diff options
Diffstat (limited to 'include/linux/swab.h')
-rw-r--r-- | include/linux/swab.h | 52 |
1 files changed, 26 insertions, 26 deletions
diff --git a/include/linux/swab.h b/include/linux/swab.h index bbed279f3b32..be5284d4a053 100644 --- a/include/linux/swab.h +++ b/include/linux/swab.h | |||
@@ -9,17 +9,17 @@ | |||
9 | * casts are necessary for constants, because we never know how for sure | 9 | * casts are necessary for constants, because we never know how for sure |
10 | * how U/UL/ULL map to __u16, __u32, __u64. At least not in a portable way. | 10 | * how U/UL/ULL map to __u16, __u32, __u64. At least not in a portable way. |
11 | */ | 11 | */ |
12 | #define __const_swab16(x) ((__u16)( \ | 12 | #define ___constant_swab16(x) ((__u16)( \ |
13 | (((__u16)(x) & (__u16)0x00ffU) << 8) | \ | 13 | (((__u16)(x) & (__u16)0x00ffU) << 8) | \ |
14 | (((__u16)(x) & (__u16)0xff00U) >> 8))) | 14 | (((__u16)(x) & (__u16)0xff00U) >> 8))) |
15 | 15 | ||
16 | #define __const_swab32(x) ((__u32)( \ | 16 | #define ___constant_swab32(x) ((__u32)( \ |
17 | (((__u32)(x) & (__u32)0x000000ffUL) << 24) | \ | 17 | (((__u32)(x) & (__u32)0x000000ffUL) << 24) | \ |
18 | (((__u32)(x) & (__u32)0x0000ff00UL) << 8) | \ | 18 | (((__u32)(x) & (__u32)0x0000ff00UL) << 8) | \ |
19 | (((__u32)(x) & (__u32)0x00ff0000UL) >> 8) | \ | 19 | (((__u32)(x) & (__u32)0x00ff0000UL) >> 8) | \ |
20 | (((__u32)(x) & (__u32)0xff000000UL) >> 24))) | 20 | (((__u32)(x) & (__u32)0xff000000UL) >> 24))) |
21 | 21 | ||
22 | #define __const_swab64(x) ((__u64)( \ | 22 | #define ___constant_swab64(x) ((__u64)( \ |
23 | (((__u64)(x) & (__u64)0x00000000000000ffULL) << 56) | \ | 23 | (((__u64)(x) & (__u64)0x00000000000000ffULL) << 56) | \ |
24 | (((__u64)(x) & (__u64)0x000000000000ff00ULL) << 40) | \ | 24 | (((__u64)(x) & (__u64)0x000000000000ff00ULL) << 40) | \ |
25 | (((__u64)(x) & (__u64)0x0000000000ff0000ULL) << 24) | \ | 25 | (((__u64)(x) & (__u64)0x0000000000ff0000ULL) << 24) | \ |
@@ -29,11 +29,11 @@ | |||
29 | (((__u64)(x) & (__u64)0x00ff000000000000ULL) >> 40) | \ | 29 | (((__u64)(x) & (__u64)0x00ff000000000000ULL) >> 40) | \ |
30 | (((__u64)(x) & (__u64)0xff00000000000000ULL) >> 56))) | 30 | (((__u64)(x) & (__u64)0xff00000000000000ULL) >> 56))) |
31 | 31 | ||
32 | #define __const_swahw32(x) ((__u32)( \ | 32 | #define ___constant_swahw32(x) ((__u32)( \ |
33 | (((__u32)(x) & (__u32)0x0000ffffUL) << 16) | \ | 33 | (((__u32)(x) & (__u32)0x0000ffffUL) << 16) | \ |
34 | (((__u32)(x) & (__u32)0xffff0000UL) >> 16))) | 34 | (((__u32)(x) & (__u32)0xffff0000UL) >> 16))) |
35 | 35 | ||
36 | #define __const_swahb32(x) ((__u32)( \ | 36 | #define ___constant_swahb32(x) ((__u32)( \ |
37 | (((__u32)(x) & (__u32)0x00ff00ffUL) << 8) | \ | 37 | (((__u32)(x) & (__u32)0x00ff00ffUL) << 8) | \ |
