Staging: unisys: Remove isServer arg from init_vbus_channel()

The init_vbus_channel() function is never called with the isServer
argument equal to TRUE, so just get rid of the argument altogether.
This also means that the code in the function that would be executed
in the server case can be removed since it is never executed.
Signed-off-by: NKen Cox <jkc@redhat.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/unisys/uislib/uislib.c

@@ -129,7 +129,7 @@ init_msg_header(CONTROLVM_MESSAGE *msg, U32 id, uint rsp, uint svr)
 }
 
 static __iomem void *
-init_vbus_channel(U64 channelAddr, U32 channelBytes, int isServer)
+init_vbus_channel(U64 channelAddr, U32 channelBytes)
 {
 	void __iomem *rc = NULL;
 	void __iomem *pChan = uislib_ioremap_cache(channelAddr, channelBytes);
@@ -140,22 +140,11 @@ init_vbus_channel(U64 channelAddr, U32 channelBytes, int isServer)
 		rc = NULL;
 		goto Away;
 	}
-	if (isServer) {
-		memset_io(pChan, 0, channelBytes);
-		if (!ULTRA_VBUS_CHANNEL_OK_SERVER(channelBytes, NULL)) {
-			ERRDRV("%s channel cannot be used", __func__);
-			uislib_iounmap(pChan);
-			rc = NULL;
-			goto Away;
-		}
-		ultra_vbus_init_channel(pChan, channelBytes);
-	} else {
-		if (!ULTRA_VBUS_CHANNEL_OK_CLIENT(pChan, NULL)) {
-			ERRDRV("%s channel cannot be used", __func__);
-			uislib_iounmap(pChan);
-			rc = NULL;
-			goto Away;
-		}
+	if (!ULTRA_VBUS_CHANNEL_OK_CLIENT(pChan, NULL)) {
+		ERRDRV("%s channel cannot be used", __func__);
+		uislib_iounmap(pChan);
+		rc = NULL;
+		goto Away;
 	}
 	rc = pChan;
 Away:
@@ -235,8 +224,7 @@ create_bus(CONTROLVM_MESSAGE *msg, char *buf)
 		bus->busChannelBytes = msg->cmd.createBus.channelBytes;
 		bus->pBusChannel =
 		    init_vbus_channel(msg->cmd.createBus.channelAddr,
-				      msg->cmd.createBus.channelBytes,
-				      msg->hdr.Flags.server);
+				      msg->cmd.createBus.channelBytes);
 	}
 	/* the msg is bound for virtpci; send guest_msgs struct to callback */
 	if (!msg->hdr.Flags.server) {