From: kernel test robot <lkp@intel.com>
To: cros-kernel-buildreports@googlegroups.com
Cc: oe-kbuild-all@lists.linux.dev
Subject: [android-common:android13-5.10-2026-10 1/1] io_uring/io_uring.c:1634:55: sparse: sparse: incorrect type in argument 3 (different base types)
Date: Tue, 27 Oct 2026 20:12:25 +0100 [thread overview]
Message-ID: <202610272011.JAFXZrRX-lkp@intel.com> (raw)
tree: https://android.googlesource.com/kernel/common android13-5.10-2026-10
head: a4c2f82969bc5fa7fcc21ede4b690ece7ff72335
commit: b52fdbc1b3bf870f42ba0f5a280221104b6df0ac [1/1] UPSTREAM: io_uring: pass in EPOLL_URING_WAKE for eventfd signaling and wakeups
config: arm64-randconfig-r2309-20261018 (https://download.01.org/0day-ci/archive/20261027/202610272011.JAFXZrRX-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 11.5.0
sparse: v0.6.5-rc1-1-gc4640450
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261027/202610272011.JAFXZrRX-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202610272011.JAFXZrRX-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
>> io_uring/io_uring.c:1634:55: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected unsigned int mask @@ got restricted __poll_t [usertype] @@
io_uring/io_uring.c:1634:55: sparse: expected unsigned int mask
io_uring/io_uring.c:1634:55: sparse: got restricted __poll_t [usertype]
io_uring/io_uring.c:1651:55: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected unsigned int mask @@ got restricted __poll_t [usertype] @@
io_uring/io_uring.c:1651:55: sparse: expected unsigned int mask
io_uring/io_uring.c:1651:55: sparse: got restricted __poll_t [usertype]
io_uring/io_uring.c:3153:24: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected void [noderef] __user * @@ got struct io_buffer *[assigned] kbuf @@
io_uring/io_uring.c:3153:24: sparse: expected void [noderef] __user *
io_uring/io_uring.c:3153:24: sparse: got struct io_buffer *[assigned] kbuf
io_uring/io_uring.c:4551:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct file *file @@ got struct file [noderef] __rcu * @@
io_uring/io_uring.c:4551:14: sparse: expected struct file *file
io_uring/io_uring.c:4551:14: sparse: got struct file [noderef] __rcu *
io_uring/io_uring.c:5347:37: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] result @@ got restricted __poll_t @@
io_uring/io_uring.c:5347:37: sparse: expected unsigned int [usertype] result
io_uring/io_uring.c:5347:37: sparse: got restricted __poll_t
io_uring/io_uring.c:5352:71: sparse: sparse: restricted __poll_t degrades to integer
io_uring/io_uring.c:5352:65: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected restricted __poll_t [usertype] val @@ got unsigned int @@
io_uring/io_uring.c:5352:65: sparse: expected restricted __poll_t [usertype] val
io_uring/io_uring.c:5352:65: sparse: got unsigned int
io_uring/io_uring.c:5352:52: sparse: sparse: incorrect type in initializer (different base types) @@ expected restricted __poll_t [usertype] mask @@ got unsigned short @@
io_uring/io_uring.c:5352:52: sparse: expected restricted __poll_t [usertype] mask
io_uring/io_uring.c:5352:52: sparse: got unsigned short
io_uring/io_uring.c:5356:71: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected signed int [usertype] res @@ got restricted __poll_t [usertype] mask @@
io_uring/io_uring.c:5356:71: sparse: expected signed int [usertype] res
io_uring/io_uring.c:5356:71: sparse: got restricted __poll_t [usertype] mask
io_uring/io_uring.c:5390:66: sparse: sparse: restricted __poll_t degrades to integer
io_uring/io_uring.c:5390:55: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected restricted __poll_t [usertype] val @@ got unsigned int @@
io_uring/io_uring.c:5390:55: sparse: expected restricted __poll_t [usertype] val
io_uring/io_uring.c:5390:55: sparse: got unsigned int
io_uring/io_uring.c:5493:40: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected int mask @@ got restricted __poll_t [usertype] mask @@
io_uring/io_uring.c:5493:40: sparse: expected int mask
io_uring/io_uring.c:5493:40: sparse: got restricted __poll_t [usertype] mask
io_uring/io_uring.c:5577:24: sparse: sparse: incorrect type in return expression (different base types) @@ expected int @@ got restricted __poll_t [assigned] [usertype] mask @@
io_uring/io_uring.c:5577:24: sparse: expected int
io_uring/io_uring.c:5577:24: sparse: got restricted __poll_t [assigned] [usertype] mask
io_uring/io_uring.c:5596:40: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected int mask @@ got restricted __poll_t [assigned] [usertype] mask @@
io_uring/io_uring.c:5596:40: sparse: expected int mask
io_uring/io_uring.c:5596:40: sparse: got restricted __poll_t [assigned] [usertype] mask
io_uring/io_uring.c:5630:25: sparse: sparse: restricted __poll_t degrades to integer
