Re: [PATCH io_uring-7.2 1/1] io_uring/zcrx: fail non-qops netdevs early

On Thu, 06 Aug 2026 12:42:33 +0100, Pavel Begunkov wrote:
> netdev_get_by_index_lock() might return a netdev that doesn't have qops
> and also relies on rtnl. We're going to reject it later when opening a
> queue, but netdev_queue_get_dma_dev() warns before that. Reject non-qops
> netdevs earlier for now.
> 
> RTNL: assertion failed at ./include/net/netdev_lock.h (72)
> WARNING: ./include/net/netdev_lock.h:72 at netdev_assert_locked_ops_compat
>     include/net/netdev_lock.h:72 [inline]
> WARNING: ./include/net/netdev_lock.h:72 at netdev_queue_get_dma_dev+0x52e/0x660
>     net/core/netdev_queues.c:43,
> RIP: 0010:netdev_assert_locked_ops_compat include/net/netdev_lock.h:72 [inline]
> RIP: 0010:netdev_queue_get_dma_dev+0x53a/0x660 net/core/netdev_queues.c:43
> Call Trace:
>  <TASK>
>  zcrx_register_netdev io_uring/zcrx.c:831 [inline]
>  io_register_zcrx+0xe94/0x1d30 io_uring/zcrx.c:983
>  __io_uring_register io_uring/register.c:942 [inline]
>  __do_sys_io_uring_register+0x1193/0x1bc0 io_uring/register.c:1040
>  do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
>  do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94
>  entry_SYSCALL_64_after_hwframe+0x77/0x7f
> 
> [...]

Applied, thanks!

[1/1] io_uring/zcrx: fail non-qops netdevs early
      commit: cf7aa48151deb629022a8b0c61c139dbfa579933

Best regards,
-- 
Jens Axboe