Staging: hv: make alloc_channel static

It's only used in one file, and is a pretty generic name.

Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/hv/channel_mgmt.c

@@ -237,7 +237,7 @@ EXPORT_SYMBOL(hv_cb_utils);
 /*
  * alloc_channel - Allocate and initialize a vmbus channel object
  */
-struct vmbus_channel *alloc_channel(void)
+static struct vmbus_channel *alloc_channel(void)
 {
 	struct vmbus_channel *channel;
 

drivers/staging/hv/channel_mgmt.h

@@ -307,8 +307,6 @@ struct vmbus_channel_msginfo {
 };
 
 
-struct vmbus_channel *alloc_channel(void);
-
 void free_channel(struct vmbus_channel *channel);
 
 void vmbus_onmessage(void *context);