linux-kernel - [ammarfaizi2-block:axboe/linux-block/m1-test 340/382] include/linux/soc/apple/rtkit.h:223:5: warning: no previous prototype for function 'apple_rtkit

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Message-ID: <202202161241.peuSiTA3-lkp@intel.com>
Date:   Wed, 16 Feb 2022 12:50:28 +0800
From:   kernel test robot <lkp@...el.com>
To:     Hector Martin <marcan@...can.st>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        GNU/Weeb Mailing List <gwml@...r.gnuweeb.org>,
        linux-kernel@...r.kernel.org
Subject: [ammarfaizi2-block:axboe/linux-block/m1-test 340/382]
 include/linux/soc/apple/rtkit.h:223:5: warning: no previous prototype for
 function 'apple_rtkit_poll'

tree:   https://github.com/ammarfaizi2/linux-block axboe/linux-block/m1-test
head:   5adfbb595194191bad98c47447ddbee7d3b60b8f
commit: 11c140423f34e589a6390d378267811426f82984 [340/382] soc: apple: rtkit: Add recv_message_early callback and apple_rtkit_poll
config: arm64-randconfig-r003-20220216 (https://download.01.org/0day-ci/archive/20220216/202202161241.peuSiTA3-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 0e628a783b935c70c80815db6c061ec84f884af5)
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
        # install arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://github.com/ammarfaizi2/linux-block/commit/11c140423f34e589a6390d378267811426f82984
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block axboe/linux-block/m1-test
        git checkout 11c140423f34e589a6390d378267811426f82984
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/nvme/host/

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

All warnings (new ones prefixed by >>):

   In file included from drivers/nvme/host/apple.c:32:
>> include/linux/soc/apple/rtkit.h:223:5: warning: no previous prototype for function 'apple_rtkit_poll' [-Wmissing-prototypes]
   int apple_rtkit_poll(struct apple_rtkit *rtk)
       ^
   include/linux/soc/apple/rtkit.h:223:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int apple_rtkit_poll(struct apple_rtkit *rtk)
   ^
   static 
   1 warning generated.


vim +/apple_rtkit_poll +223 include/linux/soc/apple/rtkit.h

   222	
 > 223	int apple_rtkit_poll(struct apple_rtkit *rtk)
   224	{
   225		return -ENODEV;
   226	}
   227	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org