Linux Kernel  3.7.1
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builtin-__ffs.h
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1 #ifndef _ASM_GENERIC_BITOPS_BUILTIN___FFS_H_
2 #define _ASM_GENERIC_BITOPS_BUILTIN___FFS_H_
3 
10 static __always_inline unsigned long __ffs(unsigned long word)
11 {
12  return __builtin_ctzl(word);
13 }
14 
15 #endif
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