Hi Hao, Thank you for the patch! Yet something to improve: [auto build test ERROR on f2e030dd7aaea5a937a2547dc980fab418fbc5e7] url: https://github.com/intel-lab-lkp/linux/commits/Hao-Xu/fast-poll-multishot-mode/20220506-150750 base: f2e030dd7aaea5a937a2547dc980fab418fbc5e7 config: mips-pic32mzda_defconfig (https://download.01.org/0day-ci/archive/20220506/202205062033.yS62xm5Z-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 5e004fb787698440a387750db7f8028e7cb14cfc) 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 mips cross compiling tool for clang build # apt-get install binutils-mips-linux-gnu # https://github.com/intel-lab-lkp/linux/commit/acb232e81643bd097278ebdc17038e6f280e7212 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Hao-Xu/fast-poll-multishot-mode/20220506-150750 git checkout acb232e81643bd097278ebdc17038e6f280e7212 # 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=mips SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> fs/io_uring.c:6067:2: error: call to undeclared function '__io_poll_clean'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] __io_poll_clean(req); ^ fs/io_uring.c:6067:2: note: did you mean '__io_fill_cqe'? fs/io_uring.c:2141:20: note: '__io_fill_cqe' declared here static inline bool __io_fill_cqe(struct io_ring_ctx *ctx, u64 user_data, ^ 1 error generated. vim +/__io_poll_clean +6067 fs/io_uring.c 6058 6059 static void io_apoll_task_func(struct io_kiocb *req, bool *locked) 6060 { 6061 int ret; 6062 6063 ret = io_poll_check_events(req, locked); 6064 if (ret > 0) 6065 return; 6066 > 6067 __io_poll_clean(req); 6068 6069 if (!ret) 6070 io_req_task_submit(req, locked); 6071 else 6072 io_req_complete_failed(req, ret); 6073 } 6074 -- 0-DAY CI Kernel Test Service https://01.org/lkp
