diff options
| author | Linus Lüssing <linus.luessing@web.de> | 2014-01-20 01:22:45 +0400 |
|---|---|---|
| committer | Antonio Quartulli <antonio@meshcoding.com> | 2014-03-22 11:50:26 +0400 |
| commit | 927c2ed7e5879a96759aadda94404d516ce9fb42 (patch) | |
| tree | fea8526ec7713221769eaf1bdc34533c45bbb4bb /net/batman-adv/gateway_client.c | |
| parent | abae9479ca9fa5616ae0debfbda54bf5424001df (diff) | |
| download | linux-927c2ed7e5879a96759aadda94404d516ce9fb42.tar.xz | |
batman-adv: use vlan_/eth_hdr() instead of skb->data in interface_tx path
Our .ndo_start_xmit handler (batadv_interface_tx()) can rely on having
the skb mac header pointer set correctly since the following commit
present in kernels >= 3.9:
"net: reset mac header in dev_start_xmit()" (6d1ccff627)
Therefore we can safely use eth_hdr() and vlan_eth_hdr() instead of
skb->data now, which spares us some ugly type casts.
At the same time set the mac_header in batadv_dat_snoop_incoming_arp_request()
before sending the skb along the TX path.
Signed-off-by: Linus Lüssing <linus.luessing@web.de>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
Diffstat (limited to 'net/batman-adv/gateway_client.c')
| -rw-r--r-- | net/batman-adv/gateway_client.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c index d7fafc1009a0..07c7f2177648 100644 --- a/net/batman-adv/gateway_client.c +++ b/net/batman-adv/gateway_client.c @@ -678,7 +678,7 @@ batadv_gw_dhcp_recipient_get(struct sk_buff *skb, unsigned int *header_len, if (!pskb_may_pull(skb, *header_len + ETH_HLEN)) return BATADV_DHCP_NO; - ethhdr = (struct ethhdr *)skb->data; + ethhdr = eth_hdr(skb); proto = ethhdr->h_proto; *header_len += ETH_HLEN; @@ -687,7 +687,7 @@ batadv_gw_dhcp_recipient_get(struct sk_buff *skb, unsigned int *header_len, if (!pskb_may_pull(skb, *header_len + VLAN_HLEN)) return BATADV_DHCP_NO; - vhdr = (struct vlan_ethhdr *)skb->data; + vhdr = vlan_eth_hdr(skb); proto = vhdr->h_vlan_encapsulated_proto; *header_len += VLAN_HLEN; } @@ -726,7 +726,7 @@ batadv_gw_dhcp_recipient_get(struct sk_buff *skb, unsigned int *header_len, return BATADV_DHCP_NO; /* skb->data might have been reallocated by pskb_may_pull() */ - ethhdr = (struct ethhdr *)skb->data; + ethhdr = eth_hdr(skb); if (ntohs(ethhdr->h_proto) == ETH_P_8021Q) ethhdr = (struct ethhdr *)(skb->data + VLAN_HLEN); |