82 static inline uint32_t lfs_max(uint32_t a, uint32_t b)  in lfs_max()  argument
84 	return (a > b) ? a : b;  in lfs_max()
87 static inline uint32_t lfs_min(uint32_t a, uint32_t b)  in lfs_min()  argument
89 	return (a < b) ? a : b;  in lfs_min()
93 static inline uint32_t lfs_aligndown(uint32_t a, uint32_t alignment)  in lfs_aligndown()  argument
95 	return a - (a % alignment);  in lfs_aligndown()
98 static inline uint32_t lfs_alignup(uint32_t a, uint32_t alignment)  in lfs_alignup()  argument
100 	return lfs_aligndown(a + alignment-1, alignment);  in lfs_alignup()
104 static inline uint32_t lfs_npw2(uint32_t a)  in lfs_npw2()  argument
107 	return 32 - __builtin_clz(a-1);  in lfs_npw2()
112 	a -= 1;  in lfs_npw2()
113 	s = (a > 0xffff) << 4; a >>= s; r |= s;  in lfs_npw2()
114 	s = (a > 0xff) << 3; a >>= s; r |= s;  in lfs_npw2()
115 	s = (a > 0xf) << 2; a >>= s; r |= s;  in lfs_npw2()
116 	s = (a > 0x3) << 1; a >>= s; r |= s;  in lfs_npw2()
117 	return (r | (a >> 1)) + 1;  in lfs_npw2()
123 static inline uint32_t lfs_ctz(uint32_t a)  in lfs_ctz()  argument
126 	return __builtin_ctz(a);  in lfs_ctz()
128 	return lfs_npw2((a & -a) + 1) - 1;  in lfs_ctz()
133 static inline uint32_t lfs_popc(uint32_t a)  in lfs_popc()  argument
136 	return __builtin_popcount(a);  in lfs_popc()
138 	a = a - ((a >> 1) & 0x55555555);  in lfs_popc()
139 	a = (a & 0x33333333) + ((a >> 2) & 0x33333333);  in lfs_popc()
140 	return (((a + (a >> 4)) & 0xf0f0f0f) * 0x1010101) >> 24;  in lfs_popc()
146 static inline int lfs_scmp(uint32_t a, uint32_t b)  in lfs_scmp()  argument
148 	return (int)(unsigned int)(a - b);  in lfs_scmp()
152 static inline uint32_t lfs_fromle32(uint32_t a)  in lfs_fromle32()  argument
155 	return a;  in lfs_fromle32()
157 	return __builtin_bswap32(a);  in lfs_fromle32()
159 	return (((uint8_t *)&a)[0] <<  0) |  in lfs_fromle32()
160 	       (((uint8_t *)&a)[1] <<  8) |  in lfs_fromle32()
161 	       (((uint8_t *)&a)[2] << 16) |  in lfs_fromle32()
162 	       (((uint8_t *)&a)[3] << 24);  in lfs_fromle32()
166 static inline uint32_t lfs_tole32(uint32_t a)  in lfs_tole32()  argument
168 	return lfs_fromle32(a);  in lfs_tole32()
172 static inline uint32_t lfs_frombe32(uint32_t a)  in lfs_frombe32()  argument
175 	return a;  in lfs_frombe32()
177 	return __builtin_bswap32(a);  in lfs_frombe32()
179 	return (((uint8_t *)&a)[0] << 24) |  in lfs_frombe32()
180 	       (((uint8_t *)&a)[1] << 16) |  in lfs_frombe32()
181 	       (((uint8_t *)&a)[2] <<  8) |  in lfs_frombe32()
182 	       (((uint8_t *)&a)[3] <<  0);  in lfs_frombe32()
186 static inline uint32_t lfs_tobe32(uint32_t a)  in lfs_tobe32()  argument
188 	return lfs_frombe32(a);  in lfs_tobe32()