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path: root/drivers/hv/hv_snapshot.c
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Diffstat (limited to 'drivers/hv/hv_snapshot.c')
-rw-r--r--drivers/hv/hv_snapshot.c18
1 files changed, 6 insertions, 12 deletions
diff --git a/drivers/hv/hv_snapshot.c b/drivers/hv/hv_snapshot.c
index 8ad5653ce447..e4572f3f2834 100644
--- a/drivers/hv/hv_snapshot.c
+++ b/drivers/hv/hv_snapshot.c
@@ -24,6 +24,10 @@
#include <linux/workqueue.h>
#include <linux/hyperv.h>
+#define VSS_MAJOR 5
+#define VSS_MINOR 0
+#define VSS_MAJOR_MINOR (VSS_MAJOR << 16 | VSS_MINOR)
+
/*
@@ -186,18 +190,8 @@ void hv_vss_onchannelcallback(void *context)
if (icmsghdrp->icmsgtype == ICMSGTYPE_NEGOTIATE) {
vmbus_prep_negotiate_resp(icmsghdrp, negop,
- recv_buffer, MAX_SRV_VER, MAX_SRV_VER);
- /*
- * We currently negotiate the highest number the
- * host has presented. If this version is not
- * atleast 5.0, reject.
- */
- negop = (struct icmsg_negotiate *)&recv_buffer[
- sizeof(struct vmbuspipe_hdr) +
- sizeof(struct icmsg_hdr)];
-
- if (negop->icversion_data[1].major < 5)
- negop->icframe_vercnt = 0;
+ recv_buffer, UTIL_FW_MAJOR_MINOR,
+ VSS_MAJOR_MINOR);
} else {
vss_msg = (struct hv_vss_msg *)&recv_buffer[
sizeof(struct vmbuspipe_hdr) +