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| author | Eric W. Biederman <ebiederm@xmission.com> | 2015-03-03 09:41:47 -0600 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-03-03 14:44:41 -0500 |
| commit | 1d5da757da860a6916adbf68b09e868062b4b3b8 (patch) | |
| tree | deee80ad76638718a7babc524235ff13f35b2f98 /drivers/net/hamradio/mkiss.c | |
| parent | bcc90e3fb132f009e647c9032eab4fedb6399339 (diff) | |
| download | linux-stable-1d5da757da860a6916adbf68b09e868062b4b3b8.tar.gz linux-stable-1d5da757da860a6916adbf68b09e868062b4b3b8.tar.bz2 linux-stable-1d5da757da860a6916adbf68b09e868062b4b3b8.zip | |
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/mkiss.c')
| -rw-r--r-- | drivers/net/hamradio/mkiss.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/hamradio/mkiss.c b/drivers/net/hamradio/mkiss.c index c12ec2c2b594..17058c490b79 100644 --- a/drivers/net/hamradio/mkiss.c +++ b/drivers/net/hamradio/mkiss.c @@ -529,6 +529,9 @@ static netdev_tx_t ax_xmit(struct sk_buff *skb, struct net_device *dev) { struct mkiss *ax = netdev_priv(dev); + if (skb->protocol == htons(ETH_P_IP)) + return ax25_ip_xmit(skb); + if (!netif_running(dev)) { printk(KERN_ERR "mkiss: %s: xmit call when iface is down\n", dev->name); return NETDEV_TX_BUSY; @@ -641,7 +644,6 @@ static const struct net_device_ops ax_netdev_ops = { .ndo_stop = ax_close, .ndo_start_xmit = ax_xmit, .ndo_set_mac_address = ax_set_mac_address, - .ndo_neigh_construct = ax25_neigh_construct, }; static void ax_setup(struct net_device *dev) @@ -651,7 +653,6 @@ static void ax_setup(struct net_device *dev) dev->hard_header_len = 0; dev->addr_len = 0; dev->type = ARPHRD_AX25; - dev->neigh_priv_len = sizeof(struct ax25_neigh_priv); dev->tx_queue_len = 10; dev->header_ops = &ax25_header_ops; dev->netdev_ops = &ax_netdev_ops; |