16 #define __bswap_constant_16( value ) \ 17 ( ( ( (value) & 0x00ff ) << 8 ) | \ 18 ( ( (value) & 0xff00 ) >> 8 ) ) 26 #define __bswap_constant_32( value ) \ 27 ( ( ( (value) & 0x000000ffUL ) << 24 ) | \ 28 ( ( (value) & 0x0000ff00UL ) << 8 ) | \ 29 ( ( (value) & 0x00ff0000UL ) >> 8 ) | \ 30 ( ( (value) & 0xff000000UL ) >> 24 ) ) 38 #define __bswap_constant_64( value ) \ 39 ( ( ( (value) & 0x00000000000000ffULL ) << 56 ) | \ 40 ( ( (value) & 0x000000000000ff00ULL ) << 40 ) | \ 41 ( ( (value) & 0x0000000000ff0000ULL ) << 24 ) | \ 42 ( ( (value) & 0x00000000ff000000ULL ) << 8 ) | \ 43 ( ( (value) & 0x000000ff00000000ULL ) >> 8 ) | \ 44 ( ( (value) & 0x0000ff0000000000ULL ) >> 24 ) | \ 45 ( ( (value) & 0x00ff000000000000ULL ) >> 40 ) | \ 46 ( ( (value) & 0xff00000000000000ULL ) >> 56 ) ) 54 #define __bswap_16( value ) \ 55 ( __builtin_constant_p (value) ? \ 56 ( ( uint16_t ) __bswap_constant_16 ( ( uint16_t ) (value) ) ) \ 57 : __bswap_variable_16 (value) ) 58 #define bswap_16( value ) __bswap_16 (value) 66 #define __bswap_32( value ) \ 67 ( __builtin_constant_p (value) ? \ 68 ( ( uint32_t ) __bswap_constant_32 ( ( uint32_t ) (value) ) ) \ 69 : __bswap_variable_32 (value) ) 70 #define bswap_32( value ) __bswap_32 (value) 78 #define __bswap_64( value ) \ 79 ( __builtin_constant_p (value) ? \ 80 ( ( uint64_t ) __bswap_constant_64 ( ( uint64_t ) (value) ) ) \ 81 : __bswap_variable_64 (value) ) 82 #define bswap_64( value ) __bswap_64 (value) 84 #if __BYTE_ORDER == __LITTLE_ENDIAN 85 #define __cpu_to_leNN( bits, value ) (value) 86 #define __cpu_to_beNN( bits, value ) __bswap_ ## bits (value) 87 #define __leNN_to_cpu( bits, value ) (value) 88 #define __beNN_to_cpu( bits, value ) __bswap_ ## bits (value) 89 #define __cpu_to_leNNs( bits, ptr ) do { } while ( 0 ) 90 #define __cpu_to_beNNs( bits, ptr ) __bswap_ ## bits ## s (ptr) 91 #define __leNN_to_cpus( bits, ptr ) do { } while ( 0 ) 92 #define __beNN_to_cpus( bits, ptr ) __bswap_ ## bits ## s (ptr) 95 #if __BYTE_ORDER == __BIG_ENDIAN 96 #define __cpu_to_leNN( bits, value ) __bswap_ ## bits (value) 97 #define __cpu_to_beNN( bits, value ) (value) 98 #define __leNN_to_cpu( bits, value ) __bswap_ ## bits (value) 99 #define __beNN_to_cpu( bits, value ) (value) 100 #define __cpu_to_leNNs( bits, ptr ) __bswap_ ## bits ## s (ptr) 101 #define __cpu_to_beNNs( bits, ptr ) do { } while ( 0 ) 102 #define __leNN_to_cpus( bits, ptr ) __bswap_ ## bits ## s (ptr) 103 #define __beNN_to_cpus( bits, ptr ) do { } while ( 0 ) 106 #define cpu_to_le16( value ) __cpu_to_leNN ( 16, value ) 107 #define cpu_to_le32( value ) __cpu_to_leNN ( 32, value ) 108 #define cpu_to_le64( value ) __cpu_to_leNN ( 64, value ) 109 #define cpu_to_be16( value ) __cpu_to_beNN ( 16, value ) 110 #define cpu_to_be32( value ) __cpu_to_beNN ( 32, value ) 111 #define cpu_to_be64( value ) __cpu_to_beNN ( 64, value ) 112 #define le16_to_cpu( value ) __leNN_to_cpu ( 16, value ) 113 #define le32_to_cpu( value ) __leNN_to_cpu ( 32, value ) 114 #define le64_to_cpu( value ) __leNN_to_cpu ( 64, value ) 115 #define be16_to_cpu( value ) __beNN_to_cpu ( 16, value ) 116 #define be32_to_cpu( value ) __beNN_to_cpu ( 32, value ) 117 #define be64_to_cpu( value ) __beNN_to_cpu ( 64, value ) 118 #define cpu_to_le16s( ptr ) __cpu_to_leNNs ( 16, ptr ) 119 #define cpu_to_le32s( ptr ) __cpu_to_leNNs ( 32, ptr ) 120 #define cpu_to_le64s( ptr ) __cpu_to_leNNs ( 64, ptr ) 121 #define cpu_to_be16s( ptr ) __cpu_to_beNNs ( 16, ptr ) 122 #define cpu_to_be32s( ptr ) __cpu_to_beNNs ( 32, ptr ) 123 #define cpu_to_be64s( ptr ) __cpu_to_beNNs ( 64, ptr ) 124 #define le16_to_cpus( ptr ) __leNN_to_cpus ( 16, ptr ) 125 #define le32_to_cpus( ptr ) __leNN_to_cpus ( 32, ptr ) 126 #define le64_to_cpus( ptr ) __leNN_to_cpus ( 64, ptr ) 127 #define be16_to_cpus( ptr ) __beNN_to_cpus ( 16, ptr ) 128 #define be32_to_cpus( ptr ) __beNN_to_cpus ( 32, ptr ) 129 #define be64_to_cpus( ptr ) __beNN_to_cpus ( 64, ptr ) 131 #define htonll( value ) cpu_to_be64 (value) 132 #define ntohll( value ) be64_to_cpu (value) 133 #define htonl( value ) cpu_to_be32 (value) 134 #define ntohl( value ) be32_to_cpu (value) 135 #define htons( value ) cpu_to_be16 (value) 136 #define ntohs( value ) be16_to_cpu (value)
FILE_LICENCE(GPL2_OR_LATER_OR_UBDL)
Byte-order swapping functions.