netdev - Re: [PATCH net] bna: fix vlan tag stripping and implement its toggling

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Date:	Fri, 28 Feb 2014 10:24:47 +0100
From:	Jiri Pirko <jiri@...nulli.us>
To:	Ivan Vecera <ivecera@...hat.com>
Cc:	netdev@...r.kernel.org, davem@...emloft.net, rmody@...cade.com
Subject: Re: [PATCH net] bna: fix vlan tag stripping and implement its
 toggling

>+int bnad_set_features(struct net_device *dev, netdev_features_t features)
>+{
>+	struct bnad *bnad = netdev_priv(dev);
>+	netdev_features_t changed = features ^ dev->features;
>+
>+	if ((changed & NETIF_F_HW_VLAN_CTAG_RX) && netif_running(dev)) {
                                                   ^^^^^^^^^^^^^^^^^^
							   why?
	
>+		unsigned long flags;
>+
>+		spin_lock_irqsave(&bnad->bna_lock, flags);
>+
>+		if (features & NETIF_F_HW_VLAN_CTAG_RX)
>+			bna_rx_vlan_strip_enable(bnad->rx_info[0].rx);
>+		else
>+			bna_rx_vlan_strip_disable(bnad->rx_info[0].rx);
>+
>+		spin_unlock_irqrestore(&bnad->bna_lock, flags);
>+	}
>+
>+	return 0;
>+}
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