projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 09c434b8 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
| c5adae95 KF |
2 | #include <linux/sort.h> |
| 3 | #include <linux/slab.h> | |
| ebd03a9a | 4 | #include <linux/module.h> |
| c5adae95 | 5 | |
| ebd03a9a | 6 | /* a simple boot-time regression test */ |
| c5adae95 KF |
7 | |
| 8 | #define TEST_LEN 1000 | |
| 9 | ||
| 10 | static int __init cmpint(const void *a, const void *b) | |
| 11 | { | |
| 12 | return *(int *)a - *(int *)b; | |
| 13 | } | |
| 14 | ||
| 15 | static int __init test_sort_init(void) | |
| 16 | { | |
| 17 | int *a, i, r = 1, err = -ENOMEM; | |
| 18 | ||
| 19 | a = kmalloc_array(TEST_LEN, sizeof(*a), GFP_KERNEL); | |
| 20 | if (!a) | |
| 21 | return err; | |
| 22 | ||
| 23 | for (i = 0; i < TEST_LEN; i++) { | |
| 24 | r = (r * 725861) % 6599; | |
| 25 | a[i] = r; | |
| 26 | } | |
| 27 | ||
| 28 | sort(a, TEST_LEN, sizeof(*a), cmpint, NULL); | |
| 29 | ||
| 30 | err = -EINVAL; | |
| 31 | for (i = 0; i < TEST_LEN-1; i++) | |
| 32 | if (a[i] > a[i+1]) { | |
| 33 | pr_err("test has failed\n"); | |
| 34 | goto exit; | |
| 35 | } | |
| 36 | err = 0; | |
| 37 | pr_info("test passed\n"); | |
| 38 | exit: | |
| 39 | kfree(a); | |
| 40 | return err; | |
| 41 | } | |
| ebd03a9a | 42 | |
| 92fc7cb8 PS |
43 | static void __exit test_sort_exit(void) |
| 44 | { | |
| 45 | } | |
| 46 | ||
| ebd03a9a | 47 | module_init(test_sort_init); |
| 92fc7cb8 PS |
48 | module_exit(test_sort_exit); |
| 49 | ||
| ebd03a9a | 50 | MODULE_LICENSE("GPL"); |