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Greg Kroah-Hartmanb2441312017-11-01 15:07:57 +01001/* SPDX-License-Identifier: GPL-2.0 */
Harvey Harrison064106a2008-04-29 01:03:27 -07002#ifndef _LINUX_UNALIGNED_LE_BYTESHIFT_H
3#define _LINUX_UNALIGNED_LE_BYTESHIFT_H
4
Albin Tonnerre2fa43412009-09-23 15:57:38 -07005#include <linux/types.h>
Harvey Harrison064106a2008-04-29 01:03:27 -07006
7static inline u16 __get_unaligned_le16(const u8 *p)
8{
9 return p[0] | p[1] << 8;
10}
11
12static inline u32 __get_unaligned_le32(const u8 *p)
13{
14 return p[0] | p[1] << 8 | p[2] << 16 | p[3] << 24;
15}
16
17static inline u64 __get_unaligned_le64(const u8 *p)
18{
19 return (u64)__get_unaligned_le32(p + 4) << 32 |
20 __get_unaligned_le32(p);
21}
22
23static inline void __put_unaligned_le16(u16 val, u8 *p)
24{
25 *p++ = val;
26 *p++ = val >> 8;
27}
28
29static inline void __put_unaligned_le32(u32 val, u8 *p)
30{
31 __put_unaligned_le16(val >> 16, p + 2);
32 __put_unaligned_le16(val, p);
33}
34
35static inline void __put_unaligned_le64(u64 val, u8 *p)
36{
37 __put_unaligned_le32(val >> 32, p + 4);
38 __put_unaligned_le32(val, p);
39}
40
41static inline u16 get_unaligned_le16(const void *p)
42{
43 return __get_unaligned_le16((const u8 *)p);
44}
45
46static inline u32 get_unaligned_le32(const void *p)
47{
48 return __get_unaligned_le32((const u8 *)p);
49}
50
51static inline u64 get_unaligned_le64(const void *p)
52{
53 return __get_unaligned_le64((const u8 *)p);
54}
55
56static inline void put_unaligned_le16(u16 val, void *p)
57{
58 __put_unaligned_le16(val, p);
59}
60
61static inline void put_unaligned_le32(u32 val, void *p)
62{
63 __put_unaligned_le32(val, p);
64}
65
66static inline void put_unaligned_le64(u64 val, void *p)
67{
68 __put_unaligned_le64(val, p);
69}
70
71#endif /* _LINUX_UNALIGNED_LE_BYTESHIFT_H */