1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __LINUX_UNALIGNED_H
3 #define __LINUX_UNALIGNED_H
6 * This is the most generic implementation of unaligned accesses
7 * and should work almost anywhere.
9 #pragma GCC diagnostic push
10 #pragma GCC diagnostic ignored "-Wpacked"
11 #pragma GCC diagnostic ignored "-Wattributes"
12 #include <vdso/unaligned.h>
14 #define get_unaligned(ptr) __get_unaligned_t(typeof(*(ptr)), (ptr))
15 #define put_unaligned(val, ptr) __put_unaligned_t(typeof(*(ptr)), (val), (ptr))
17 static inline u16
get_unaligned_le16(const void *p
)
19 return le16_to_cpu(__get_unaligned_t(__le16
, p
));
22 static inline u32
get_unaligned_le32(const void *p
)
24 return le32_to_cpu(__get_unaligned_t(__le32
, p
));
27 static inline u64
get_unaligned_le64(const void *p
)
29 return le64_to_cpu(__get_unaligned_t(__le64
, p
));
32 static inline void put_unaligned_le16(u16 val
, void *p
)
34 __put_unaligned_t(__le16
, cpu_to_le16(val
), p
);
37 static inline void put_unaligned_le32(u32 val
, void *p
)
39 __put_unaligned_t(__le32
, cpu_to_le32(val
), p
);
42 static inline void put_unaligned_le64(u64 val
, void *p
)
44 __put_unaligned_t(__le64
, cpu_to_le64(val
), p
);
47 static inline u16
get_unaligned_be16(const void *p
)
49 return be16_to_cpu(__get_unaligned_t(__be16
, p
));
52 static inline u32
get_unaligned_be32(const void *p
)
54 return be32_to_cpu(__get_unaligned_t(__be32
, p
));
57 static inline u64
get_unaligned_be64(const void *p
)
59 return be64_to_cpu(__get_unaligned_t(__be64
, p
));
62 static inline void put_unaligned_be16(u16 val
, void *p
)
64 __put_unaligned_t(__be16
, cpu_to_be16(val
), p
);
67 static inline void put_unaligned_be32(u32 val
, void *p
)
69 __put_unaligned_t(__be32
, cpu_to_be32(val
), p
);
72 static inline void put_unaligned_be64(u64 val
, void *p
)
74 __put_unaligned_t(__be64
, cpu_to_be64(val
), p
);
77 static inline u32
__get_unaligned_be24(const u8
*p
)
79 return p
[0] << 16 | p
[1] << 8 | p
[2];
82 static inline u32
get_unaligned_be24(const void *p
)
84 return __get_unaligned_be24(p
);
87 static inline u32
__get_unaligned_le24(const u8
*p
)
89 return p
[0] | p
[1] << 8 | p
[2] << 16;
92 static inline u32
get_unaligned_le24(const void *p
)
94 return __get_unaligned_le24(p
);
97 static inline void __put_unaligned_be24(const u32 val
, u8
*p
)
99 *p
++ = (val
>> 16) & 0xff;
100 *p
++ = (val
>> 8) & 0xff;
104 static inline void put_unaligned_be24(const u32 val
, void *p
)
106 __put_unaligned_be24(val
, p
);
109 static inline void __put_unaligned_le24(const u32 val
, u8
*p
)
112 *p
++ = (val
>> 8) & 0xff;
113 *p
++ = (val
>> 16) & 0xff;
116 static inline void put_unaligned_le24(const u32 val
, void *p
)
118 __put_unaligned_le24(val
, p
);
121 static inline void __put_unaligned_be48(const u64 val
, u8
*p
)
123 *p
++ = (val
>> 40) & 0xff;
124 *p
++ = (val
>> 32) & 0xff;
125 *p
++ = (val
>> 24) & 0xff;
126 *p
++ = (val
>> 16) & 0xff;
127 *p
++ = (val
>> 8) & 0xff;
131 static inline void put_unaligned_be48(const u64 val
, void *p
)
133 __put_unaligned_be48(val
, p
);
136 static inline u64
__get_unaligned_be48(const u8
*p
)
138 return (u64
)p
[0] << 40 | (u64
)p
[1] << 32 | (u64
)p
[2] << 24 |
139 p
[3] << 16 | p
[4] << 8 | p
[5];
142 static inline u64
get_unaligned_be48(const void *p
)
144 return __get_unaligned_be48(p
);
146 #pragma GCC diagnostic pop
148 #endif /* __LINUX_UNALIGNED_H */