* io_uring/io_uring.c:1667:25: sparse: sparse: restricted io_req_flags_t degrades to integer
@ 2025-12-12 1:09 kernel test robot
0 siblings, 0 replies; 3+ messages in thread
From: kernel test robot @ 2025-12-12 1:09 UTC (permalink / raw)
To: Pavel Begunkov; +Cc: oe-kbuild-all, linux-kernel, Jens Axboe
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: d358e5254674b70f34c847715ca509e46eb81e6f
commit: 19a94da447f832ee614f8f5532d31c1c70061520 io_uring: consolidate drain seq checking
date: 7 months ago
config: i386-randconfig-061-20251211 (https://download.01.org/0day-ci/archive/20251212/202512120944.2Wp9or5n-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251212/202512120944.2Wp9or5n-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/202512120944.2Wp9or5n-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
io_uring/io_uring.c: note: in included file (through include/linux/io_uring/cmd.h):
include/linux/io_uring_types.h:199:37: sparse: sparse: array of flexible structures
io_uring/io_uring.c:566:28: sparse: sparse: invalid assignment: |=
io_uring/io_uring.c:566:28: sparse: left side has type bool
io_uring/io_uring.c:566:28: sparse: right side has type restricted io_req_flags_t
>> io_uring/io_uring.c:1667:25: sparse: sparse: restricted io_req_flags_t degrades to integer
io_uring/io_uring.c:577:29: sparse: sparse: context imbalance in 'io_queue_deferred' - wrong count at exit
io_uring/io_uring.c:612:36: sparse: sparse: context imbalance in 'io_req_post_cqe' - unexpected unlock
io_uring/io_uring.c:614:17: sparse: sparse: context imbalance in '__io_submit_flush_completions' - different lock contexts for basic block
io_uring/io_uring.c:2398:29: sparse: sparse: context imbalance in 'io_cqring_min_timer_wakeup' - different lock contexts for basic block
vim +1667 io_uring/io_uring.c
1662
1663 static __cold void io_drain_req(struct io_kiocb *req)
1664 __must_hold(&ctx->uring_lock)
1665 {
1666 struct io_ring_ctx *ctx = req->ctx;
> 1667 bool drain = req->flags & IOSQE_IO_DRAIN;
1668 struct io_defer_entry *de;
1669
1670 de = kmalloc(sizeof(*de), GFP_KERNEL_ACCOUNT);
1671 if (!de) {
1672 io_req_defer_failed(req, -ENOMEM);
1673 return;
1674 }
1675
1676 io_prep_async_link(req);
1677 trace_io_uring_defer(req);
1678 de->req = req;
1679 de->seq = io_get_sequence(req);
1680
1681 scoped_guard(spinlock, &ctx->completion_lock) {
1682 list_add_tail(&de->list, &ctx->defer_list);
1683 __io_queue_deferred(ctx);
1684 if (!drain && list_empty(&ctx->defer_list))
1685 ctx->drain_active = false;
1686 }
1687 }
1688
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 3+ messages in thread
* io_uring/io_uring.c:1667:25: sparse: sparse: restricted io_req_flags_t degrades to integer
@ 2026-01-13 15:42 kernel test robot
0 siblings, 0 replies; 3+ messages in thread
From: kernel test robot @ 2026-01-13 15:42 UTC (permalink / raw)
To: Pavel Begunkov; +Cc: oe-kbuild-all, linux-kernel, Jens Axboe
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: b71e635feefc852405b14620a7fc58c4c80c0f73
commit: 19a94da447f832ee614f8f5532d31c1c70061520 io_uring: consolidate drain seq checking
date: 8 months ago
config: i386-randconfig-061-20260113 (https://download.01.org/0day-ci/archive/20260113/202601132310.hT6ZSHAG-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/20260113/202601132310.hT6ZSHAG-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/202601132310.hT6ZSHAG-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
io_uring/io_uring.c: note: in included file (through include/linux/io_uring/cmd.h):
include/linux/io_uring_types.h:199:37: sparse: sparse: array of flexible structures
io_uring/io_uring.c:566:28: sparse: sparse: invalid assignment: |=
io_uring/io_uring.c:566:28: sparse: left side has type bool
io_uring/io_uring.c:566:28: sparse: right side has type restricted io_req_flags_t
