diff options
Diffstat (limited to 'net/dsa/tag_rtl4_a.c')
| -rw-r--r-- | net/dsa/tag_rtl4_a.c | 21 |
1 files changed, 6 insertions, 15 deletions
diff --git a/net/dsa/tag_rtl4_a.c b/net/dsa/tag_rtl4_a.c index 57c46b4ab2b3..40811bab4d09 100644 --- a/net/dsa/tag_rtl4_a.c +++ b/net/dsa/tag_rtl4_a.c @@ -47,8 +47,8 @@ static struct sk_buff *rtl4a_tag_xmit(struct sk_buff *skb, dp->index); skb_push(skb, RTL4_A_HDR_LEN); - memmove(skb->data, skb->data + RTL4_A_HDR_LEN, 2 * ETH_ALEN); - tag = skb->data + 2 * ETH_ALEN; + dsa_alloc_etype_header(skb, RTL4_A_HDR_LEN); + tag = dsa_etype_header_pos_tx(skb); /* Set Ethertype */ p = (__be16 *)tag; @@ -64,8 +64,7 @@ static struct sk_buff *rtl4a_tag_xmit(struct sk_buff *skb, } static struct sk_buff *rtl4a_tag_rcv(struct sk_buff *skb, - struct net_device *dev, - struct packet_type *pt) + struct net_device *dev) { u16 protport; __be16 *p; @@ -77,12 +76,7 @@ static struct sk_buff *rtl4a_tag_rcv(struct sk_buff *skb, if (unlikely(!pskb_may_pull(skb, RTL4_A_HDR_LEN))) return NULL; - /* The RTL4 header has its own custom Ethertype 0x8899 and that - * starts right at the beginning of the packet, after the src - * ethernet addr. Apparently skb->data always points 2 bytes in, - * behind the Ethertype. - */ - tag = skb->data - 2; + tag = dsa_etype_header_pos_rx(skb); p = (__be16 *)tag; etype = ntohs(*p); if (etype != RTL4_A_ETHERTYPE) { @@ -109,12 +103,9 @@ static struct sk_buff *rtl4a_tag_rcv(struct sk_buff *skb, /* Remove RTL4 tag and recalculate checksum */ skb_pull_rcsum(skb, RTL4_A_HDR_LEN); - /* Move ethernet DA and SA in front of the data */ - memmove(skb->data - ETH_HLEN, - skb->data - ETH_HLEN - RTL4_A_HDR_LEN, - 2 * ETH_ALEN); + dsa_strip_etype_header(skb, RTL4_A_HDR_LEN); - skb->offload_fwd_mark = 1; + dsa_default_offload_fwd_mark(skb); return skb; } |