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Commit f8126f1d authored by David S. Miller's avatar David S. Miller
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ipv4: Adjust semantics of rt->rt_gateway.


In order to allow prefixed routes, we have to adjust how rt_gateway
is set and interpreted.

The new interpretation is:

1) rt_gateway == 0, destination is on-link, nexthop is iph->daddr

2) rt_gateway != 0, destination requires a nexthop gateway

Abstract the fetching of the proper nexthop value using a new
inline helper, rt_nexthop(), as suggested by Joe Perches.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Tested-by: default avatarVijay Subramanian <subramanian.vijay@gmail.com>
parent f1ce3062
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