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      1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
      2 /*
      3  * UUID/GUID definition
      4  *
      5  * Copyright (C) 2010, Intel Corp.
      6  *	Huang Ying <ying.huang (at) intel.com>
      7  *
      8  * This program is free software; you can redistribute it and/or
      9  * modify it under the terms of the GNU General Public License version
     10  * 2 as published by the Free Software Foundation;
     11  *
     12  * This program is distributed in the hope that it will be useful,
     13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     15  * GNU General Public License for more details.
     16  */
     17 
     18 #ifndef _UAPI_LINUX_UUID_H_
     19 #define _UAPI_LINUX_UUID_H_
     20 
     21 #include <linux/types.h>
     22 #include <linux/string.h>
     23 
     24 typedef struct {
     25 	__u8 b[16];
     26 } guid_t;
     27 
     28 #define GUID_INIT(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)			\
     29 ((guid_t)								\
     30 {{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
     31    (b) & 0xff, ((b) >> 8) & 0xff,					\
     32    (c) & 0xff, ((c) >> 8) & 0xff,					\
     33    (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
     34 
     35 /* backwards compatibility, don't use in new code */
     36 typedef guid_t uuid_le;
     37 #define UUID_LE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)		\
     38 	GUID_INIT(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)
     39 #define NULL_UUID_LE							\
     40 	UUID_LE(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00,	\
     41 	     0x00, 0x00, 0x00, 0x00)
     42 
     43 #endif /* _UAPI_LINUX_UUID_H_ */
     44