Hi "Matthew, I love your patch! Perhaps something to improve: [auto build test WARNING on linus/master] [also build test WARNING on v5.19-rc1 next-20220607] [cannot apply to jaegeuk-f2fs/dev-test trondmy-nfs/linux-next kdave/for-next xfs-linux/for-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/intel-lab-lkp/linux/commits/Matthew-Wilcox-Oracle/Convert-aops-migratepage-to-aops-migrate_folio/20220607-044509 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git f2906aa863381afb0015a9eb7fefad885d4e5a56 config: s390-randconfig-c005-20220606 (https://download.01.org/0day-ci/archive/20220607/202206071552.6lOdScLW-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project b92436efcb7813fc481b30f2593a4907568d917a) 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 s390 cross compiling tool for clang build # apt-get install binutils-s390x-linux-gnu # https://github.com/intel-lab-lkp/linux/commit/96e64ba8b1be545885d89f44b1d8b968b22bdb4d git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Matthew-Wilcox-Oracle/Convert-aops-migratepage-to-aops-migrate_folio/20220607-044509 git checkout 96e64ba8b1be545885d89f44b1d8b968b22bdb4d # 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=s390 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> mm/migrate.c:775: warning: expecting prototype for buffer_migrate_folio_noref(). Prototype was for buffer_migrate_folio_norefs() instead vim +775 mm/migrate.c 89cb0888ca1483 Jan Kara 2018-12-28 758 96e64ba8b1be54 Matthew Wilcox (Oracle 2022-06-06 759) /** 96e64ba8b1be54 Matthew Wilcox (Oracle 2022-06-06 760) * buffer_migrate_folio_noref() - Migration function for folios with buffers. 96e64ba8b1be54 Matthew Wilcox (Oracle 2022-06-06 761) * @mapping: The address space containing @src. 96e64ba8b1be54 Matthew Wilcox (Oracle 2022-06-06 762) * @dst: The folio to migrate to. 96e64ba8b1be54 Matthew Wilcox (Oracle 2022-06-06 763) * @src: The folio to migrate from. 96e64ba8b1be54 Matthew Wilcox (Oracle 2022-06-06 764) * @mode: How to migrate the folio. 96e64ba8b1be54 Matthew Wilcox (Oracle 2022-06-06 765) * 96e64ba8b1be54 Matthew Wilcox (Oracle 2022-06-06 766) * Like buffer_migrate_folio() except that this variant is more careful 96e64ba8b1be54 Matthew Wilcox (Oracle 2022-06-06 767) * and checks that there are also no buffer head references. This function 96e64ba8b1be54 Matthew Wilcox (Oracle 2022-06-06 768) * is the right one for mappings where buffer heads are directly looked 96e64ba8b1be54 Matthew Wilcox (Oracle 2022-06-06 769) * up and referenced (such as block device mappings). 96e64ba8b1be54 Matthew Wilcox (Oracle 2022-06-06 770) * 96e64ba8b1be54 Matthew Wilcox (Oracle 2022-06-06 771) * Return: 0 on success or a negative errno on failure. 89cb0888ca1483 Jan Kara 2018-12-28 772 */ 96e64ba8b1be54 Matthew Wilcox (Oracle 2022-06-06 773) int buffer_migrate_folio_norefs(struct address_space *mapping, 96e64ba8b1be54 Matthew Wilcox (Oracle 2022-06-06 774) struct folio *dst, struct folio *src, enum migrate_mode mode) 89cb0888ca1483 Jan Kara 2018-12-28 @775 { 96e64ba8b1be54 Matthew Wilcox (Oracle 2022-06-06 776) return __buffer_migrate_folio(mapping, dst, src, mode, true); 89cb0888ca1483 Jan Kara 2018-12-28 777 } 9361401eb7619c David Howells 2006-09-30 778 #endif 1d8b85ccf1ed53 Christoph Lameter 2006-06-23 779 -- 0-DAY CI Kernel Test Service https://01.org/lkp
