Hi Hao, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on d8271bf021438f468dab3cd84fe5279b5bbcead8] url: https://github.com/intel-lab-lkp/linux/commits/Hao-Xu/support-nonblock-submission-for-splice-pipe-to-pipe/20220607-161605 base: d8271bf021438f468dab3cd84fe5279b5bbcead8 config: x86_64-defconfig (https://download.01.org/0day-ci/archive/20220608/202206082229.xoMAgqIw-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-1) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/96683840c3f19b77a536a259094d24e0cd93ebc0 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Hao-Xu/support-nonblock-submission-for-splice-pipe-to-pipe/20220607-161605 git checkout 96683840c3f19b77a536a259094d24e0cd93ebc0 # save the config file mkdir build_dir && cp config build_dir/.config make 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 warnings (new ones prefixed by >>): >> io_uring/splice.c:91:6: warning: no previous prototype for 'io_splice_support_nowait' [-Wmissing-prototypes] 91 | bool io_splice_support_nowait(struct file *in, struct file *out) | ^~~~~~~~~~~~~~~~~~~~~~~~ vim +/io_splice_support_nowait +91 io_uring/splice.c 90 > 91 bool io_splice_support_nowait(struct file *in, struct file *out) 92 { 93 if (get_pipe_info(in, true) && get_pipe_info(out, true)) 94 return true; 95 96 return false; 97 } 98 -- 0-DAY CI Kernel Test Service https://01.org/lkp