38 | (((__u32)(x) & (__u32)0xff00ff00UL) >> 8))) | 38 | (((__u32)(x) & (__u32)0xff00ff00UL) >> 8))) |
39 | 39 | ||
@@ -43,52 +43,52 @@ | |||
43 | * ___swab16, ___swab32, ___swab64, ___swahw32, ___swahb32 | 43 | * ___swab16, ___swab32, ___swab64, ___swahw32, ___swahb32 |
44 | */ | 44 | */ |
45 | 45 | ||
46 | static inline __attribute_const__ __u16 ___swab16(__u16 val) | 46 | static inline __attribute_const__ __u16 __fswab16(__u16 val) |
47 | { | 47 | { |
48 | #ifdef __arch_swab16 | 48 | #ifdef __arch_swab16 |
49 | return __arch_swab16(val); | 49 | return __arch_swab16(val); |
50 | #else | 50 | #else |
51 | return __const_swab16(val); | 51 | return ___constant_swab16(val); |
52 | #endif | 52 | #endif |
53 | } | 53 | } |
54 | 54 | ||
55 | static inline __attribute_const__ __u32 ___swab32(__u32 val) | 55 | static inline __attribute_const__ __u32 __fswab32(__u32 val) |
56 | { | 56 | { |
57 | #ifdef __arch_swab32 | 57 | #ifdef __arch_swab32 |
58 | return __arch_swab32(val); | 58 | return __arch_swab32(val); |
59 | #else | 59 | #else |
60 | return __const_swab32(val); | 60 | return ___constant_swab32(val); |
61 | #endif | 61 | #endif |
62 | } | 62 | } |
63 | 63 | ||
64 | static inline __attribute_const__ __u64 ___swab64(__u64 val) | 64 | static inline __attribute_const__ __u64 __fswab64(__u64 val) |
65 | { | 65 | { |
66 | #ifdef __arch_swab64 | 66 | #ifdef __arch_swab64 |
67 | return __arch_swab64(val); | 67 | return __arch_swab64(val); |
68 | #elif defined(__SWAB_64_THRU_32__) | 68 | #elif defined(__SWAB_64_THRU_32__) |
69 | __u32 h = val >> 32; | 69 | __u32 h = val >> 32; |
70 | __u32 l = val & ((1ULL << 32) - 1); | 70 | __u32 l = val & ((1ULL << 32) - 1); |
71 | return (((__u64)___swab32(l)) << 32) | ((__u64)(___swab32(h))); | 71 | return (((__u64)__fswab32(l)) << 32) | ((__u64)(__fswab32(h))); |
72 | #else | 72 | #else |
73 | return __const_swab64(val); | 73 | return ___constant_swab64(val); |
74 | #endif | 74 | #endif |
75 | } | 75 | } |
76 | 76 | ||
77 | static inline __attribute_const__ __u32 ___swahw32(__u32 val) | 77 | static inline __attribute_const__ __u32 __fswahw32(__u32 val) |
78 | { | 78 | { |
79 | #ifdef __arch_swahw32 | 79 | #ifdef __arch_swahw32 |
80 | return __arch_swahw32(val); | 80 | return __arch_swahw32(val); |
81 | #else | 81 | #else |
82 | return __const_swahw32(val); | 82 | return ___constant_swahw32(val); |
83 | #endif | 83 | #endif |
84 | } | 84 | } |
85 | 85 | ||
86 | static inline __attribute_const__ __u32 ___swahb32(__u32 val) | 86 | static inline __attribute_const__ __u32 __fswahb32(__u32 val) |
87 | { | 87 | { |
88 | #ifdef __arch_swahb32 | 88 | #ifdef __arch_swahb32 |
89 | return __arch_swahb32(val); | 89 | return __arch_swahb32(val); |
90 | #else | 90 | #else |
91 | return __const_swahb32(val); | 91 | return ___constant_swahb32(val); |
