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authorEric W. Biederman <ebiederm@xmission.com>2015-03-03 09:41:47 -0600
committerDavid S. Miller <davem@davemloft.net>2015-03-03 14:44:41 -0500
commit1d5da757da860a6916adbf68b09e868062b4b3b8 (patch)
treedeee80ad76638718a7babc524235ff13f35b2f98 /drivers/net/hamradio/bpqether.c
parentbcc90e3fb132f009e647c9032eab4fedb6399339 (diff)
ax25: Stop using magic neighbour cache operations.
Before the ax25 stack calls dev_queue_xmit it always calls ax25_type_trans which sets skb->protocol to ETH_P_AX25. Which means that by looking at the protocol type it is possible to detect IP packets that have not been munged by the ax25 stack in ndo_start_xmit and call a function to munge them. Rename ax25_neigh_xmit to ax25_ip_xmit and tweak the return type and value to be appropriate for an ndo_start_xmit function. Update all of the ax25 devices to test the protocol type for ETH_P_IP and return ax25_ip_xmit as the first thing they do. This preserves the existing semantics of IP packet processing, but the timing will be a little different as the IP packets now pass through the qdisc layer before reaching the ax25 ip packet processing. Remove the now unnecessary ax25 neighbour table operations. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/hamradio/bpqether.c')
-rw-r--r--drivers/net/hamradio/bpqether.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/hamradio/bpqether.c b/drivers/net/hamradio/bpqether.c
index bce105b16ed0..63ff08a26da8 100644
--- a/drivers/net/hamradio/bpqether.c
+++ b/drivers/net/hamradio/bpqether.c
@@ -251,6 +251,9 @@ static netdev_tx_t bpq_xmit(struct sk_buff *skb, struct net_device *dev)
struct net_device *orig_dev;
int size;
+ if (skb->protocol == htons(ETH_P_IP))
+ return ax25_ip_xmit(skb);
+
/*
* Just to be *really* sure not to send anything if the interface
* is down, the ethernet device may have gone.
@@ -469,7 +472,6 @@ static const struct net_device_ops bpq_netdev_ops = {
.ndo_start_xmit = bpq_xmit,
.ndo_set_mac_address = bpq_set_mac_address,
.ndo_do_ioctl = bpq_ioctl,
- .ndo_neigh_construct = ax25_neigh_construct,
};
static void bpq_setup(struct net_device *dev)
@@ -487,7 +489,6 @@ static void bpq_setup(struct net_device *dev)
#endif
dev->type = ARPHRD_AX25;
- dev->neigh_priv_len = sizeof(struct ax25_neigh_priv);
dev->hard_header_len = AX25_MAX_HEADER_LEN + AX25_BPQ_HEADER_LEN;
dev->mtu = AX25_DEF_PACLEN;
dev->addr_len = AX25_ADDR_LEN;