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a207eab103
In order to add per-nexthop statistics, but still not increase netlink message size for consumers that do not care about them, there needs to be a toggle through which the user indicates their desire to get the statistics. To that end, add a new attribute, NHA_OP_FLAGS. The idea is to be able to use the attribute for carrying of arbitrary operation-specific flags, i.e. not make it specific for get / dump. Add the new attribute to get and dump policies, but do not actually allow any flags yet -- those will come later as the flags themselves are defined. Add the necessary parsing code. Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: David Ahern <dsahern@kernel.org> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>