--- xnu/xnu-12377.121.6/iokit/DriverKit/IOBufferMemoryDescriptor.iig
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * Copyright (c) 2019-2019 Apple Inc. All rights reserved.
- *
- * @APPLE_OSREFERENCE_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.
- *
- * 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
- * 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.
- *
- * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
- */
-
-#if !__IIG
-#if KERNEL
-#include <IOKit/IOBufferMemoryDescriptor.h>
-#endif
-#endif
-
-
-#ifndef _IOKIT_UIOBUFFERMEMORYDESCRIPTOR_H
-#define _IOKIT_UIOBUFFERMEMORYDESCRIPTOR_H
-
-#include <DriverKit/IOMemoryDescriptor.iig>
-
-/*!
- * @class IOBufferMemoryDescriptor
- *
- * @abstract
- * IOBufferMemoryDescriptor describes a memory buffer allocated in the callers address space.
- *
- * @discussion
- * To allocate memory for I/O or sharing, use IOBufferMemoryDescriptor::Create().
- * IOBufferMemoryDescriptor can be handed to any API that expects an IOMemoryDescriptor.
- */
-
-class KERNEL IOBufferMemoryDescriptor : public IOMemoryDescriptor
-{
-public:
-
-    /*!
-     * @brief       Create an IOBufferMemoryDescriptor.
-     * @param       options Pass the flags 	kIOMemoryDirectionIn, kIOMemoryDirectionOut or kIOMemoryDirectionOutIn
-     *              to set the direction of the i/o
-     * @param       capacity Maximum length of the memory buffer. The descriptor has no valid data
-     *              and zero length until set with SetLength().
-     * @param       memory Created descriptor with +1 retain count to be released by the caller.
-     * @param       alignment For small less-than-page-size buffers, control the alignment of the memory buffer.
-     *              Pass zero for no guaranteed alignment.
-     * @return      kIOReturnSuccess on success. See IOReturn.h for error codes.
-     */
-	static kern_return_t
-	Create(
-		uint64_t options,
-		uint64_t capacity,
-		uint64_t alignment,
-		IOBufferMemoryDescriptor ** memory);
-
-	virtual bool
-	init() override;
-
-	virtual void
-	free() override;
-
-    /*!
-     * @brief       Obtain the address and length of the memory buffer.
-     * @param       range An IOAddressSegment structure filled out with the address and length of the memory buffer.
-     * @return      kIOReturnSuccess on success. See IOReturn.h for error codes.
-     */
-	kern_return_t
-	GetAddressRange(IOAddressSegment * range) LOCALONLY;
-
-    /*!
-     * @brief       Set the valid length of the memory buffer.
-     * @discussion  IOBufferMemoryDescriptor have capacity allocated at Create() but no valid data until set
-     *              with this method.
-     * @param       length New valid length of the memory described.
-     * @return      kIOReturnSuccess on success. See IOReturn.h for error codes.
-     */
-	virtual kern_return_t
-	SetLength(uint64_t length);
-};
-
-#endif /* ! _IOKIT_UIOBUFFERMEMORYDESCRIPTOR_H */