>> io_uring/io_uring.c:1667:25: sparse: sparse: restricted io_req_flags_t degrades to integer
io_uring/io_uring.c:577:29: sparse: sparse: context imbalance in 'io_queue_deferred' - wrong count at exit
io_uring/io_uring.c:612:36: sparse: sparse: context imbalance in 'io_req_post_cqe' - unexpected unlock
io_uring/io_uring.c:614:17: sparse: sparse: context imbalance in '__io_submit_flush_completions' - different lock contexts for basic block
io_uring/io_uring.c:2398:29: sparse: sparse: context imbalance in 'io_cqring_min_timer_wakeup' - different lock contexts for basic block
vim +1667 io_uring/io_uring.c
1662
1663 static __cold void io_drain_req(struct io_kiocb *req)
1664 __must_hold(&ctx->uring_lock)
1665 {
1666 struct io_ring_ctx *ctx = req->ctx;
> 1667 bool drain = req->flags & IOSQE_IO_DRAIN;
1668 struct io_defer_entry *de;
1669
1670 de = kmalloc(sizeof(*de), GFP_KERNEL_ACCOUNT);
1671 if (!de) {
1672 io_req_defer_failed(req, -ENOMEM);
1673 return;
1674 }
1675
1676 io_prep_async_link(req);
1677 trace_io_uring_defer(req);
1678 de->req = req;
1679 de->seq = io_get_sequence(req);
1680
1681 scoped_guard(spinlock, &ctx->completion_lock) {
1682 list_add_tail(&de->list, &ctx->defer_list);
1683 __io_queue_deferred(ctx);
1684 if (!drain && list_empty(&ctx->defer_list))
1685 ctx->drain_active = false;
1686 }
1687 }
1688
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 3+ messages in thread
* io_uring/io_uring.c:1667:25: sparse: sparse: restricted io_req_flags_t degrades to integer
@ 2026-02-16 12:40 kernel test robot
0 siblings, 0 replies; 3+ messages in thread
From: kernel test robot @ 2026-02-16 12:40 UTC (permalink / raw)
To: Pavel Begunkov; +Cc: oe-kbuild-all, linux-kernel, Jens Axboe
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 0f2acd3148e0ef42bdacbd477f90e8533f96b2ac
commit: 19a94da447f832ee614f8f5532d31c1c70061520 io_uring: consolidate drain seq checking
date: 9 months ago
config: alpha-randconfig-r134-20260216 (https://download.01.org/0day-ci/archive/20260216/202602162019.SvTi8Qes-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260216/202602162019.SvTi8Qes-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/202602162019.SvTi8Qes-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
io_uring/io_uring.c: note: in included file (through include/linux/io_uring/cmd.h):
include/linux/io_uring_types.h:199:37: sparse: sparse: array of flexible structures
io_uring/io_uring.c:566:28: sparse: sparse: invalid assignment: |=
io_uring/io_uring.c:566:28: sparse: left side has type bool
io_uring/io_uring.c:566:28: sparse: right side has type restricted io_req_flags_t
>> io_uring/io_uring.c:1667:25: sparse: sparse: restricted io_req_flags_t degrades to integer
io_uring/io_uring.c:577:29: sparse: sparse: context imbalance in 'io_queue_deferred' - wrong count at exit
io_uring/io_uring.c:612:36: sparse: sparse: context imbalance in 'io_req_post_cqe' - unexpected unlock
io_uring/io_uring.c:614:17: sparse: sparse: context imbalance in '__io_submit_flush_completions' - different lock contexts for basic block
vim +1667 io_uring/io_uring.c
1662
1663 static __cold void io_drain_req(struct io_kiocb *req)
1664 __must_hold(&ctx->uring_lock)
1665 {
1666 struct io_ring_ctx *ctx = req->ctx;
> 1667 bool drain = req->flags & IOSQE_IO_DRAIN;
1668 struct io_defer_entry *de;
1669
1670 de = kmalloc(sizeof(*de), GFP_KERNEL_ACCOUNT);
1671 if (!de) {
1672 io_req_defer_failed(req, -ENOMEM);
1673 return;
1674 }
1675
1676 io_prep_async_link(req);
1677 trace_io_uring_defer(req);
1678 de->req = req;
1679 de->seq = io_get_sequence(req);
1680
1681 scoped_guard(spinlock, &ctx->completion_lock) {
1682 list_add_tail(&de->list, &ctx->defer_list);
1683 __io_queue_deferred(ctx);
1684 if (!drain && list_empty(&ctx->defer_list))
1685 ctx->drain_active = false;
1686 }
1687 }
1688
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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