linux-kernel - [next] mm/gup.c:96:10: error: implicit declaration of function 'is_zero_pfn' [-Werror,-Wimplicit-function-declaration]

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Message-ID: <CA+G9fYszbxo4giipD0_sV3XHKaq2zVq97rXoyjWf18k5oYEX4Q@mail.gmail.com>
Date:   Tue, 2 Feb 2021 20:01:54 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     Linux-Next Mailing List <linux-next@...r.kernel.org>,
        linux-mm <linux-mm@...ck.org>,
        open list <linux-kernel@...r.kernel.org>,
        lkft-triage@...ts.linaro.org
Cc:     pasha.tatashin@...een.com,
        Andrew Morton <akpm@...ux-foundation.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        Michal Hocko <mhocko@...e.com>, david@...hat.com,
        osalvador@...e.de, Dan Williams <dan.j.williams@...el.com>,
        Sasha Levin <sashal@...nel.org>,
        Mike Kravetz <mike.kravetz@...cle.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...hat.com>, Jason Gunthorpe <jgg@...pe.ca>,
        Peter Zijlstra <peterz@...radead.org>,
        Mel Gorman <mgorman@...e.de>,
        Matthew Wilcox <willy@...radead.org>,
        David Rientjes <rientjes@...gle.com>,
        John Hubbard <jhubbard@...dia.com>,
        Ira Weiny <ira.weiny@...el.com>,
        James Morris <jmorris@...ei.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: [next] mm/gup.c:96:10: error: implicit declaration of function
 'is_zero_pfn' [-Werror,-Wimplicit-function-declaration]

Linux next tag 20210202 arm, riscv and sh builds with allnoconfig and
tinyconfig failed due to build errors.


make --silent --keep-going --jobs=8
O=/home/tuxbuild/.cache/tuxmake/builds/1/tmp ARCH=arm
CROSS_COMPILE=arm-linux-gnueabihf- 'HOSTCC=sccache clang' 'CC=sccache
clang' zImage
 mm/gup.c:96:10: error: implicit declaration of function 'is_zero_pfn'
[-Werror,-Wimplicit-function-declaration]
                             !is_pinnable_page(page)))
                              ^
 include/linux/mm.h:1133:3: note: expanded from macro 'is_pinnable_page'
                is_zero_pfn(page_to_pfn(page)))
                ^
 mm/gup.c:96:10: note: did you mean 'is_zero_ino'?
 include/linux/mm.h:1133:3: note: expanded from macro 'is_pinnable_page'
                is_zero_pfn(page_to_pfn(page)))
                ^
 include/linux/fs.h:3045:20: note: 'is_zero_ino' declared here
static inline bool is_zero_ino(ino_t ino)
                   ^
1 error generated.

Reported-by: Naresh Kamboju <naresh.kamboju@...aro.org>

steps to reproduce:
--------------------------
# TuxMake is a command line tool and Python library that provides
# portable and repeatable Linux kernel builds across a variety of
# architectures, toolchains, kernel configurations, and make targets.
#
# TuxMake supports the concept of runtimes.
# See https://docs.tuxmake.org/runtimes/, for that to work it requires
# that you install podman or docker on your system.
#
# To install tuxmake on your system globally:
# sudo pip3 install -U tuxmake
#
# See https://docs.tuxmake.org/ for complete documentation.

tuxmake --runtime podman --target-arch arm --toolchain clang-11
--kconfig allnoconfig

build details:
https://builds.tuxbuild.com/1nv9wkY1T8wug0sEw2kwuFKLxhK/

Regressions found on sh:

   - build/gcc-10-allnoconfig
   - build/gcc-9-tinyconfig
   - build/gcc-8-allnoconfig
   - build/gcc-10-tinyconfig
   - build/gcc-9-allnoconfig
   - build/gcc-8-tinyconfig

Regressions found on riscv:

   - build/gcc-10-allnoconfig
   - build/clang-11-tinyconfig
   - build/clang-10-allnoconfig
   - build/clang-11-allnoconfig
   - build/gcc-9-tinyconfig
   - build/gcc-8-allnoconfig
   - build/gcc-10-tinyconfig
   - build/clang-10-tinyconfig
   - build/gcc-9-allnoconfig
   - build/gcc-8-tinyconfig

Regressions found on arm:

   - build/gcc-10-allnoconfig
   - build/clang-11-tinyconfig
   - build/clang-10-allnoconfig
   - build/clang-11-allnoconfig
   - build/gcc-9-tinyconfig
   - build/gcc-8-allnoconfig
   - build/gcc-10-tinyconfig
   - build/clang-10-tinyconfig
   - build/gcc-9-allnoconfig
   - build/gcc-8-tinyconfig


- Naresh