Merge tag 'qcom-smd-list-voltage' of git://git.kernel.org/pub/scm/linux/kernel/git...

[karo-tx-linux.git] / drivers / infiniband / core / verbs.c

diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 1d7d4cf442e3c9646b6824e943e7e649c873d104..6298f54b413756a5bf0f19891a080739ec6300ef 100644 (file)
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -511,12 +511,16 @@ int ib_init_ah_from_wc(struct ib_device *device, u8 port_num,
                ah_attr->grh.dgid = sgid;
 
                if (!rdma_cap_eth_ah(device, port_num)) {
-                       ret = ib_find_cached_gid_by_port(device, &dgid,
-                                                        IB_GID_TYPE_IB,
-                                                        port_num, NULL,
-                                                        &gid_index);
-                       if (ret)
-                               return ret;
+                       if (dgid.global.interface_id != cpu_to_be64(IB_SA_WELL_KNOWN_GUID)) {
+                               ret = ib_find_cached_gid_by_port(device, &dgid,
+                                                                IB_GID_TYPE_IB,
+                                                                port_num, NULL,
+                                                                &gid_index);
+                               if (ret)
+                                       return ret;
+                       } else {
+                               gid_index = 0;
+                       }
                }
 
                ah_attr->grh.sgid_index = (u8) gid_index;