linux-kernel - arch/arm/lib/aeabi_uldivmod.c:17:15: warning: no previous prototype for '__aeabi

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Date:   Tue, 11 Oct 2022 20:35:10 +0800
From:   kernel test robot <lkp@...el.com>
To:     Nick Desaulniers <ndesaulniers@...gle.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        0day robot <lkp@...el.com>
Subject: arch/arm/lib/aeabi_uldivmod.c:17:15: warning: no previous prototype
 for '__aeabi_uldivmod'

tree:   https://github.com/intel-lab-lkp/linux/commits/UPDATE-20221011-065542/Nick-Desaulniers/arm-lib-implement-aeabi_uldivmod-via-div64_u64_rem/20220716-231205
head:   f433fc41d1743566b471ed9c3d9313b1da280f3b
commit: 366750fd8a15e1394214c153df802bc404ba1cc0 arm: lib: implement aeabi_uldivmod via div64_u64_rem
date:   14 hours ago
config: arm-defconfig
compiler: arm-linux-gnueabi-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/366750fd8a15e1394214c153df802bc404ba1cc0
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review UPDATE-20221011-065542/Nick-Desaulniers/arm-lib-implement-aeabi_uldivmod-via-div64_u64_rem/20220716-231205
        git checkout 366750fd8a15e1394214c153df802bc404ba1cc0
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

>> arch/arm/lib/aeabi_uldivmod.c:17:15: warning: no previous prototype for '__aeabi_uldivmod' [-Wmissing-prototypes]
      17 | struct result __aeabi_uldivmod(u64 numerator, u64 denominator)
         |               ^~~~~~~~~~~~~~~~


vim +/__aeabi_uldivmod +17 arch/arm/lib/aeabi_uldivmod.c

    16	
  > 17	struct result __aeabi_uldivmod(u64 numerator, u64 denominator)

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

View attachment "config" of type "text/plain" (257497 bytes)