92 | #endif | 92 | #endif |
93 | } | 93 | } |
94 | 94 | ||
@@ -98,8 +98,8 @@ static inline __attribute_const__ __u32 ___swahb32(__u32 val) | |||
98 | */ | 98 | */ |
99 | #define __swab16(x) \ | 99 | #define __swab16(x) \ |
100 | (__builtin_constant_p((__u16)(x)) ? \ | 100 | (__builtin_constant_p((__u16)(x)) ? \ |
101 | __const_swab16((x)) : \ | 101 | ___constant_swab16(x) : \ |
102 | ___swab16((x))) | 102 | __fswab16(x)) |
103 | 103 | ||
104 | /** | 104 | /** |
105 | * __swab32 - return a byteswapped 32-bit value | 105 | * __swab32 - return a byteswapped 32-bit value |
@@ -107,8 +107,8 @@ static inline __attribute_const__ __u32 ___swahb32(__u32 val) | |||
107 | */ | 107 | */ |
108 | #define __swab32(x) \ | 108 | #define __swab32(x) \ |
109 | (__builtin_constant_p((__u32)(x)) ? \ | 109 | (__builtin_constant_p((__u32)(x)) ? \ |
110 | __const_swab32((x)) : \ | 110 | ___constant_swab32(x) : \ |
111 | ___swab32((x))) | 111 | __fswab32(x)) |
112 | 112 | ||
113 | /** | 113 | /** |
114 | * __swab64 - return a byteswapped 64-bit value | 114 | * __swab64 - return a byteswapped 64-bit value |
@@ -116,8 +116,8 @@ static inline __attribute_const__ __u32 ___swahb32(__u32 val) | |||
116 | */ | 116 | */ |
117 | #define __swab64(x) \ | 117 | #define __swab64(x) \ |
118 | (__builtin_constant_p((__u64)(x)) ? \ | 118 | (__builtin_constant_p((__u64)(x)) ? \ |
119 | __const_swab64((x)) : \ | 119 | ___constant_swab64(x) : \ |
120 | ___swab64((x))) | 120 | __fswab64(x)) |
121 | 121 | ||
122 | /** | 122 | /** |
123 | * __swahw32 - return a word-swapped 32-bit value | 123 | * __swahw32 - return a word-swapped 32-bit value |
@@ -127,8 +127,8 @@ static inline __attribute_const__ __u32 ___swahb32(__u32 val) | |||
127 | */ | 127 | */ |
128 | #define __swahw32(x) \ | 128 | #define __swahw32(x) \ |
129 | (__builtin_constant_p((__u32)(x)) ? \ | 129 | (__builtin_constant_p((__u32)(x)) ? \ |
130 | __const_swahw32((x)) : \ | 130 | ___constant_swahw32(x) : \ |
131 | ___swahw32((x))) | 131 | __fswahw32(x)) |
132 | 132 | ||
133 | /** | 133 | /** |
134 | * __swahb32 - return a high and low byte-swapped 32-bit value | 134 | * __swahb32 - return a high and low byte-swapped 32-bit value |
@@ -138,8 +138,8 @@ static inline __attribute_const__ __u32 ___swahb32(__u32 val) | |||
138 | */ | 138 | */ |
139 | #define __swahb32(x) \ | 139 | #define __swahb32(x) \ |
140 | (__builtin_constant_p((__u32)(x)) ? \ | 140 | (__builtin_constant_p((__u32)(x)) ? \ |
141 | __const_swahb32((x)) : \ | 141 | ___constant_swahb32(x) : \ |
142 | ___swahb32((x))) | 142 | __fswahb32(x)) |
143 | 143 | ||
144 | /** | 144 | /** |
145 | * __swab16p - return a byteswapped 16-bit value from a pointer | 145 | * __swab16p - return a byteswapped 16-bit value from a pointer |