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Subject[akpm-mm:mm-unstable 168/180] mm/memory-failure.c:1740:7: error: call to undeclared function 'mf_generic_kill_procs'; ISO C99 and later do not support implicit function declarations
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable
head: f06e3c5104126b9a6660b58f29619b53bfa33b2b
commit: 92eb33ec5ea377357ff8087197209cbfbf40dbf9 [168/180] mm: factor helpers for memory_failure_dev_pagemap
config: x86_64-randconfig-a014 (https://download.01.org/0day-ci/archive/20220604/202206042127.sGqAcR3f-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project b364c76683f8ef241025a9556300778c07b590c2)
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=92eb33ec5ea377357ff8087197209cbfbf40dbf9
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 92eb33ec5ea377357ff8087197209cbfbf40dbf9
# 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@intel.com>

All errors (new ones prefixed by >>):

>> mm/memory-failure.c:1740:7: error: call to undeclared function 'mf_generic_kill_procs'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
rc = mf_generic_kill_procs(pfn, flags, pgmap);
^
1 error generated.


vim +/mf_generic_kill_procs +1740 mm/memory-failure.c

1723
1724 static int memory_failure_dev_pagemap(unsigned long pfn, int flags,
1725 struct dev_pagemap *pgmap)
1726 {
1727 struct page *page = pfn_to_page(pfn);
1728 int rc = -ENXIO;
1729
1730 if (flags & MF_COUNT_INCREASED)
1731 /*
1732 * Drop the extra refcount in case we come from madvise().
1733 */
1734 put_page(page);
1735
1736 /* device metadata space is not recoverable */
1737 if (!pgmap_pfn_valid(pgmap, pfn))
1738 goto out;
1739
> 1740 rc = mf_generic_kill_procs(pfn, flags, pgmap);
1741 out:
1742 /* drop pgmap ref acquired in caller */
1743 put_dev_pagemap(pgmap);
1744 action_result(pfn, MF_MSG_DAX, rc ? MF_FAILED : MF_RECOVERED);
1745 return rc;
1746 }
1747

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

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