On Mon, Mar 07, 2016 at 11:08:53PM +0200, Eli Cohen wrote: > + err = ib_query_gid(ibdev, port, 0, &gid, NULL); > + if (err) > + return err; > + > + props->subnet_prefix = be64_to_cpu(gid.global.subnet_prefix); Why not put this common pattern in ibv_query_port? device->query_port(ibdev, port, ..); if (props->subnet_prefix == 0) { err = ib_query_gid(ibdev, port, 0, &gid, NULL); if (err) return err; props->subnet_prefix = be64_to_cpu(gid.global.subnet_prefix); } > +++ b/include/rdma/ib_verbs.h > @@ -509,6 +509,7 @@ struct ib_port_attr { > u8 active_width; > u8 active_speed; > u8 phys_state; > + u64 subnet_prefix; > }; Can we put that at the start for better alignment? Jason -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html