linux-kernel - [akpm-mm:mm-unstable 137/269] mm/memory-failure.c:1728:19: error: redefinition of 'mf_generic_kill

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Date:   Tue, 28 Jun 2022 15:30:34 +0800
From:   kernel test robot <lkp@...el.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org,
        Linux Memory Management List <linux-mm@...ck.org>,
        Shiyang Ruan <ruansy.fnst@...itsu.com>
Subject: [akpm-mm:mm-unstable 137/269] mm/memory-failure.c:1728:19: error:
 redefinition of 'mf_generic_kill_procs'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable
head:   e75a11c67c2bbfefe57713b8bd62e488a9196baf
commit: 4184e8d7d056b7943348dabb99a37ca9ba51fb8d [137/269] mm-factor-helpers-for-memory_failure_dev_pagemap-fix
config: x86_64-randconfig-a002-20220627 (https://download.01.org/0day-ci/archive/20220628/202206281524.6A02wFc0-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project df18167ac56d05f2ab55f9d874aee7ab6d5bc9a2)
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://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git/commit/?id=4184e8d7d056b7943348dabb99a37ca9ba51fb8d
        git remote add akpm-mm https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git
        git fetch --no-tags akpm-mm mm-unstable
        git checkout 4184e8d7d056b7943348dabb99a37ca9ba51fb8d
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

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

All error/warnings (new ones prefixed by >>):

>> mm/memory-failure.c:1728:8: warning: attribute declaration must precede definition [-Wignored-attributes]
   static inline int mf_generic_kill_procs(unsigned long long pfn, int flags,
          ^
   include/linux/compiler_types.h:155:23: note: expanded from macro 'inline'
   #define inline inline __gnu_inline __inline_maybe_unused notrace
                         ^
   include/linux/compiler_attributes.h:173:56: note: expanded from macro '__gnu_inline'
   #define __gnu_inline                    __attribute__((__gnu_inline__))
                                                          ^
   mm/memory-failure.c:1526:12: note: previous definition is here
   static int mf_generic_kill_procs(unsigned long long pfn, int flags,
              ^
>> mm/memory-failure.c:1728:8: warning: attribute declaration must precede definition [-Wignored-attributes]
   static inline int mf_generic_kill_procs(unsigned long long pfn, int flags,
          ^
   include/linux/compiler_types.h:155:58: note: expanded from macro 'inline'
   #define inline inline __gnu_inline __inline_maybe_unused notrace
                                                            ^
   arch/x86/include/asm/linkage.h:9:32: note: expanded from macro 'notrace'
   #define notrace __attribute__((no_instrument_function))
                                  ^
   mm/memory-failure.c:1526:12: note: previous definition is here
   static int mf_generic_kill_procs(unsigned long long pfn, int flags,
              ^
>> mm/memory-failure.c:1728:19: error: redefinition of 'mf_generic_kill_procs'
   static inline int mf_generic_kill_procs(unsigned long long pfn, int flags,
                     ^
   mm/memory-failure.c:1526:12: note: previous definition is here
   static int mf_generic_kill_procs(unsigned long long pfn, int flags,
              ^
   2 warnings and 1 error generated.


vim +/mf_generic_kill_procs +1728 mm/memory-failure.c

  1727	
> 1728	static inline int mf_generic_kill_procs(unsigned long long pfn, int flags,
  1729						struct dev_pagemap *pgmap)
  1730	{
  1731		return 0;
  1732	}
  1733	

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