Drivers: hv: util: Properly handle version negotiations.
The current version negotiation code is not "future proof". Fix this
by allowing each service the flexibility to either specify the highest
version it can support or it can support the highest version number
the host is offering.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/hv/hv_kvp.c b/drivers/hv/hv_kvp.c
index 6186025..0012eed 100644
--- a/drivers/hv/hv_kvp.c
+++ b/drivers/hv/hv_kvp.c
@@ -394,7 +394,8 @@
sizeof(struct vmbuspipe_hdr)];
if (icmsghdrp->icmsgtype == ICMSGTYPE_NEGOTIATE) {
- vmbus_prep_negotiate_resp(icmsghdrp, negop, recv_buffer);
+ vmbus_prep_negotiate_resp(icmsghdrp, negop,
+ recv_buffer, MAX_SRV_VER, MAX_SRV_VER);
} else {
kvp_msg = (struct hv_kvp_msg *)&recv_buffer[
sizeof(struct vmbuspipe_hdr) +