tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 368847b165bbfbdcf0bd4c96b167893dcdb13aba commit: ca8c0786e01b744c990fa8cd8e9d53a861a44daa [2205/2463] io_uring: dump sqe contents if issue fails config: i386-randconfig-s002-20210916 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.4-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commi... git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout ca8c0786e01b744c990fa8cd8e9d53a861a44daa # 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 >>) fs/io_uring.c: note: in included file (through include/trace/trace_events.h, include/trace/define_trace.h, include/trace/events/io_uring.h): include/trace/events/io_uring.h:509:1: sparse: expected unsigned int [usertype] op_flags include/trace/events/io_uring.h:509:1: sparse: got restricted __kernel_rwf_t const [usertype] rw_flags fs/io_uring.c: note: in included file (through include/trace/perf.h, include/trace/define_trace.h, include/trace/events/io_uring.h): include/trace/events/io_uring.h:509:1: sparse: expected unsigned int [usertype] op_flags include/trace/events/io_uring.h:509:1: sparse: got restricted __kernel_rwf_t const [usertype] rw_flags fs/io_uring.c:3101:24: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected void [noderef] __user * @@ got struct io_buffer *[assigned] kbuf @@ fs/io_uring.c:3101:24: sparse: expected void [noderef] __user * fs/io_uring.c:3101:24: sparse: got struct io_buffer *[assigned] kbuf fs/io_uring.c:4620:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct file *file @@ got struct file [noderef] __rcu * @@ fs/io_uring.c:4620:14: sparse: expected struct file *file fs/io_uring.c:4620:14: sparse: got struct file [noderef] __rcu * fs/io_uring.c:5250:72: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected int mask @@ got restricted __poll_t [usertype] mask @@ fs/io_uring.c:5250:72: sparse: expected int mask fs/io_uring.c:5250:72: sparse: got restricted __poll_t [usertype] mask fs/io_uring.c:5254:21: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] result @@ got restricted __poll_t [usertype] mask @@ fs/io_uring.c:5254:21: sparse: expected unsigned int [usertype] result fs/io_uring.c:5254:21: sparse: got restricted __poll_t [usertype] mask fs/io_uring.c:5279:29: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] result @@ got restricted __poll_t @@ fs/io_uring.c:5279:29: sparse: expected unsigned int [usertype] result fs/io_uring.c:5279:29: sparse: got restricted __poll_t fs/io_uring.c:5370:51: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected restricted __poll_t [usertype] mask @@ got unsigned int [usertype] result @@ fs/io_uring.c:5370:51: sparse: expected restricted __poll_t [usertype] mask fs/io_uring.c:5370:51: sparse: got unsigned int [usertype] result fs/io_uring.c:5526:41: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected int mask @@ got restricted __poll_t [usertype] @@ fs/io_uring.c:5526:41: sparse: expected int mask fs/io_uring.c:5526:41: sparse: got restricted __poll_t [usertype] fs/io_uring.c:5598:30: sparse: sparse: restricted __poll_t degrades to integer fs/io_uring.c:5598:53: sparse: sparse: incorrect type in initializer (different base types) @@ expected restricted __poll_t [usertype] mask @@ got unsigned int @@ fs/io_uring.c:5598:53: sparse: expected restricted __poll_t [usertype] mask fs/io_uring.c:5598:53: sparse: got unsigned int fs/io_uring.c:5610:22: sparse: sparse: invalid assignment: |= fs/io_uring.c:5610:22: sparse: left side has type restricted __poll_t fs/io_uring.c:5610:22: sparse: right side has type int fs/io_uring.c:5615:30: sparse: sparse: invalid assignment: &= fs/io_uring.c:5615:30: sparse: left side has type restricted __poll_t fs/io_uring.c:5615:30: sparse: right side has type int fs/io_uring.c:5618:22: sparse: sparse: invalid assignment: |= fs/io_uring.c:5618:22: sparse: left side has type restricted __poll_t fs/io_uring.c:5618:22: sparse: right side has type int fs/io_uring.c:5641:33: sparse: sparse: incorrect type in argument 5 (different base types) @@ expected int mask @@ got restricted __poll_t [usertype] mask @@ fs/io_uring.c:5641:33: sparse: expected int mask fs/io_uring.c:5641:33: sparse: got restricted __poll_t [usertype] mask fs/io_uring.c:5641:50: sparse: sparse: incorrect type in argument 6 (different base types) @@ expected int events @@ got restricted __poll_t [usertype] events @@ fs/io_uring.c:5641:50: sparse: expected int events fs/io_uring.c:5641:50: sparse: got restricted __poll_t [usertype] events fs/io_uring.c:5753:24: sparse: sparse: invalid assignment: |= fs/io_uring.c:5753:24: sparse: left side has type unsigned int fs/io_uring.c:5753:24: sparse: right side has type restricted __poll_t fs/io_uring.c:5754:65: sparse: sparse: restricted __poll_t degrades to integer fs/io_uring.c:5754:29: sparse: sparse: restricted __poll_t degrades to integer fs/io_uring.c:5754:38: sparse: sparse: incorrect type in return expression (different base types) @@ expected restricted __poll_t @@ got unsigned int @@ fs/io_uring.c:5754:38: sparse: expected restricted __poll_t fs/io_uring.c:5754:38: sparse: got unsigned int fs/io_uring.c:5892:35: sparse: sparse: invalid assignment: &= fs/io_uring.c:5892:35: sparse: left side has type restricted __poll_t fs/io_uring.c:5892:35: sparse: right side has type int fs/io_uring.c:5893:54: sparse: sparse: restricted __poll_t degrades to integer fs/io_uring.c:5893:35: sparse: sparse: invalid assignment: |= fs/io_uring.c:5893:35: sparse: left side has type restricted __poll_t fs/io_uring.c:5893:35: sparse: right side has type unsigned int fs/io_uring.c:7887:9: sparse: sparse: context imbalance in 'io_sq_thread_unpark' - wrong count at exit fs/io_uring.c:7898:9: sparse: sparse: context imbalance in 'io_sq_thread_park' - wrong count at exit vim +509 include/trace/events/io_uring.h 500 501 /* 502 * io_uring_req_failed - called when an sqe is errored dring submission 503 * 504 * @sqe: pointer to the io_uring_sqe that failed 505 * @error: error it failed with 506 * 507 * Allows easier diagnosing of malformed requests in production systems. 508 */ 510 511 TP_PROTO(const struct io_uring_sqe *sqe, int error), 512 513 TP_ARGS(sqe, error), 514 515 TP_STRUCT__entry ( 516 __field( u8, opcode ) 517 __field( u8, flags ) 518 __field( u8, ioprio ) 519 __field( u64, off ) 520 __field( u64, addr ) 521 __field( u32, len ) 522 __field( u32, op_flags ) 523 __field( u64, user_data ) 524 __field( u16, buf_index ) 525 __field( u16, personality ) 526 __field( u32, file_index ) 527 __field( u64, pad1 ) 528 __field( u64, pad2 ) 529 __field( int, error ) 530 ), 531 532 TP_fast_assign( 533 __entry->opcode = sqe->opcode; 534 __entry->flags = sqe->flags; 535 __entry->ioprio = sqe->ioprio; 536 __entry->off = sqe->off; 537 __entry->addr = sqe->addr; 538 __entry->len = sqe->len; 539 __entry->op_flags = sqe->rw_flags; 540 __entry->user_data = sqe->user_data; 541 __entry->buf_index = sqe->buf_index; 542 __entry->personality = sqe->personality; 543 __entry->file_index = sqe->file_index; 544 __entry->pad1 = sqe->__pad2[0]; 545 __entry->pad2 = sqe->__pad2[1]; 546 __entry->error = error; 547 ), 548 549 TP_printk("op %d, flags=0x%x, prio=%d, off=%llu, addr=%llu, " 550 "len=%u, rw_flags=0x%x, user_data=0x%llx, buf_index=%d, " 551 "personality=%d, file_index=%d, pad=0x%llx/%llx, error=%d", 552 __entry->opcode, __entry->flags, __entry->ioprio, 553 (unsigned long long)__entry->off, 554 (unsigned long long) __entry->addr, __entry->len, 555 __entry->op_flags, (unsigned long long) __entry->user_data, 556 __entry->buf_index, __entry->personality, __entry->file_index, 557 (unsigned long long) __entry->pad1, 558 (unsigned long long) __entry->pad2, __entry->error) 559 ); 560 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org