Hi Arseny, [FYI, it's a private test report for your RFC patch.] [auto build test WARNING on linus/master] [cannot apply to vhost/linux-next v5.11-rc6 next-20210125] [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] url: https://github.com/0day-ci/linux/commits/Arseny-Krasnov/virtio-vsock-intr... base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 61556703b610a104de324e4f061dc6cf7b218b46 config: i386-randconfig-s001-20210209 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.3-215-g0fb77bb6-dirty # https://github.com/0day-ci/linux/commit/0bfa48046cf3aa71cde18727f1ac90448... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Arseny-Krasnov/virtio-vsock-introduce-SOCK_SEQPACKET-support/20210207-232655 git checkout 0bfa48046cf3aa71cde18727f1ac90448308bfdd # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; "sparse warnings: (new ones prefixed by >>)" net/vmw_vsock/virtio_transport_common.c:430:31: sparse: sparse: incorrect type in initializer (different base types) @@ expected restricted __le32 [usertype] msg_cnt @@ got unsigned int [usertype] next_tx_msg_cnt @@ net/vmw_vsock/virtio_transport_common.c:430:31: sparse: expected restricted __le32 [usertype] msg_cnt net/vmw_vsock/virtio_transport_common.c:430:31: sparse: got unsigned int [usertype] next_tx_msg_cnt net/vmw_vsock/virtio_transport_common.c:431:28: sparse: expected restricted __le32 [usertype] msg_len net/vmw_vsock/virtio_transport_common.c:431:28: sparse: got unsigned int [usertype] len vim +431 net/vmw_vsock/virtio_transport_common.c 416 417 static int virtio_transport_seqpacket_send_ctrl(struct vsock_sock *vsk, 418 int type, 419 size_t len, 420 int flags) 421 { 422 struct virtio_vsock_sock *vvs = vsk->trans; 423 struct virtio_vsock_pkt_info info = { 424 .op = type, 425 .vsk = vsk, 426 .pkt_len = sizeof(struct virtio_vsock_seq_hdr) 427 }; 428 429 struct virtio_vsock_seq_hdr seq_hdr = { 430 .msg_cnt = vvs->next_tx_msg_cnt, 432 }; 433 434 struct kvec seq_hdr_kiov = { 435 .iov_base = (void *)&seq_hdr, 436 .iov_len = sizeof(struct virtio_vsock_seq_hdr) 437 }; 438 439 struct msghdr msg = {0}; 440 441 //XXX: do we need 'vsock_transport_send_notify_data' pointer? 442 if (vsock_wait_space(sk_vsock(vsk), 443 sizeof(struct virtio_vsock_seq_hdr), 444 flags, NULL)) 445 return -1; 446 447 iov_iter_kvec(&msg.msg_iter, WRITE, &seq_hdr_kiov, 1, sizeof(seq_hdr)); 448 449 info.msg = &msg; 450 vvs->next_tx_msg_cnt++; 451 452 return virtio_transport_send_pkt_info(vsk, &info); 453 } 454 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org