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ACPI: fix acpi_find_child_device() invocation in acpi_preset_companion()
[mirror_ubuntu-bionic-kernel.git] / include / linux / stddef.h
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b2441318 1/* SPDX-License-Identifier: GPL-2.0 */
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2#ifndef _LINUX_STDDEF_H
3#define _LINUX_STDDEF_H
4
607ca46e 5#include <uapi/linux/stddef.h>
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6
7#undef NULL
1da177e4 8#define NULL ((void *)0)
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9
10enum {
11 false = 0,
12 true = 1
13};
14
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15#undef offsetof
16#ifdef __compiler_offsetof
8c7fbe57 17#define offsetof(TYPE, MEMBER) __compiler_offsetof(TYPE, MEMBER)
1da177e4 18#else
8c7fbe57 19#define offsetof(TYPE, MEMBER) ((size_t)&((TYPE *)0)->MEMBER)
1da177e4 20#endif
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21
22/**
23 * offsetofend(TYPE, MEMBER)
24 *
25 * @TYPE: The type of the structure
26 * @MEMBER: The member within the structure to get the end offset of
27 */
28#define offsetofend(TYPE, MEMBER) \
29 (offsetof(TYPE, MEMBER) + sizeof(((TYPE *)0)->MEMBER))
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30
31#endif