Hi Nitesh, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on device-mapper-dm/for-next] [also build test WARNING on linus/master v6.2 next-20230220] [cannot apply to axboe-block/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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Nitesh-Shetty/block-Add-copy-offload-support-infrastructure/20230220-205057 base: https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git for-next patch link: https://lore.kernel.org/r/20230220105336.3810-5-nj.shetty%40samsung.com patch subject: [PATCH v7 4/8] fs, block: copy_file_range for def_blk_ops for direct block device. config: powerpc-allnoconfig (https://download.01.org/0day-ci/archive/20230220/202302202321.zfUe705N-lkp@xxxxxxxxx/config) compiler: powerpc-linux-gcc (GCC) 12.1.0 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://github.com/intel-lab-lkp/linux/commit/0f95ad2cb727ac6ac8406a01ff216d9237b403b7 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Nitesh-Shetty/block-Add-copy-offload-support-infrastructure/20230220-205057 git checkout 0f95ad2cb727ac6ac8406a01ff216d9237b403b7 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202302202321.zfUe705N-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> block/fops.c:614:9: warning: no previous prototype for 'blkdev_copy_file_range' [-Wmissing-prototypes] 614 | ssize_t blkdev_copy_file_range(struct file *file_in, loff_t pos_in, | ^~~~~~~~~~~~~~~~~~~~~~ vim +/blkdev_copy_file_range +614 block/fops.c 613 > 614 ssize_t blkdev_copy_file_range(struct file *file_in, loff_t pos_in, 615 struct file *file_out, loff_t pos_out, 616 size_t len, unsigned int flags) 617 { 618 struct block_device *in_bdev = I_BDEV(bdev_file_inode(file_in)); 619 struct block_device *out_bdev = I_BDEV(bdev_file_inode(file_out)); 620 int comp_len; 621 622 comp_len = blkdev_copy_offload(in_bdev, pos_in, out_bdev, pos_out, len, 623 NULL, NULL, GFP_KERNEL); 624 if (comp_len != len) 625 comp_len = generic_copy_file_range(file_in, pos_in + comp_len, 626 file_out, pos_out + comp_len, len - comp_len, flags); 627 628 return comp_len; 629 } 630 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
