Drivers: hv: vmbus: briefly comment num_sc and next_oc

next_oc and num_sc fields of struct vmbus_channel deserve a description. Move
them closer to sc_list as these fields are related to it.
Signed-off-by: NVitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: NK. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

include/linux/hyperv.h

@@ -726,6 +726,15 @@ struct vmbus_channel {
 	 * All Sub-channels of a primary channel are linked here.
 	 */
 	struct list_head sc_list;
+	/*
+	 * Current number of sub-channels.
+	 */
+	int num_sc;
+	/*
+	 * Number of a sub-channel (position within sc_list) which is supposed
+	 * to be used as the next outgoing channel.
+	 */
+	int next_oc;
 	/*
 	 * The primary channel this sub-channel belongs to.
 	 * This will be NULL for the primary channel.
@@ -740,9 +749,6 @@ struct vmbus_channel {
 	 * link up channels based on their CPU affinity.
 	 */
 	struct list_head percpu_list;
-
-	int num_sc;
-	int next_oc;
 };
 
 static inline void set_channel_read_state(struct vmbus_channel *c, bool state)