On Sat, 4 Jun 2022 20:33:01 +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: d5f5b32dee7c09e3152cbbce45c73f0b1ea7d94c [179/180] xfs: support CoW in fsdax mode > config: mips-allyesconfig (https://download.01.org/0day-ci/archive/20220604/202206042008.WcIK2oVM-lkp@xxxxxxxxx/config) > compiler: mips-linux-gcc (GCC) 11.3.0 > 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=d5f5b32dee7c09e3152cbbce45c73f0b1ea7d94c > 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 d5f5b32dee7c09e3152cbbce45c73f0b1ea7d94c > # save the config file > mkdir build_dir && cp config build_dir/.config > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash fs/xfs/ > > If you fix the issue, kindly add following tag where applicable > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > All warnings (new ones prefixed by >>): > > >> fs/xfs/xfs_file.c:1273:1: warning: no previous prototype for 'xfs_dax_fault' [-Wmissing-prototypes] > 1273 | xfs_dax_fault( > | ^~~~~~~~~~~~~ > Works OK for me with gcc-12.1.0. I assume this will fix it. --- a/fs/xfs/xfs_file.c~xfs-support-cow-in-fsdax-mode-fix +++ a/fs/xfs/xfs_file.c @@ -1256,7 +1256,7 @@ xfs_file_llseek( } #ifdef CONFIG_FS_DAX -int +static int xfs_dax_fault( struct vm_fault *vmf, enum page_entry_size pe_size, @@ -1269,7 +1269,7 @@ xfs_dax_fault( &xfs_read_iomap_ops); } #else -int +static int xfs_dax_fault( struct vm_fault *vmf, enum page_entry_size pe_size, _
