arch/parisc/lib/ucmpdi2.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <linux/module.h>
   3
   4 union ull_union {
   5         unsigned long long ull;
   6         struct {
   7                 unsigned int high;
   8                 unsigned int low;
   9         } ui;
  10 };
  11
  12 int __ucmpdi2(unsigned long long a, unsigned long long b)
  13 {
  14         union ull_union au = {.ull = a};
  15         union ull_union bu = {.ull = b};
  16
  17         if (au.ui.high < bu.ui.high)
  18                 return 0;
  19         else if (au.ui.high > bu.ui.high)
  20                 return 2;
  21         if (au.ui.low < bu.ui.low)
  22                 return 0;
  23         else if (au.ui.low > bu.ui.low)
  24                 return 2;
  25         return 1;
  26 }