tree: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-5.12/io_uring head: c37375b314a577b3385551b646aed90faa958186 commit: 93642ef8843445f72a1e6b0c68914746c7aa5b9c [113/118] io_uring: split sqe-prep and async setup config: ia64-randconfig-s031-20210219 (attached as .config) compiler: ia64-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-229-g60c1f270-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git/com... git remote add block https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git git fetch --no-tags block for-5.12/io_uring git checkout 93642ef8843445f72a1e6b0c68914746c7aa5b9c # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=ia64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): fs/io_uring.c: In function 'io_req_prep_async': 6153 | return io_sendmsg_prep_async(req); | ^~~~~~~~~~~~~~~~~~~~~ | io_req_prep_async 6156 | return io_recvmsg_prep_async(req); | ^~~~~~~~~~~~~~~~~~~~~ | io_req_prep_async 6158 | return io_connect_prep_async(req); | ^~~~~~~~~~~~~~~~~~~~~ | io_req_prep_async cc1: some warnings being treated as errors vim +6153 fs/io_uring.c 6139 6140 static int io_req_prep_async(struct io_kiocb *req) 6141 { 6142 switch (req->opcode) { 6143 case IORING_OP_READV: 6144 case IORING_OP_READ_FIXED: 6145 case IORING_OP_READ: 6146 return io_rw_prep_async(req, READ); 6147 case IORING_OP_WRITEV: 6148 case IORING_OP_WRITE_FIXED: 6149 case IORING_OP_WRITE: 6150 return io_rw_prep_async(req, WRITE); 6151 case IORING_OP_SENDMSG: 6152 case IORING_OP_SEND: 6154 case IORING_OP_RECVMSG: 6155 case IORING_OP_RECV: 6157 case IORING_OP_CONNECT: 6159 } 6160 return 0; 6161 } 6162 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org