pptp: Constify the po parameter of pptp_route_output().

Make it explicit that this function doesn't modify the socket passed as
parameter.

Signed-off-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Guillaume Nault 2023-07-11 15:06:26 +02:00 • committed by David S. Miller
commit dc4c399d21