staging: hv: Convert vmbus driver interface function pointer table to constant

Convert vmbus driver interface function pointer table to constant
The vmbus interface functions are assigned to a constant - vmbus_ops.

Because the vmbus interface function pointer table is converted to a
constant variable -- vmbus_ops, the function GetChannelInterface(),
VmbusGetChannelInterface() and pointer GetChannelInterface are no longer
in use. The deprecated function's work is done by the initialization of
the newly added constant variable vmbus_ops.

I created the new constant variable vmbus_ops and removed the deprecated
function pointer GetChannelInterface in one patch.

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

1 files changed, 15 insertions, 14 deletions

diff --git a/drivers/staging/hv/channel_interface.c b/drivers/staging/hv/channel_interface.c
index d9f51ac75ea..3f6a1cb9cd8 100644
--- a/drivers/staging/hv/channel_interface.c
+++ b/drivers/staging/hv/channel_interface.c
@@ -97,20 +97,6 @@ static int IVmbusChannelTeardownGpadl(struct hv_device *device, u32 GpadlHandle)
 
 }
 
-void GetChannelInterface(struct vmbus_channel_interface *iface)
-{
-        iface->Open = IVmbusChannelOpen;
-        iface->Close    = IVmbusChannelClose;
-        iface->SendPacket = IVmbusChannelSendPacket;
-        iface->SendPacketPageBuffer = IVmbusChannelSendPacketPageBuffer;
-        iface->SendPacketMultiPageBuffer =
-                                        IVmbusChannelSendPacketMultiPageBuffer;
-        iface->RecvPacket = IVmbusChannelRecvPacket;
-        iface->RecvPacketRaw    = IVmbusChannelRecvPacketRaw;
-        iface->EstablishGpadl = IVmbusChannelEstablishGpadl;
-        iface->TeardownGpadl = IVmbusChannelTeardownGpadl;
-        iface->GetInfo = GetChannelInfo;
-}
 
 void GetChannelInfo(struct hv_device *device, struct hv_device_info *info)
 {
@@ -150,3 +136,18 @@ void GetChannelInfo(struct hv_device *device, struct hv_device_info *info)
         info->Outbound.BytesAvailToRead = debugInfo.Outbound.BytesAvailToRead;
         info->Outbound.BytesAvailToWrite = debugInfo.Outbound.BytesAvailToWrite;
 }
+
+
+/* vmbus interface function pointer table */
+const struct vmbus_channel_interface vmbus_ops = {
+        .Open = IVmbusChannelOpen,
+        .Close = IVmbusChannelClose,
+        .SendPacket = IVmbusChannelSendPacket,
+        .SendPacketPageBuffer = IVmbusChannelSendPacketPageBuffer,
+        .SendPacketMultiPageBuffer = IVmbusChannelSendPacketMultiPageBuffer,
+        .RecvPacket = IVmbusChannelRecvPacket,
+        .RecvPacketRaw  = IVmbusChannelRecvPacketRaw,
+        .EstablishGpadl = IVmbusChannelEstablishGpadl,
+        .TeardownGpadl = IVmbusChannelTeardownGpadl,
+        .GetInfo = GetChannelInfo,
+};