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Message-ID: <202601140112.a9TENdma-lkp@intel.com>
Date: Wed, 14 Jan 2026 01:48:26 +0800
From: kernel test robot <lkp@...el.com>
To: Pavel Begunkov <asml.silence@...il.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
Jens Axboe <axboe@...nel.dk>
Subject: io_uring/poll.c:703:33: sparse: sparse: incorrect type in
initializer (different base types)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: b71e635feefc852405b14620a7fc58c4c80c0f73
commit: 162151889267089bb920609830c35f9272087c3f io_uring/poll: introduce io_arm_apoll()
date: 7 months ago
config: i386-randconfig-061-20260113 (https://download.01.org/0day-ci/archive/20260114/202601140112.a9TENdma-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260114/202601140112.a9TENdma-lkp@intel.com/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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202601140112.a9TENdma-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
io_uring/poll.c:426:40: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected int mask @@ got restricted __poll_t [usertype] mask @@
io_uring/poll.c:426:40: sparse: expected int mask
io_uring/poll.c:426:40: sparse: got restricted __poll_t [usertype] mask
io_uring/poll.c:262:38: sparse: sparse: incorrect type in assignment (different base types) @@ expected signed int [usertype] res @@ got restricted __poll_t @@
io_uring/poll.c:262:38: sparse: expected signed int [usertype] res
io_uring/poll.c:262:38: sparse: got restricted __poll_t
io_uring/poll.c:276:21: sparse: sparse: restricted __poll_t degrades to integer
io_uring/poll.c:284:56: sparse: sparse: restricted __poll_t degrades to integer
io_uring/poll.c:283:66: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected restricted __poll_t [usertype] val @@ got unsigned int @@
io_uring/poll.c:283:66: sparse: expected restricted __poll_t [usertype] val
io_uring/poll.c:283:66: sparse: got unsigned int
io_uring/poll.c:283:52: sparse: sparse: incorrect type in initializer (different base types) @@ expected restricted __poll_t [usertype] mask @@ got unsigned short @@
io_uring/poll.c:283:52: sparse: expected restricted __poll_t [usertype] mask
io_uring/poll.c:283:52: sparse: got unsigned short
io_uring/poll.c:286:51: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected signed int [usertype] res @@ got restricted __poll_t [usertype] mask @@
io_uring/poll.c:286:51: sparse: expected signed int [usertype] res
io_uring/poll.c:286:51: sparse: got restricted __poll_t [usertype] mask
io_uring/poll.c:287:53: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected signed int [usertype] res @@ got restricted __poll_t [usertype] mask @@
io_uring/poll.c:287:53: sparse: expected signed int [usertype] res
io_uring/poll.c:287:53: sparse: got restricted __poll_t [usertype] mask
io_uring/poll.c:337:71: sparse: sparse: restricted __poll_t degrades to integer
io_uring/poll.c:337:65: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected restricted __poll_t [usertype] val @@ got unsigned int @@
io_uring/poll.c:337:65: sparse: expected restricted __poll_t [usertype] val
io_uring/poll.c:337:65: sparse: got unsigned int
io_uring/poll.c:614:40: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected int mask @@ got restricted __poll_t [assigned] [usertype] mask @@
io_uring/poll.c:614:40: sparse: expected int mask
io_uring/poll.c:614:40: sparse: got restricted __poll_t [assigned] [usertype] mask
io_uring/poll.c:696:38: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected int mask @@ got restricted __poll_t [assigned] [usertype] mask @@
io_uring/poll.c:696:38: sparse: expected int mask
io_uring/poll.c:696:38: sparse: got restricted __poll_t [assigned] [usertype] mask
io_uring/poll.c:696:55: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected int events @@ got restricted __poll_t [usertype] events @@
io_uring/poll.c:696:55: sparse: expected int events
io_uring/poll.c:696:55: sparse: got restricted __poll_t [usertype] events
>> io_uring/poll.c:703:33: sparse: sparse: incorrect type in initializer (different base types) @@ expected restricted __poll_t [usertype] mask @@ got int @@
io_uring/poll.c:703:33: sparse: expected restricted __poll_t [usertype] mask
io_uring/poll.c:703:33: sparse: got int
io_uring/poll.c:841:24: sparse: sparse: invalid assignment: |=
io_uring/poll.c:841:24: sparse: left side has type unsigned int
io_uring/poll.c:841:24: sparse: right side has type restricted __poll_t
io_uring/poll.c:843:24: sparse: sparse: invalid assignment: |=
io_uring/poll.c:843:24: sparse: left side has type unsigned int
io_uring/poll.c:843:24: sparse: right side has type restricted __poll_t
io_uring/poll.c:845:55: sparse: sparse: restricted __poll_t degrades to integer
io_uring/poll.c:844:29: sparse: sparse: restricted __poll_t degrades to integer
io_uring/poll.c:844:38: sparse: sparse: incorrect type in return expression (different base types) @@ expected restricted __poll_t @@ got unsigned int @@
io_uring/poll.c:844:38: sparse: expected restricted __poll_t
io_uring/poll.c:844:38: sparse: got unsigned int
io_uring/poll.c:905:40: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected signed int [usertype] res @@ got restricted __poll_t [addressable] [assigned] [usertype] result_mask @@
io_uring/poll.c:905:40: sparse: expected signed int [usertype] res
io_uring/poll.c:905:40: sparse: got restricted __poll_t [addressable] [assigned] [usertype] result_mask
io_uring/poll.c:936:38: sparse: sparse: invalid assignment: &=
io_uring/poll.c:936:38: sparse: left side has type restricted __poll_t
io_uring/poll.c:936:38: sparse: right side has type int
io_uring/poll.c:937:52: sparse: sparse: restricted __poll_t degrades to integer
io_uring/poll.c:937:38: sparse: sparse: invalid assignment: |=
io_uring/poll.c:937:38: sparse: left side has type restricted __poll_t
io_uring/poll.c:937:38: sparse: right side has type unsigned int
vim +703 io_uring/poll.c
699
700 int io_arm_poll_handler(struct io_kiocb *req, unsigned issue_flags)
701 {
702 const struct io_issue_def *def = &io_issue_defs[req->opcode];
> 703 __poll_t mask = POLLPRI | POLLERR;
704
705 if (!def->pollin && !def->pollout)
706 return IO_APOLL_ABORTED;
707 if (!io_file_can_poll(req))
708 return IO_APOLL_ABORTED;
709
710 if (def->pollin) {
711 mask |= EPOLLIN | EPOLLRDNORM;
712
713 /* If reading from MSG_ERRQUEUE using recvmsg, ignore POLLIN */
714 if (req->flags & REQ_F_CLEAR_POLLIN)
715 mask &= ~EPOLLIN;
716 } else {
717 mask |= EPOLLOUT | EPOLLWRNORM;
718 }
719 if (def->poll_exclusive)
720 mask |= EPOLLEXCLUSIVE;
721
722 return io_arm_apoll(req, issue_flags, mask);
723 }
724
--
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https://github.com/intel/lkp-tests/wiki
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