From 37f7278b81a9ab9b76cf4d716ba420444ca4a616 Mon Sep 17 00:00:00 2001 From: "K. Y. Srinivasan" Date: Sat, 1 Dec 2012 06:46:41 -0800 Subject: Drivers: hv: Save and export negotiated vmbus version Export the negotiated vmbus version as this may be useful for individual drivers. Signed-off-by: K. Y. Srinivasan Reviewed-by: Haiyang Zhang Signed-off-by: Greg Kroah-Hartman --- drivers/hv/connection.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'drivers/hv') diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c index 2b56a3f..70ea5d1 100644 --- a/drivers/hv/connection.c +++ b/drivers/hv/connection.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include "hyperv_vmbus.h" @@ -54,6 +55,12 @@ struct vmbus_connection vmbus_connection = { #define VERSION_INVAL -1 +/* + * Negotiated protocol version with the host. + */ +__u32 vmbus_proto_version; +EXPORT_SYMBOL_GPL(vmbus_proto_version); + static __u32 vmbus_get_next_version(__u32 current_version) { switch (current_version) { @@ -215,6 +222,8 @@ int vmbus_connect(void) if (version == VERSION_INVAL) goto cleanup; + vmbus_proto_version = version; + pr_info("Negotiated host information %d\n", version); kfree(msginfo); return 0; -- cgit v1.1