Index: pml_ob1.c
===================================================================
--- pml_ob1.c	(revision 23023)
+++ pml_ob1.c	(working copy)
@@ -197,7 +197,7 @@
 
     for( i = 0; i < comm->c_remote_group->grp_proc_count; i++ ) {
         pml_comm->procs[i].ompi_proc = ompi_group_peer_lookup(comm->c_remote_group,i);
-	OBJ_RETAIN(pml_comm->procs[i].ompi_proc);
+        OBJ_RETAIN(pml_comm->procs[i].ompi_proc);
     }
     /* Grab all related messages from the non_existing_communicator pending queue */
     for( item = opal_list_get_first(&mca_pml_ob1.non_existing_communicator_pending);
@@ -471,7 +471,7 @@
  */
 int mca_pml_ob1_send_fin( ompi_proc_t* proc,
                           mca_bml_base_btl_t* bml_btl,
-                          void *hdr_des,
+                          ompi_ptr_t hdr_des,
                           uint8_t order,
                           uint32_t status )
 {
@@ -493,7 +493,7 @@
     hdr = (mca_pml_ob1_fin_hdr_t*)fin->des_src->seg_addr.pval;
     hdr->hdr_common.hdr_flags = 0;
     hdr->hdr_common.hdr_type = MCA_PML_OB1_HDR_TYPE_FIN;
-    hdr->hdr_des.pval = hdr_des;
+    hdr->hdr_des = hdr_des;
     hdr->hdr_fail = status;
 
     ob1_hdr_hton(hdr, MCA_PML_OB1_HDR_TYPE_FIN, proc);
@@ -559,7 +559,7 @@
                 break;
             case MCA_PML_OB1_HDR_TYPE_FIN:
                 rc = mca_pml_ob1_send_fin(pckt->proc, send_dst,
-                                          pckt->hdr.hdr_fin.hdr_des.pval,
+                                          pckt->hdr.hdr_fin.hdr_des,
                                           pckt->order,
                                           pckt->hdr.hdr_fin.hdr_fail);
                 if( OPAL_UNLIKELY(OMPI_ERR_OUT_OF_RESOURCE == rc) ) {
Index: pml_ob1_sendreq.c
===================================================================
--- pml_ob1_sendreq.c	(revision 23023)
+++ pml_ob1_sendreq.c	(working copy)
@@ -1102,7 +1102,7 @@
 
     mca_pml_ob1_send_fin(sendreq->req_send.req_base.req_proc, 
                          bml_btl,
-                         frag->rdma_hdr.hdr_rdma.hdr_des.pval,
+                         frag->rdma_hdr.hdr_rdma.hdr_des,
                          des->order, 0);
     
     /* check for request completion */
@@ -1147,7 +1147,7 @@
 
             /* tell receiver to unregister memory */
             mca_pml_ob1_send_fin(sendreq->req_send.req_base.req_proc,
-                    bml_btl, frag->rdma_hdr.hdr_rdma.hdr_des.pval,
+                    bml_btl, frag->rdma_hdr.hdr_rdma.hdr_des,
                     MCA_BTL_NO_ORDER, 1);
 
             /* send fragment by copy in/out */
Index: pml_ob1.h
===================================================================
--- pml_ob1.h	(revision 23023)
+++ pml_ob1.h	(working copy)
@@ -212,7 +212,7 @@
                                                                     \
         MCA_PML_OB1_PCKT_PENDING_ALLOC(_pckt,_rc);                  \
         _pckt->hdr.hdr_common.hdr_type = MCA_PML_OB1_HDR_TYPE_FIN;  \
-        _pckt->hdr.hdr_fin.hdr_des.pval = (D);                      \
+        _pckt->hdr.hdr_fin.hdr_des = (D);                           \
         _pckt->hdr.hdr_fin.hdr_fail = (S);                          \
         _pckt->proc = (P);                                          \
         _pckt->bml_btl = (B);                                       \
@@ -225,7 +225,7 @@
 
 
 int mca_pml_ob1_send_fin(ompi_proc_t* proc, mca_bml_base_btl_t* bml_btl, 
-        void *hdr_des, uint8_t order, uint32_t status);
+        ompi_ptr_t hdr_des, uint8_t order, uint32_t status);
 
 /* This function tries to resend FIN/ACK packets from pckt_pending queue.
  * Packets are added to the queue when sending of FIN or ACK is failed due to