io_uring/poll.c:480:43: sparse: sparse: incorrect type in initializer (different base types)
From: kernel test robot
Date: Sat Dec 09 2023 - 05:41:27 EST
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: f2e8a57ee9036c7d5443382b6c3c09b51a92ec7e
commit: b9ba8a4463cd78d0aee520c4bf2569820ac29929 io_uring: add support for level triggered poll
date: 1 year, 5 months ago
config: x86_64-alldefconfig (https://download.01.org/0day-ci/archive/20231209/202312091824.Oiptw6wb-lkp@xxxxxxxxx/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231209/202312091824.Oiptw6wb-lkp@xxxxxxxxx/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202312091824.Oiptw6wb-lkp@xxxxxxxxx/
sparse warnings: (new ones prefixed by >>)
io_uring/poll.c:165:38: sparse: sparse: incorrect type in assignment (different base types) @@ expected signed int [usertype] res @@ got restricted __poll_t @@
io_uring/poll.c:165:38: sparse: expected signed int [usertype] res
io_uring/poll.c:165:38: sparse: got restricted __poll_t
io_uring/poll.c:176:56: sparse: sparse: restricted __poll_t degrades to integer
io_uring/poll.c:175:66: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected restricted __poll_t [usertype] val @@ got unsigned int @@
io_uring/poll.c:175:66: sparse: expected restricted __poll_t [usertype] val
io_uring/poll.c:175:66: sparse: got unsigned int
io_uring/poll.c:175:52: sparse: sparse: incorrect type in initializer (different base types) @@ expected restricted __poll_t [usertype] mask @@ got unsigned short @@
io_uring/poll.c:175:52: sparse: expected restricted __poll_t [usertype] mask
io_uring/poll.c:175:52: sparse: got unsigned short
io_uring/poll.c:181:50: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected signed int [usertype] res @@ got restricted __poll_t [usertype] mask @@
io_uring/poll.c:181:50: sparse: expected signed int [usertype] res
io_uring/poll.c:181:50: sparse: got restricted __poll_t [usertype] mask
io_uring/poll.c:216:63: sparse: sparse: restricted __poll_t degrades to integer
io_uring/poll.c:216:57: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected restricted __poll_t [usertype] val @@ got unsigned int @@
io_uring/poll.c:216:57: sparse: expected restricted __poll_t [usertype] val
io_uring/poll.c:216:57: sparse: got unsigned int
io_uring/poll.c:334:40: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected int mask @@ got restricted __poll_t [usertype] mask @@
io_uring/poll.c:334:40: sparse: expected int mask
io_uring/poll.c:334:40: sparse: got restricted __poll_t [usertype] mask
io_uring/poll.c:430:24: sparse: sparse: incorrect type in return expression (different base types) @@ expected int @@ got restricted __poll_t [assigned] [usertype] mask @@
io_uring/poll.c:430:24: sparse: expected int
io_uring/poll.c:430:24: sparse: got restricted __poll_t [assigned] [usertype] mask
io_uring/poll.c:451:40: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected int mask @@ got restricted __poll_t [assigned] [usertype] mask @@
io_uring/poll.c:451:40: sparse: expected int mask
io_uring/poll.c:451:40: sparse: got restricted __poll_t [assigned] [usertype] mask
io_uring/poll.c:480:45: sparse: sparse: restricted __poll_t degrades to integer
>> io_uring/poll.c:480:43: sparse: sparse: incorrect type in initializer (different base types) @@ expected restricted __poll_t [usertype] mask @@ got unsigned int @@
io_uring/poll.c:480:43: sparse: expected restricted __poll_t [usertype] mask
io_uring/poll.c:480:43: sparse: got unsigned int
io_uring/poll.c:528:33: sparse: sparse: incorrect type in argument 5 (different base types) @@ expected int mask @@ got restricted __poll_t [assigned] [usertype] mask @@
io_uring/poll.c:528:33: sparse: expected int mask
