net_sched: act: clean up notification functions

Refactor tcf_add_notify() and factor out tcf_del_notify().

Cc: Jamal Hadi Salim <[email protected]>
Cc: David S. Miller <[email protected]>
Signed-off-by: Cong Wang <[email protected]>
Signed-off-by: Jamal Hadi Salim <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
1 file changed