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They were already implemented at a lower layer, but the upper level routine placed arbitrary restrictions on which transitions were permitted. Simplify the state machine logic to live wholly in usnic_ib_qp_grp_modify. Signed-off-by: Dave Goodell <dgoodell@cisco.com> Reviewed-by: Reese Faucette <rfaucett@cisco.com> Reviewed-by: Xuyang Wang <xuywang@cisco.com> Signed-off-by: Nelson Escobar <neescoba@cisco.com> Signed-off-by: Doug Ledford <dledford@redhat.com>