io_uring/poll.c:528:33: sparse: got restricted __poll_t [assigned] [usertype] mask
io_uring/poll.c:528:50: sparse: sparse: incorrect type in argument 6 (different base types) @@ expected int events @@ got restricted __poll_t [usertype] events @@
io_uring/poll.c:528:50: sparse: expected int events
io_uring/poll.c:528:50: sparse: got restricted __poll_t [usertype] events
io_uring/poll.c:642:24: sparse: sparse: invalid assignment: |=
io_uring/poll.c:642:24: sparse: left side has type unsigned int
io_uring/poll.c:642:24: sparse: right side has type restricted __poll_t
io_uring/poll.c:644:24: sparse: sparse: invalid assignment: |=
io_uring/poll.c:644:24: sparse: left side has type unsigned int
io_uring/poll.c:644:24: sparse: right side has type restricted __poll_t
io_uring/poll.c:646:55: sparse: sparse: restricted __poll_t degrades to integer
io_uring/poll.c:645:29: sparse: sparse: restricted __poll_t degrades to integer
io_uring/poll.c:645:38: sparse: sparse: incorrect type in return expression (different base types) @@ expected restricted __poll_t @@ got unsigned int @@
io_uring/poll.c:645:38: sparse: expected restricted __poll_t
io_uring/poll.c:645:38: sparse: got unsigned int
io_uring/poll.c:741:38: sparse: sparse: invalid assignment: &=
io_uring/poll.c:741:38: sparse: left side has type restricted __poll_t
io_uring/poll.c:741:38: sparse: right side has type int
io_uring/poll.c:742:52: sparse: sparse: restricted __poll_t degrades to integer
io_uring/poll.c:742:38: sparse: sparse: invalid assignment: |=
io_uring/poll.c:742:38: sparse: left side has type restricted __poll_t
io_uring/poll.c:742:38: sparse: right side has type unsigned int
io_uring/poll.c: note: in included file:
io_uring/io_uring_types.h:92:37: sparse: sparse: array of flexible structures
vim +480 io_uring/poll.c
473
474 int io_arm_poll_handler(struct io_kiocb *req, unsigned issue_flags)
475 {
476 const struct io_op_def *def = &io_op_defs[req->opcode];
477 struct io_ring_ctx *ctx = req->ctx;
478 struct async_poll *apoll;
479 struct io_poll_table ipt;
> 480 __poll_t mask = POLLPRI | POLLERR | EPOLLET;
481 int ret;
482
483 if (!def->pollin && !def->pollout)
484 return IO_APOLL_ABORTED;
485 if (!file_can_poll(req->file))
486 return IO_APOLL_ABORTED;
487 if ((req->flags & (REQ_F_POLLED|REQ_F_PARTIAL_IO)) == REQ_F_POLLED)
488 return IO_APOLL_ABORTED;
489 if (!(req->flags & REQ_F_APOLL_MULTISHOT))
490 mask |= EPOLLONESHOT;
491
492 if (def->pollin) {
493 mask |= EPOLLIN | EPOLLRDNORM;
494
495 /* If reading from MSG_ERRQUEUE using recvmsg, ignore POLLIN */
496 if (req->flags & REQ_F_CLEAR_POLLIN)
497 mask &= ~EPOLLIN;
498 } else {
499 mask |= EPOLLOUT | EPOLLWRNORM;
500 }
501 if (def->poll_exclusive)
502 mask |= EPOLLEXCLUSIVE;
503 if (req->flags & REQ_F_POLLED) {
504 apoll = req->apoll;
505 kfree(apoll->double_poll);
506 } else if (!(issue_flags & IO_URING_F_UNLOCKED) &&
507 !list_empty(&ctx->apoll_cache)) {
508 apoll = list_first_entry(&ctx->apoll_cache, struct async_poll,
509 poll.wait.entry);
510 list_del_init(&apoll->poll.wait.entry);
511 } else {
512 apoll = kmalloc(sizeof(*apoll), GFP_ATOMIC);
513 if (unlikely(!apoll))
514 return IO_APOLL_ABORTED;
515 }
516 apoll->double_poll = NULL;
517 req->apoll = apoll;
518 req->flags |= REQ_F_POLLED;
519 ipt.pt._qproc = io_async_queue_proc;
520
521 io_kbuf_recycle(req, issue_flags);
522
523 ret = __io_arm_poll_handler(req, &apoll->poll, &ipt, mask);
524 if (ret || ipt.error)
525 return ret ? IO_APOLL_READY : IO_APOLL_ABORTED;
526
527 trace_io_uring_poll_arm(ctx, req, req->cqe.user_data, req->opcode,
528 mask, apoll->poll.events);
529 return IO_APOLL_OK;
530 }
531
--
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