9  * Within a word, bits are numbered LSB first.  Lot's of places make
11  * This can cause confusion for large (> 1 word) bitmaps on a
13  * bit depends on the word size.
256  * @word - The word to search
262 static inline unsigned char __flogr(unsigned long word)  in __flogr()  argument
264 	if (__builtin_constant_p(word)) {  in __flogr()
267 		if (!word)  in __flogr()
269 		if (!(word & 0xffffffff00000000UL)) {  in __flogr()
270 			word <<= 32;  in __flogr()
273 		if (!(word & 0xffff000000000000UL)) {  in __flogr()
274 			word <<= 16;  in __flogr()
277 		if (!(word & 0xff00000000000000UL)) {  in __flogr()
278 			word <<= 8;  in __flogr()
281 		if (!(word & 0xf000000000000000UL)) {  in __flogr()
282 			word <<= 4;  in __flogr()
285 		if (!(word & 0xc000000000000000UL)) {  in __flogr()
286 			word <<= 2;  in __flogr()
289 		if (!(word & 0x8000000000000000UL)) {  in __flogr()
290 			word <<= 1;  in __flogr()
297 		rp.even = word;  in __flogr()
306  * __ffs - find first bit in word.
307  * @word: The word to search
311 static inline unsigned long __ffs(unsigned long word)  in __ffs()  argument
313 	return __flogr(-word & word) ^ (BITS_PER_LONG - 1);  in __ffs()
318  * @word: the word to search
323 static inline int ffs(int word)  in ffs()  argument
326 	unsigned int val = (unsigned int)word;  in ffs()
332  * __fls - find last (most-significant) set bit in a long word
333  * @word: the word to search
337 static inline unsigned long __fls(unsigned long word)  in __fls()  argument
339 	return __flogr(word) ^ (BITS_PER_LONG - 1);  in __fls()
343  * fls64 - find last set bit in a 64-bit word
344  * @word: the word to search
353 static inline int fls64(unsigned long word)  in fls64()  argument
357 	return (1 + (__flogr(word) ^ (BITS_PER_LONG - 1))) & mask;  in fls64()
362  * @word: the word to search
367 static inline int fls(unsigned int word)  in fls()  argument
369 	return fls64(word);  in fls()