> -----Original Message-----
> From: Hongyan Xu <[email protected]>
> Sent: Monday, September 28, 2026 3:41 PM
> To: Nguyen, Anthony L <[email protected]>; Kitszel,
> Przemyslaw <[email protected]>
> Cc: [email protected]; [email protected]; [email protected];
> [email protected]; [email protected]; [email protected];
> [email protected]; [email protected];
> [email protected]; Hongyan Xu <[email protected]>
> Subject: [PATCH net] net: e100: cancel timeout work during removal
>
> Transmit timeout and command submission paths can queue
> tx_timeout_task.
> The worker accesses the MMIO mapping and netdev private state, but
> device removal releases both without draining a pending instance.
>
> Cancel the work after unregister_netdev(), when the network stack can
> no longer publish it and after any RTNL serialization used by the
> worker has completed.
>
> Fixes: 2acdb1e05c1a ("[PATCH] e100: Execute tx_timeout task outside
> interrupt context")
> Signed-off-by: Hongyan Xu <[email protected]>
> ---
> drivers/net/ethernet/intel/e100.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/net/ethernet/intel/e100.c
> b/drivers/net/ethernet/intel/e100.c
> index 29960762e64a..710c2c30d9ed 100644
> --- a/drivers/net/ethernet/intel/e100.c
> +++ b/drivers/net/ethernet/intel/e100.c
> @@ -2988,6 +2988,7 @@ static void e100_remove(struct pci_dev *pdev)
> if (netdev) {
> struct nic *nic = netdev_priv(netdev);
> unregister_netdev(netdev);
> + cancel_work_sync(&nic->tx_timeout_task);
> e100_free(nic);
> pci_iounmap(pdev, nic->csr);
> dma_pool_destroy(nic->cbs_pool);
> --
> 2.50.1.windows.1
Reviewed-by: Aleksandr Loktionov <[email protected]>
