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-rw-r--r--include/linux/hyperv.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index bee559ada3bb..134a2022a7a3 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -1204,5 +1204,11 @@ int hv_kvp_init(struct hv_util_service *);
void hv_kvp_deinit(void);
void hv_kvp_onchannelcallback(void *);
+/*
+ * Negotiated version with the Host.
+ */
+
+extern __u32 vmbus_proto_version;
+
#endif /* __KERNEL__ */
#endif /* _HYPERV_H */