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| author | Linus Lüssing <linus.luessing@web.de> | 2014-01-19 22:22:45 +0100 |
|---|---|---|
| committer | Antonio Quartulli <antonio@meshcoding.com> | 2014-03-22 08:50:26 +0100 |
| commit | 927c2ed7e5879a96759aadda94404d516ce9fb42 (patch) | |
| tree | fea8526ec7713221769eaf1bdc34533c45bbb4bb /net/batman-adv/soft-interface.c | |
| parent | abae9479ca9fa5616ae0debfbda54bf5424001df (diff) | |
| download | linux-927c2ed7e5879a96759aadda94404d516ce9fb42.tar.gz linux-927c2ed7e5879a96759aadda94404d516ce9fb42.tar.bz2 linux-927c2ed7e5879a96759aadda94404d516ce9fb42.zip | |
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/soft-interface.c')
| -rw-r--r-- | net/batman-adv/soft-interface.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c index f82c267e1886..c4392fcd4eb0 100644 --- a/net/batman-adv/soft-interface.c +++ b/net/batman-adv/soft-interface.c @@ -176,11 +176,11 @@ static int batadv_interface_tx(struct sk_buff *skb, soft_iface->trans_start = jiffies; vid = batadv_get_vid(skb, 0); - ethhdr = (struct ethhdr *)skb->data; + ethhdr = eth_hdr(skb); switch (ntohs(ethhdr->h_proto)) { case ETH_P_8021Q: - vhdr = (struct vlan_ethhdr *)skb->data; + vhdr = vlan_eth_hdr(skb); if (vhdr->h_vlan_encapsulated_proto != ethertype) break; @@ -194,7 +194,7 @@ static int batadv_interface_tx(struct sk_buff *skb, goto dropped; /* skb->data might have been reallocated by batadv_bla_tx() */ - ethhdr = (struct ethhdr *)skb->data; + ethhdr = eth_hdr(skb); /* Register the client MAC in the transtable */ if (!is_multicast_ether_addr(ethhdr->h_source)) { @@ -230,7 +230,7 @@ static int batadv_interface_tx(struct sk_buff *skb, /* skb->data may have been modified by * batadv_gw_dhcp_recipient_get() */ - ethhdr = (struct ethhdr *)skb->data; + ethhdr = eth_hdr(skb); /* if gw_mode is on, broadcast any non-DHCP message. * All the DHCP packets are going to be sent as unicast */ |