108 static inline uint32_t lfs_max(uint32_t a, uint32_t b) {  in lfs_max()  argument
109     return (a > b) ? a : b;  in lfs_max()
112 static inline uint32_t lfs_min(uint32_t a, uint32_t b) {  in lfs_min()  argument
113     return (a < b) ? a : b;  in lfs_min()
117 static inline uint32_t lfs_aligndown(uint32_t a, uint32_t alignment) {  in lfs_aligndown()  argument
118     return a - (a % alignment);  in lfs_aligndown()
121 static inline uint32_t lfs_alignup(uint32_t a, uint32_t alignment) {  in lfs_alignup()  argument
122     return lfs_aligndown(a + alignment-1, alignment);  in lfs_alignup()
126 static inline uint32_t lfs_npw2(uint32_t a) {  in lfs_npw2()  argument
128     return 32 - __builtin_clz(a-1);  in lfs_npw2()
132     a -= 1;  in lfs_npw2()
133     s = (a > 0xffff) << 4; a >>= s; r |= s;  in lfs_npw2()
134     s = (a > 0xff  ) << 3; a >>= s; r |= s;  in lfs_npw2()
135     s = (a > 0xf   ) << 2; a >>= s; r |= s;  in lfs_npw2()
136     s = (a > 0x3   ) << 1; a >>= s; r |= s;  in lfs_npw2()
137     return (r | (a >> 1)) + 1;  in lfs_npw2()
143 static inline uint32_t lfs_ctz(uint32_t a) {  in lfs_ctz()  argument
145     return __builtin_ctz(a);  in lfs_ctz()
147     return lfs_npw2((a & -a) + 1) - 1;  in lfs_ctz()
152 static inline uint32_t lfs_popc(uint32_t a) {  in lfs_popc()  argument
154     return __builtin_popcount(a);  in lfs_popc()
156     a = a - ((a >> 1) & 0x55555555);  in lfs_popc()
157     a = (a & 0x33333333) + ((a >> 2) & 0x33333333);  in lfs_popc()
158     return (((a + (a >> 4)) & 0xf0f0f0f) * 0x1010101) >> 24;  in lfs_popc()
164 static inline int lfs_scmp(uint32_t a, uint32_t b) {  in lfs_scmp()  argument
165     return (int)(unsigned)(a - b);  in lfs_scmp()
169 static inline uint32_t lfs_fromle32(uint32_t a) {  in lfs_fromle32()  argument
173     return a;  in lfs_fromle32()
178     return __builtin_bswap32(a);  in lfs_fromle32()
180     return (((uint8_t*)&a)[0] <<  0) |  in lfs_fromle32()
181            (((uint8_t*)&a)[1] <<  8) |  in lfs_fromle32()
182            (((uint8_t*)&a)[2] << 16) |  in lfs_fromle32()
183            (((uint8_t*)&a)[3] << 24);  in lfs_fromle32()
187 static inline uint32_t lfs_tole32(uint32_t a) {  in lfs_tole32()  argument
188     return lfs_fromle32(a);  in lfs_tole32()
192 static inline uint32_t lfs_frombe32(uint32_t a) {  in lfs_frombe32()  argument
197     return __builtin_bswap32(a);  in lfs_frombe32()
201     return a;  in lfs_frombe32()
203     return (((uint8_t*)&a)[0] << 24) |  in lfs_frombe32()
204            (((uint8_t*)&a)[1] << 16) |  in lfs_frombe32()
205            (((uint8_t*)&a)[2] <<  8) |  in lfs_frombe32()
206            (((uint8_t*)&a)[3] <<  0);  in lfs_frombe32()
210 static inline uint32_t lfs_tobe32(uint32_t a) {  in lfs_tobe32()  argument
211     return lfs_frombe32(a);  in lfs_tobe32()