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