From 1d6801f9dd3ebb054ae685153a01b1a4ec817f46 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Thu, 1 Sep 2005 09:19:44 -0700 Subject: [PATCH] [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: Michael S. Tsirkin Signed-off-by: Roland Dreier --- drivers/infiniband/core/sa_query.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c index 126ac80db7b8..9191793c9007 100644 --- a/drivers/infiniband/core/sa_query.c +++ b/drivers/infiniband/core/sa_query.c @@ -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); -- 2.20.1