1 #include <asm/div64.h> 2 #include <linux/reciprocal_div.h> 3 #include <linux/export.h> 4 reciprocal_value(u32 k)5 u32 reciprocal_value(u32 k) 6 { 7 u64 val = (1LL << 32) + (k - 1); 8 do_div(val, k); 9 return (u32)val; 10 } 11 EXPORT_SYMBOL(reciprocal_value); 12