tree 45f0b17eec491c1f35adff81aa1d1b07c4a7ea48
parent 161642e24fee40fba2c5bc2ceacc00d118a22d65
author Eric W. Biederman <ebiederm@xmission.com> 1444416293 -0500
committer David S. Miller <davem@davemloft.net> 1444704254 -0700

ipv4: Only compute net once in ip_call_ra_chain

ip_call_ra_chain is called early in the forwarding chain from
ip_forward and ip_mr_input, which makes skb->dev the correct
expression to get the input network device and dev_net(skb->dev) a
correct expression for the network namespace the packet is being
processed in.

Compute the network namespace and store it in a variable to make the
code clearer.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>