mlxsw: spectrum_router: Fix saddr deduction in mlxsw_sp_ipip_entry_create()
authorPetr Machata <petrm@mellanox.com>
Fri, 3 Nov 2017 09:03:39 +0000 (10:03 +0100)
committerDavid S. Miller <davem@davemloft.net>
Sat, 4 Nov 2017 00:15:17 +0000 (09:15 +0900)
commit4526cc8aed2b4bf481709911fc1fee9f040ccda1
tree689d07dfd6567feef07464b666ddd4fcaa11c84a
parent0c5f1cd5ba8c03567c67910816a7a0fb9fee5746
mlxsw: spectrum_router: Fix saddr deduction in mlxsw_sp_ipip_entry_create()

When trying to determine whether there are other offloaded tunnels with
the same local address, mlxsw_sp_ipip_entry_create() should look for a
tunnel with matching UL protocol, matching saddr, in the same VRF.
However instead of taking into account the UL protocol of the tunnel
netdevice (which mlxsw_sp_ipip_entry_saddr_matches() then compares to
the UL protocol of inspected IPIP entry), it deduces the UL protocol
from the inspected IPIP entry (and that's compared to itself).

This is currently immaterial, because only one tunnel type is offloaded,
and therefore the UL protocol always matches, but introducing support
for a tunnel with IPv6 underlay would uncover this error.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c