Merge remote-tracking branch 'linus/master' into testing

1 files changed, 14 insertions, 0 deletions

diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c
index 253a74ba245..ec3b8cdf1e0 100644
--- a/drivers/hv/connection.c
+++ b/drivers/hv/connection.c
@@ -246,12 +246,26 @@ struct vmbus_channel *relid2channel(u32 relid)
 	struct vmbus_channel *channel;
 	struct vmbus_channel *found_channel  = NULL;
 	unsigned long flags;
+	struct list_head *cur, *tmp;
+	struct vmbus_channel *cur_sc;
 
 	spin_lock_irqsave(&vmbus_connection.channel_lock, flags);
 	list_for_each_entry(channel, &vmbus_connection.chn_list, listentry) {
 		if (channel->offermsg.child_relid == relid) {
 			found_channel = channel;
 			break;
+		} else if (!list_empty(&channel->sc_list)) {
+			/*
+			 * Deal with sub-channels.
+			 */
+			list_for_each_safe(cur, tmp, &channel->sc_list) {
+				cur_sc = list_entry(cur, struct vmbus_channel,
+							sc_list);
+				if (cur_sc->offermsg.child_relid == relid) {
+					found_channel = cur_sc;
+					break;
+				}
+			}
 		}
 	}
 	spin_unlock_irqrestore(&vmbus_connection.channel_lock, flags);