LXR linux/include/vdso/math64.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __VDSO_MATH64_H
   3#define __VDSO_MATH64_H
   4
   5static __always_inline u32
   6__iter_div_u64_rem(u64 dividend, u32 divisor, u64 *remainder)
   7{
   8        u32 ret = 0;
   9
  10        while (dividend >= divisor) {
  11                /* The following asm() prevents the compiler from
  12                   optimising this loop into a modulo operation.  */
  13                asm("" : "+rm"(dividend));
  14
  15                dividend -= divisor;
  16                ret++;
  17        }
  18
  19        *remainder = dividend;
  20
  21        return ret;
  22}
  23
  24#endif /* __VDSO_MATH64_H */
  25