div64-generic.c 319 B

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  1. // SPDX-License-Identifier: GPL-2.0
  2. /*
  3. * Generic __div64_32 wrapper for __xdiv64_32.
  4. */
  5. #include <linux/types.h>
  6. #include <asm/div64.h>
  7. extern uint64_t __xdiv64_32(u64 n, u32 d);
  8. uint32_t __div64_32(u64 *xp, u32 y)
  9. {
  10. uint32_t rem;
  11. uint64_t q = __xdiv64_32(*xp, y);
  12. rem = *xp - q * y;
  13. *xp = q;
  14. return rem;
  15. }