Re: [PATCH v2 resend] sh: Use generic GCC library routines

[kernel test robot]

Hi Geert,

I love your patch! Perhaps something to improve:

[auto build test WARNING on soc/for-next]
[also build test WARNING on linus/master v5.16-rc3 next-20211203]
[cannot apply to uclinux-h8/h8300-next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Geert-Uytterhoeven/sh-Use-generic-GCC-library-routines/20211203-215311
base:   https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git for-next
config: sh-se7712_defconfig (https://download.01.org/0day-ci/archive/20211204/202112040630.oGvlSViB-lkp@xxxxxxxxx/config)
compiler: sh4-linux-gcc (GCC) 11.2.0
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/0day-ci/linux/commit/8bd73efbe5666e7df737c423c9269d039bb92f8b
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Geert-Uytterhoeven/sh-Use-generic-GCC-library-routines/20211203-215311
        git checkout 8bd73efbe5666e7df737c423c9269d039bb92f8b
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=sh SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

   In file included from arch/sh/boot/compressed/ashldi3.c:2:
>> arch/sh/boot/compressed/../../../../lib/ashldi3.c:9:19: warning: no previous prototype for '__ashldi3' [-Wmissing-prototypes]
       9 | long long notrace __ashldi3(long long u, word_type b)
         |                   ^~~~~~~~~


vim +/__ashldi3 +9 arch/sh/boot/compressed/../../../../lib/ashldi3.c

b35cd9884fa5d8 Palmer Dabbelt 2017-05-23  8  
b35cd9884fa5d8 Palmer Dabbelt 2017-05-23 @9  long long notrace __ashldi3(long long u, word_type b)

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0-DAY CI Kernel Test Service, Intel Corporation
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