Drivers: hv: Add new message types to enhance KVP

Add additional KVP (Key Value Pair) protocol  messages to
enhance KVP functionality for Linux guests on Hyper-V. As part of this,
patch define an explicit version negoitiation message.

Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/hv/hv_kvp.c b/drivers/hv/hv_kvp.c
index 0ef4c1f6ca54..779109b6f4f0 100644
--- a/drivers/hv/hv_kvp.c
+++ b/drivers/hv/hv_kvp.c
@@ -78,7 +78,7 @@ kvp_register(void)
 
         if (msg) {
                 kvp_msg = (struct hv_kvp_msg *)msg->data;
-                version = kvp_msg->body.kvp_version;
+                version = kvp_msg->body.kvp_register.version;
                 msg->id.idx =  CN_KVP_IDX;
                 msg->id.val = CN_KVP_VAL;
 
@@ -122,7 +122,8 @@ kvp_cn_callback(struct cn_msg *msg, struct netlink_skb_parms *nsp)
                  * to the host. But first, cancel the timeout.
                  */
                 if (cancel_delayed_work_sync(&kvp_work))
-                        kvp_respond_to_host(data->data.key, data->data.value,
+                        kvp_respond_to_host(data->data.key,
+                                         data->data.value,
                                         !strlen(data->data.key));
         }
 }