On Sat, 4 Jun 2022 21:55:44 +0800 kernel test robot <lkp@xxxxxxxxx> wrote: > 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@xxxxxxxxx/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@xxxxxxxxx> > > 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. Thanks, I did this: --- a/mm/memory-failure.c~mm-factor-helpers-for-memory_failure_dev_pagemap-fix +++ a/mm/memory-failure.c @@ -1714,12 +1714,21 @@ out: unlock_page(head); return res; } + #else + +static inline int mf_generic_kill_procs(unsigned long long pfn, int flags, + struct dev_pagemap *pgmap) +{ + return 0; +} + static inline int try_memory_failure_hugetlb(unsigned long pfn, int flags, int *hugetlb) { return 0; } -#endif + +#endif /* CONFIG_HUGETLB_PAGE */ static int memory_failure_dev_pagemap(unsigned long pfn, int flags, struct dev_pagemap *pgmap) _
