IB/core: Make gid_table_reserve_default() return void

gid_table_reserve_default() always returns zero. Make it return void and
simplify error checking.

rdma_port is already calculated, use that while calling
gid_table_reserve_default() instead of recalculating it.
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

drivers/infiniband/core/cache.c

@@ -757,7 +757,7 @@ void ib_cache_gid_set_default_gid(struct ib_device *ib_dev, u8 port,
 	}
 }
 
-static int gid_table_reserve_default(struct ib_device *ib_dev, u8 port,
+static void gid_table_reserve_default(struct ib_device *ib_dev, u8 port,
 				      struct ib_gid_table *table)
 {
 	unsigned int i;
@@ -768,8 +768,7 @@ static int gid_table_reserve_default(struct ib_device *ib_dev, u8 port,
 	roce_gid_type_mask = roce_gid_type_mask_support(ib_dev, port);
 	num_default_gids = hweight_long(roce_gid_type_mask);
 	for (i = 0; i < num_default_gids && i < table->sz; i++) {
-		struct ib_gid_table_entry *entry =
-			&table->data_vec[i];
+		struct ib_gid_table_entry *entry = &table->data_vec[i];
 
 		entry->props |= GID_TABLE_ENTRY_DEFAULT;
 		current_gid = find_next_bit(&roce_gid_type_mask,
@@ -777,8 +776,6 @@ static int gid_table_reserve_default(struct ib_device *ib_dev, u8 port,
 					    current_gid);
 		entry->attr.gid_type = current_gid++;
 	}
-
-	return 0;
 }
 
 static int _gid_table_setup_one(struct ib_device *ib_dev)
@@ -790,19 +787,14 @@ static int _gid_table_setup_one(struct ib_device *ib_dev)
 	for (port = 0; port < ib_dev->phys_port_cnt; port++) {
 		u8 rdma_port = port + rdma_start_port(ib_dev);
 
-		table =
-			alloc_gid_table(
+		table =	alloc_gid_table(
 				ib_dev->port_immutable[rdma_port].gid_tbl_len);
 		if (!table) {
 			err = -ENOMEM;
 			goto rollback_table_setup;
 		}
 
-		err = gid_table_reserve_default(ib_dev,
-						port + rdma_start_port(ib_dev),
-						table);
-		if (err)
-			goto rollback_table_setup;
+		gid_table_reserve_default(ib_dev, rdma_port, table);
 		ib_dev->cache.ports[port].gid = table;
 	}