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Linux/tools/include/tools/le_byteshift.h

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  1 /* SPDX-License-Identifier: GPL-2.0 */
  2 #ifndef _TOOLS_LE_BYTESHIFT_H
  3 #define _TOOLS_LE_BYTESHIFT_H
  4 
  5 #include <stdint.h>
  6 
  7 static inline uint16_t __get_unaligned_le16(const uint8_t *p)
  8 {
  9         return p[0] | p[1] << 8;
 10 }
 11 
 12 static inline uint32_t __get_unaligned_le32(const uint8_t *p)
 13 {
 14         return p[0] | p[1] << 8 | p[2] << 16 | p[3] << 24;
 15 }
 16 
 17 static inline uint64_t __get_unaligned_le64(const uint8_t *p)
 18 {
 19         return (uint64_t)__get_unaligned_le32(p + 4) << 32 |
 20                __get_unaligned_le32(p);
 21 }
 22 
 23 static inline void __put_unaligned_le16(uint16_t val, uint8_t *p)
 24 {
 25         *p++ = val;
 26         *p++ = val >> 8;
 27 }
 28 
 29 static inline void __put_unaligned_le32(uint32_t val, uint8_t *p)
 30 {
 31         __put_unaligned_le16(val >> 16, p + 2);
 32         __put_unaligned_le16(val, p);
 33 }
 34 
 35 static inline void __put_unaligned_le64(uint64_t val, uint8_t *p)
 36 {
 37         __put_unaligned_le32(val >> 32, p + 4);
 38         __put_unaligned_le32(val, p);
 39 }
 40 
 41 static inline uint16_t get_unaligned_le16(const void *p)
 42 {
 43         return __get_unaligned_le16((const uint8_t *)p);
 44 }
 45 
 46 static inline uint32_t get_unaligned_le32(const void *p)
 47 {
 48         return __get_unaligned_le32((const uint8_t *)p);
 49 }
 50 
 51 static inline uint64_t get_unaligned_le64(const void *p)
 52 {
 53         return __get_unaligned_le64((const uint8_t *)p);
 54 }
 55 
 56 static inline void put_unaligned_le16(uint16_t val, void *p)
 57 {
 58         __put_unaligned_le16(val, p);
 59 }
 60 
 61 static inline void put_unaligned_le32(uint32_t val, void *p)
 62 {
 63         __put_unaligned_le32(val, p);
 64 }
 65 
 66 static inline void put_unaligned_le64(uint64_t val, void *p)
 67 {
 68         __put_unaligned_le64(val, p);
 69 }
 70 
 71 #endif /* _TOOLS_LE_BYTESHIFT_H */
 72 

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