From a86d8becc3f04a5e350b5a17530e6a01495c00a5 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Sat, 8 Apr 2017 08:55:23 -0700 Subject: net: dsa: Factor bottom tag receive functions All DSA tag receive functions do strictly the same thing after they have located the originating source port from their tag specific protocol: - push ETH_HLEN bytes - set pkt_type to PACKET_HOST - call eth_type_trans() - bump up counters - call netif_receive_skb() Factor all of that into dsa_switch_rcv(). This also makes us return a pointer to a sk_buff, which makes us symetric with the xmit function. Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- net/dsa/dsa.c | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-) (limited to 'net/dsa/dsa.c') diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c index d370c8bfa372..1fb9cf7aaaf4 100644 --- a/net/dsa/dsa.c +++ b/net/dsa/dsa.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include "dsa_priv.h" @@ -900,6 +901,7 @@ static int dsa_switch_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev) { struct dsa_switch_tree *dst = dev->dsa_ptr; + struct sk_buff *nskb = NULL; if (unlikely(dst == NULL)) { kfree_skb(skb); @@ -910,7 +912,23 @@ static int dsa_switch_rcv(struct sk_buff *skb, struct net_device *dev, if (!skb) return 0; - return dst->rcv(skb, dev, pt, orig_dev); + nskb = dst->rcv(skb, dev, pt, orig_dev); + if (!nskb) { + kfree_skb(skb); + return 0; + } + + skb = nskb; + skb_push(skb, ETH_HLEN); + skb->pkt_type = PACKET_HOST; + skb->protocol = eth_type_trans(skb, skb->dev); + + skb->dev->stats.rx_packets++; + skb->dev->stats.rx_bytes += skb->len; + + netif_receive_skb(skb); + + return 0; } static struct packet_type dsa_pack_type __read_mostly = { -- cgit v1.2.3