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The local loopback of an outgoing DR SMP response is limited to those that originate at the driver specific SMA implementation during the driver specific process_mad() function. This patch enables a returning DR SMP originating in userspace (or elsewhere) to be delivered to the local managment stack. In this specific case the driver process_mad() function does not consume or process the MAD, so a reponse mad has not be created and the original MAD must manually be copied to the MAD buffer that is to be handed off to the local agent. Signed-off-by: Steve Welch <swelch@systemfabricworks.com> Acked-by: Hal Rosenstock <hal@xsigo.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>