[PATCH 4/4] ftgmac100: Restart MAC HW once

[Joel Stanley]

On Mon, 19 Oct 2020 at 08:57, Dylan Hung <dylan_hung at aspeedtech.com> wrote:
>
> The interrupt handler may set the flag to reset the mac in the future,
> but that flag is not cleared once the reset has occured.
>
> Fixes: 10cbd6407609 ("ftgmac100: Rework NAPI & interrupts handling")
> Signed-off-by: Dylan Hung <dylan_hung at aspeedtech.com>
> Signed-off-by: Joel Stanley <joel at jms.id.au>

Reviewed-by: Joel Stanley <joel at jms.id.au>

> ---
>  drivers/net/ethernet/faraday/ftgmac100.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c
> index 0c67fc3e27df..57736b049de3 100644
> --- a/drivers/net/ethernet/faraday/ftgmac100.c
> +++ b/drivers/net/ethernet/faraday/ftgmac100.c
> @@ -1326,6 +1326,7 @@ static int ftgmac100_poll(struct napi_struct *napi, int budget)
>          */
>         if (unlikely(priv->need_mac_restart)) {
>                 ftgmac100_start_hw(priv);
> +               priv->need_mac_restart = false;
>
>                 /* Re-enable "bad" interrupts */
>                 ftgmac100_write(FTGMAC100_INT_BAD, priv->base + FTGMAC100_OFFSET_IER);
> --
> 2.17.1
>