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From:   Naresh Kamboju <naresh.kamboju@linaro.org>
Date:   Fri, 25 Feb 2022 12:39:37 +0530
Message-ID: <CA+G9fYtEx=k9TM7c7EihbO3U0qxZLbKX26NWJ1L=jjEOuy7cHQ@mail.gmail.com>
Subject: [next] mips-mt.c:233:19: error: conflicting types for 'mt_init'
To:     linux-mips@vger.kernel.org,
        open list <linux-kernel@vger.kernel.org>,
        Linux-Next Mailing List <linux-next@vger.kernel.org>
Cc:     Tiezhu Yang <yangtiezhu@loongson.cn>,
        Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
        Kees Cook <keescook@chromium.org>,
        Juxin Gao <gaojuxin@loongson.cn>,
        Xuefeng Li <lixuefeng@loongson.cn>,
        Stephen Rothwell <sfr@canb.auug.org.au>,
        lkft-triage@lists.linaro.org
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[Please ignore this email if it is already reported]

Linux next-20220224 arch mips build errors / warnings noticed [1].

Build configs:
  -  mips-gcc-8-malta_defconfig
  -  mips-gcc-10-malta_defconfig
  -  mips-gcc-8-defconfig
  -  mips-gcc-10-defconfig

metadata:
    git_repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next
    git_sha: 44948bd49d878dad6c9707e34f4a06df73c3a800
    git_short_log: 44948bd49d87 (\Add linux-next specific files for 20220224\)
    kconfig: defconfig
    target_arch: mips
    toolchain: gcc-10


Build errors / warnings:

arch/mips/kernel/mips-mt.c:233:19: error: conflicting types for 'mt_init'
  233 | static int __init mt_init(void)
      |                   ^~~~~~~
In file included from include/linux/mm_types.h:12,
                 from include/linux/mmzone.h:21,
                 from include/linux/gfp.h:6,
                 from include/linux/radix-tree.h:12,
                 from include/linux/idr.h:15,
                 from include/linux/kernfs.h:12,
                 from include/linux/sysfs.h:16,
                 from include/linux/kobject.h:20,
                 from include/linux/energy_model.h:7,
                 from include/linux/device.h:16,
                 from arch/mips/kernel/mips-mt.c:7:
include/linux/maple_tree.h:589:20: note: previous definition of
'mt_init' was here
  589 | static inline void mt_init(struct maple_tree *mt)
      |                    ^~~~~~~
make[3]: *** [scripts/Makefile.build:288: arch/mips/kernel/mips-mt.o] Error 1

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

Steps to reproduce:
------------------
# To install tuxmake on your system globally:
# sudo pip3 install -U tuxmake

tuxmake --runtime podman --target-arch mips --toolchain gcc-10
--kconfig defconfig

--
Linaro LKFT
https://lkft.linaro.org

[1] https://builds.tuxbuild.com/25aFF2X7uoyebURaYzNHW9FVEmN/