On Wed, Jan 24, 2018 at 10:19:17AM +0000, Matan Azrad wrote:
> In case of plugged out device, the fail-safe PMD uses failsafe_rx_burst
> function for packet receiving.
>
> This function iterates over the present sub-devices until it
> receives a traffic from one of them or they are all cannot receive
> packets.
>
> The corrupted code didn't advance the sub-device pointer when the
> sub-device was not present and caused to infinite loop.
>
> Advance the sub-device pointer also in plugged-out sub-device case.
>
> Fixes: 8052bbd9d548 ("net/failsafe: improve Rx sub-devices iteration")
>
> Signed-off-by: Matan Azrad <ma...@mellanox.com>
Acked-by: Gaetan Rivet <gaetan.ri...@6wind.com>
> ---
> drivers/net/failsafe/failsafe_rxtx.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/net/failsafe/failsafe_rxtx.c
> b/drivers/net/failsafe/failsafe_rxtx.c
> index 1654494..aeee076 100644
> --- a/drivers/net/failsafe/failsafe_rxtx.c
> +++ b/drivers/net/failsafe/failsafe_rxtx.c
> @@ -104,6 +104,7 @@
> do {
> if (fs_rx_unsafe(sdev)) {
> nb_rx = 0;
> + sdev = sdev->next;
> continue;
> }
> sub_rxq = ETH(sdev)->data->rx_queues[rxq->qid];
> --
> 1.8.3.1
>
--
Gaëtan Rivet
6WIND
