From a348292b63156290e72e2df2f724833607d1e403 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Thu, 1 Oct 2020 19:42:14 -0700 Subject: [PATCH] net: dsa: Obtain VLAN protocol from skb->protocol Now that dsa_untag_bridge_pvid() is called after eth_type_trans() we are guaranteed that skb->protocol will be set to a correct value, thus allowing us to avoid calling vlan_eth_hdr(). Signed-off-by: Florian Fainelli Reviewed-by: Vladimir Oltean Signed-off-by: David S. Miller --- net/dsa/dsa_priv.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h index 0348dbab4131..d6ce8c2a2590 100644 --- a/net/dsa/dsa_priv.h +++ b/net/dsa/dsa_priv.h @@ -201,7 +201,6 @@ dsa_slave_to_master(const struct net_device *dev) static inline struct sk_buff *dsa_untag_bridge_pvid(struct sk_buff *skb) { struct dsa_port *dp = dsa_slave_to_port(skb->dev); - struct vlan_ethhdr *hdr = vlan_eth_hdr(skb); struct net_device *br = dp->bridge_dev; struct net_device *dev = skb->dev; struct net_device *upper_dev; @@ -217,7 +216,7 @@ static inline struct sk_buff *dsa_untag_bridge_pvid(struct sk_buff *skb) return skb; /* Move VLAN tag from data to hwaccel */ - if (!skb_vlan_tag_present(skb) && hdr->h_vlan_proto == htons(proto)) { + if (!skb_vlan_tag_present(skb) && skb->protocol == htons(proto)) { skb = skb_vlan_untag(skb); if (!skb) return NULL;