meFwRsakpADp_Cz3bNDZz2zSA@mail.gmail.com>
Subject: Re: mm/munlock: mlock_page() munlock_page() batch by pagevec
To:     open list <linux-kernel@vger.kernel.org>,
        Linux-Next Mailing List <linux-next@vger.kernel.org>,
        regressions@lists.linux.dev, lkft-triage@lists.linaro.org
Cc:     Hugh Dickins <hughd@google.com>,
        Alistair Popple <apopple@nvidia.com>,
        David Hildenbrand <david@redhat.com>,
        Greg Thelen <gthelen@google.com>,
        Johannes Weiner <hannes@cmpxchg.org>,
        "Kirill A. Shutemov" <kirill@shutemov.name>,
        Matthew Wilcox <willy@infradead.org>,
        Michal Hocko <mhocko@suse.com>,
        Rik van Riel <riel@surriel.com>,
        Shakeel Butt <shakeelb@google.com>,
        Suren Baghdasaryan <surenb@google.com>,
        Vlastimil Babka <vbabka@suse.cz>, Yu Zhao <yuzhao@google.com>,
        Andrew Morton <akpm@linux-foundation.org>
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The following build regression noticed while building Linux next 20220209
arm/riscv/sh of allnoconfig and tinyconfig builds failed with gcc-10,
gcc-11 and clang-13.

clang: warning: argument unused during compilation: '-march=armv7-m'
[-Wunused-command-line-argument]
mm/swap.c:637:2: error: implicit declaration of function
'mlock_page_drain' [-Werror,-Wimplicit-function-declaration]
        mlock_page_drain(cpu);
        ^
1 error generated.
make[2]: *** [scripts/Makefile.build:289: mm/swap.o] Error 1

Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>

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