tree f686fef8ef3d80f81bd9f91072ce8c5f347e3e7c
parent 33765d06033cc4ba4d9ae6d3d606ef3f28773c1b
author David S. Miller <davem@davemloft.net> 1298583492 -0800
committer David S. Miller <davem@davemloft.net> 1298583492 -0800

ipv4: Rearrange how ip_route_newports() gets port keys.

ip_route_newports() is the only place in the entire kernel that
cares about the port members in the routing cache entry's lookup
flow key.

Therefore the only reason we store an entire flow inside of the
struct rtentry is for this one special case.

Rewrite ip_route_newports() such that:

1) The caller passes in the original port values, so we don't need
   to use the rth->fl.fl_ip_{s,d}port values to remember them.

2) The lookup flow is constructed by hand instead of being copied
   from the routing cache entry's flow.

Signed-off-by: David S. Miller <davem@davemloft.net>