tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0
2#include <linux/module.h>
3
4union ull_union {
5 unsigned long long ull;
6 struct {
7 unsigned int high;
8 unsigned int low;
9 } ui;
10};
11
12int __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}