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H A Drtnetlink.cdiff b0ab2fabb5b91da99c189db02e91ae10bc8355c5 Thu Jun 26 02:58:25 CDT 2014 Jiri Pirko <jiri@resnulli.us> rtnetlink: allow to register ops without ops->setup set

So far, it is assumed that ops->setup is filled up. But there might be
case that ops might make sense even without ->setup. In that case,
forbid to newlink and dellink.

This allows to register simple rtnl link ops containing only ->kind.
That allows consistent way of passing device kind (either device-kind or
slave-kind) to userspace.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
H A Ddev.cdiff b0ab2fabb5b91da99c189db02e91ae10bc8355c5 Thu Jun 26 02:58:25 CDT 2014 Jiri Pirko <jiri@resnulli.us> rtnetlink: allow to register ops without ops->setup set

So far, it is assumed that ops->setup is filled up. But there might be
case that ops might make sense even without ->setup. In that case,
forbid to newlink and dellink.

This allows to register simple rtnl link ops containing only ->kind.
That allows consistent way of passing device kind (either device-kind or
slave-kind) to userspace.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>