io_uring/io_uring.c:5630:48: sparse: sparse: incorrect type in initializer (different base types) @@ expected restricted __poll_t [usertype] mask @@ got unsigned int @@
io_uring/io_uring.c:5630:48: sparse: expected restricted __poll_t [usertype] mask
io_uring/io_uring.c:5630:48: sparse: got unsigned int
io_uring/io_uring.c:5641:22: sparse: sparse: invalid assignment: |=
io_uring/io_uring.c:5641:22: sparse: left side has type restricted __poll_t
io_uring/io_uring.c:5641:22: sparse: right side has type int
io_uring/io_uring.c:5646:30: sparse: sparse: invalid assignment: &=
io_uring/io_uring.c:5646:30: sparse: left side has type restricted __poll_t
io_uring/io_uring.c:5646:30: sparse: right side has type int
io_uring/io_uring.c:5648:22: sparse: sparse: invalid assignment: |=
io_uring/io_uring.c:5648:22: sparse: left side has type restricted __poll_t
io_uring/io_uring.c:5648:22: sparse: right side has type int
io_uring/io_uring.c:5664:33: sparse: sparse: incorrect type in argument 5 (different base types) @@ expected int mask @@ got restricted __poll_t [usertype] mask @@
io_uring/io_uring.c:5664:33: sparse: expected int mask
io_uring/io_uring.c:5664:33: sparse: got restricted __poll_t [usertype] mask
io_uring/io_uring.c:5664:50: sparse: sparse: incorrect type in argument 6 (different base types) @@ expected int events @@ got restricted __poll_t [usertype] events @@
io_uring/io_uring.c:5664:50: sparse: expected int events
io_uring/io_uring.c:5664:50: sparse: got restricted __poll_t [usertype] events
io_uring/io_uring.c:5746:24: sparse: sparse: invalid assignment: |=
io_uring/io_uring.c:5746:24: sparse: left side has type unsigned int
io_uring/io_uring.c:5746:24: sparse: right side has type restricted __poll_t
io_uring/io_uring.c:5747:65: sparse: sparse: restricted __poll_t degrades to integer
io_uring/io_uring.c:5747:29: sparse: sparse: restricted __poll_t degrades to integer
io_uring/io_uring.c:5747:38: sparse: sparse: incorrect type in return expression (different base types) @@ expected restricted __poll_t @@ got unsigned int @@
io_uring/io_uring.c:5747:38: sparse: expected restricted __poll_t
io_uring/io_uring.c:5747:38: sparse: got unsigned int
io_uring/io_uring.c:5836:43: sparse: sparse: invalid assignment: &=
io_uring/io_uring.c:5836:43: sparse: left side has type restricted __poll_t
io_uring/io_uring.c:5836:43: sparse: right side has type int
io_uring/io_uring.c:5837:62: sparse: sparse: restricted __poll_t degrades to integer
io_uring/io_uring.c:5837:43: sparse: sparse: invalid assignment: |=
io_uring/io_uring.c:5837:43: sparse: left side has type restricted __poll_t
io_uring/io_uring.c:5837:43: sparse: right side has type unsigned int
io_uring/io_uring.c: note: in included file (through include/linux/irqflags.h, include/linux/spinlock.h, include/linux/wait.h, include/linux/wait_bit.h, ...):
arch/arm64/include/asm/percpu.h:126:1: sparse: sparse: cast truncates bits from constant value (ffffffff becomes ff)
arch/arm64/include/asm/percpu.h:126:1: sparse: sparse: cast truncates bits from constant value (ffffffff becomes ffff)
arch/arm64/include/asm/percpu.h:126:1: sparse: sparse: cast truncates bits from constant value (ffffffff becomes ff)
arch/arm64/include/asm/percpu.h:126:1: sparse: sparse: cast truncates bits from constant value (ffffffff becomes ffff)
io_uring/io_uring.c:7824:9: sparse: sparse: context imbalance in 'io_sq_thread_unpark' - wrong count at exit
io_uring/io_uring.c:7835:9: sparse: sparse: context imbalance in 'io_sq_thread_park' - wrong count at exit
vim +1634 io_uring/io_uring.c
1613
1614 /*
1615 * This should only get called when at least one event has been posted.
1616 * Some applications rely on the eventfd notification count only changing
1617 * IFF a new CQE has been added to the CQ ring. There's no depedency on
1618 * 1:1 relationship between how many times this function is called (and
1619 * hence the eventfd count) and number of CQEs posted to the CQ ring.
1620 */
1621 static void io_cqring_ev_posted(struct io_ring_ctx *ctx)
1622 {
1623 /*
1624 * wake_up_all() may seem excessive, but io_wake_function() and
1625 * io_should_wake() handle the termination of the loop and only
1626 * wake as many waiters as we need to.
1627 */
1628 if (wq_has_sleeper(&ctx->cq_wait))
1629 __wake_up(&ctx->cq_wait, TASK_NORMAL, 0,
1630 poll_to_key(EPOLL_URING_WAKE | EPOLLIN));
1631 if (ctx->sq_data && waitqueue_active(&ctx->sq_data->wait))
1632 wake_up(&ctx->sq_data->wait);
1633 if (io_should_trigger_evfd(ctx))
> 1634 eventfd_signal_mask(ctx->cq_ev_fd, 1, EPOLL_URING_WAKE);
1635 if (waitqueue_active(&ctx->poll_wait))
1636 __wake_up(&ctx->poll_wait, TASK_INTERRUPTIBLE, 0,
1637 poll_to_key(EPOLL_URING_WAKE | EPOLLIN));
1638 }
1639
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2026-10-27 19:12 UTC|newest]
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