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Commit 1d6801f9 authored by Michael S. Tsirkin's avatar Michael S. Tsirkin Committed by Roland Dreier
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[PATCH] IB/sa_query: avoid unnecessary list scan 



Using ib_get_client_data in SA event handler performs a list scan.
It's better to use container_of to get the sa device directly.

Signed-off-by: default avatarMichael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent 06c56e44

drivers/infiniband/core/sa_query.c

+2 −2
Original line number Diff line number Diff line
@@ -431,8 +431,8 @@ static void ib_sa_event(struct ib_event_handler *handler, struct ib_event *event 
	    event->event == IB_EVENT_LID_CHANGE  ||

	    event->event == IB_EVENT_PKEY_CHANGE ||

	    event->event == IB_EVENT_SM_CHANGE) {

		struct ib_sa_device *sa_dev =

			ib_get_client_data(event->device, &sa_client);

		struct ib_sa_device *sa_dev;

		sa_dev = container_of(handler, typeof(*sa_dev), event_handler);



		schedule_work(&sa_dev->port[event->element.port_num -

					    sa_dev->start_port].update_task);