iwlagn: prepare for multi-TB commands

In a subsequent patch, I want to make commands use
multiple TBs in a TFD. This is a simple change to
prepare the data structures for this, with as of
now still just a single TB supported.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-sv-open.c b/drivers/net/wireless/iwlwifi/iwl-sv-open.c
index 89b6696..01a8ec9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sv-open.c
+++ b/drivers/net/wireless/iwlwifi/iwl-sv-open.c
@@ -198,10 +198,10 @@
 	}
 
 	cmd.id = nla_get_u8(tb[IWL_TM_ATTR_UCODE_CMD_ID]);
-	cmd.data = nla_data(tb[IWL_TM_ATTR_UCODE_CMD_DATA]);
-	cmd.len = nla_len(tb[IWL_TM_ATTR_UCODE_CMD_DATA]);
+	cmd.data[0] = nla_data(tb[IWL_TM_ATTR_UCODE_CMD_DATA]);
+	cmd.len[0] = nla_len(tb[IWL_TM_ATTR_UCODE_CMD_DATA]);
 	IWL_INFO(priv, "testmode ucode command ID 0x%x, flags 0x%x,"
-				" len %d\n", cmd.id, cmd.flags, cmd.len);
+				" len %d\n", cmd.id, cmd.flags, cmd.len[0]);
 	/* ok, let's submit the command to ucode */
 	return iwl_send_cmd(priv, &cmd);
 }