8  * __ffs - find first bit in word.
9  * @word: The word to search
13 static __always_inline unsigned long __ffs(unsigned long word)  in __ffs()  argument
18 	if ((word & 0xffffffff) == 0) {  in __ffs()
20 		word >>= 32;  in __ffs()
23 	if ((word & 0xffff) == 0) {  in __ffs()
25 		word >>= 16;  in __ffs()
27 	if ((word & 0xff) == 0) {  in __ffs()
29 		word >>= 8;  in __ffs()
31 	if ((word & 0xf) == 0) {  in __ffs()
33 		word >>= 4;  in __ffs()
35 	if ((word & 0x3) == 0) {  in __ffs()
37 		word >>= 2;  in __ffs()
39 	if ((word & 0x1) == 0)  in __ffs()