--- xnu/xnu-1228/iokit/Kernel/IOEventSource.cpp
+++ xnu/xnu-201.19/iokit/Kernel/IOEventSource.cpp
@@ -1,29 +1,23 @@
 /*
  * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ * @APPLE_LICENSE_HEADER_START@
  * 
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. The rights granted to you under the License
- * may not be used to create, or enable the creation or redistribution of,
- * unlawful or unlicensed copies of an Apple operating system, or to
- * circumvent, violate, or enable the circumvention or violation of, any
- * terms of an Apple operating system software license agreement.
+ * The contents of this file constitute Original Code as defined in and
+ * are subject to the Apple Public Source License Version 1.1 (the
+ * "License").  You may not use this file except in compliance with the
+ * License.  Please obtain a copy of the License at
+ * http://www.apple.com/publicsource and read it before using this file.
  * 
- * Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this file.
- * 
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * This Original Code and all software distributed under the License are
+ * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
  * 
- * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ * @APPLE_LICENSE_HEADER_END@
  */
 /*
 Copyright (c) 1998 Apple Computer, Inc.  All rights reserved.
@@ -49,18 +43,8 @@
 OSMetaClassDefineReservedUnused(IOEventSource, 6);
 OSMetaClassDefineReservedUnused(IOEventSource, 7);
 
-/* inline function implementations */
-void IOEventSource::signalWorkAvailable()	{ workLoop->signalWorkAvailable(); }
-void IOEventSource::openGate()			{ workLoop->openGate(); }
-void IOEventSource::closeGate()			{ workLoop->closeGate(); }
-bool IOEventSource::tryCloseGate()		{ return workLoop->tryCloseGate(); }
-int IOEventSource::sleepGate(void *event, UInt32 type)
-        { return workLoop->sleepGate(event, type); }
-void IOEventSource::wakeupGate(void *event, bool oneThread)
-        { workLoop->wakeupGate(event, oneThread); }
-
 bool IOEventSource::init(OSObject *inOwner,
-                         Action inAction)
+                         Action inAction = 0)
 {
     if (!inOwner)
         return false;