IB/hfi1: Rename struct ahg_ib_header to struct hfi1_ahg_info

struct ahg_ib_header has no header specific information.
Rename it to struct hfi1_ahg_info

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Don Hiatt <don.hiatt@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
diff --git a/drivers/infiniband/hw/hfi1/ud.c b/drivers/infiniband/hw/hfi1/ud.c
index d4afb1d..08a9c12 100644
--- a/drivers/infiniband/hw/hfi1/ud.c
+++ b/drivers/infiniband/hw/hfi1/ud.c
@@ -430,9 +430,9 @@
 					 qp->qkey : wqe->ud_wr.remote_qkey);
 	ohdr->u.ud.deth[1] = cpu_to_be32(qp->ibqp.qp_num);
 	/* disarm any ahg */
-	priv->s_hdr->ahgcount = 0;
-	priv->s_hdr->ahgidx = 0;
-	priv->s_hdr->tx_flags = 0;
+	priv->s_ahg->ahgcount = 0;
+	priv->s_ahg->ahgidx = 0;
+	priv->s_ahg->tx_flags = 0;
 	/* pbc */
 	ps->s_txreq->hdr_dwords = qp->s_hdrwords + 2;