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@ -82,6 +82,16 @@ static inline int fls (unsigned int x) |
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return 32 - __cntlz(x); |
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} |
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/**
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* __fls - find last (most-significant) set bit in a long word |
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* @word: the word to search |
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* |
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* Undefined if no set bit exists, so code should check against 0 first. |
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*/ |
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static inline unsigned long __fls(unsigned long word) |
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{ |
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return 31 - __cntlz(word); |
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} |
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#else |
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/* Use the generic implementation if we don't have the nsa/nsau instructions. */ |
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@ -90,6 +100,7 @@ static inline int fls (unsigned int x) |
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# include <asm-generic/bitops/__ffs.h> |
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# include <asm-generic/bitops/ffz.h> |
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# include <asm-generic/bitops/fls.h> |
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# include <asm-generic/bitops/__fls.h> |
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#endif |
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