On Mon, Apr 21, 2014 at 4:14 PM, Tim Harvey <tharvey@xxxxxxxxxxxxx> wrote:
> If a flush is requested, make sure to clear the descriptor once we've
> processed it.
>
> This resolves a hang that will occur if all RX descriptors are full when a
> flush is requested.
>
> Signed-off-by: Tim Harvey <tharvey@xxxxxxxxxxxxx>
> ---
> drivers/net/wireless/ath/ath9k/recv.c | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
> index 6c9accd..e77a253 100644
> --- a/drivers/net/wireless/ath/ath9k/recv.c
> +++ b/drivers/net/wireless/ath/ath9k/recv.c
> @@ -1113,14 +1113,13 @@ requeue_drop_frag:
> }
> requeue:
> list_add_tail(&bf->list, &sc->rx.rxbuf);
> - if (flush)
> - continue;
>
> if (edma) {
> ath_rx_edma_buf_link(sc, qtype);
> } else {
> ath_rx_buf_relink(sc, bf);
> - ath9k_hw_rxena(ah);
> + if (!flush)
> + ath9k_hw_rxena(ah);
> }
> } while (1);
>
> --
> 1.8.3.2
>
+cc ath9k-devel@xxxxxxxxxxxxxxx
Tim
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