From: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx> Do not allow setting promiscuous mode if the interface is down. In case runtime PM is enabled, and while interface is down, the IP will be in reset mode (as for some platforms disabling/enabling the clocks will switch the IP to standby mode which will lead to losing registers' content). Commit prepares for the addition of runtime PM. Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx> --- Changes in v2: - none; this patch is new drivers/net/ethernet/renesas/ravb_main.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 1995cf7ff084..633346b6cd7c 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -2164,6 +2164,9 @@ static void ravb_set_rx_mode(struct net_device *ndev) struct ravb_private *priv = netdev_priv(ndev); unsigned long flags; + if (!netif_running(ndev)) + return; + spin_lock_irqsave(&priv->lock, flags); ravb_modify(ndev, ECMR, ECMR_PRM, ndev->flags & IFF_PROMISC ? ECMR_PRM : 0); -- 2.39.2
