reciprocal_div.c 218 B

123456789101112
  1. #include <asm/div64.h>
  2. #include <linux/reciprocal_div.h>
  3. #include <linux/export.h>
  4. u32 reciprocal_value(u32 k)
  5. {
  6. u64 val = (1LL << 32) + (k - 1);
  7. do_div(val, k);
  8. return (u32)val;
  9. }
  10. EXPORT_SYMBOL(reciprocal_value);