| | 1 | #include <linux/sort.h> |
| | 2 | #include <linux/slab.h> |
| | 3 | #include <linux/module.h> |
| | 4 | |
| | 5 | /* a simple boot-time regression test */ |
| | 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 | } |
| | 41 | |
| | 42 | static void __exit test_sort_exit(void) |
| | 43 | { |
| | 44 | } |
| | 45 | |
| | 46 | module_init(test_sort_init); |
| | 47 | module_exit(test_sort_exit); |
| | 48 | |
| | 49 | MODULE_LICENSE("GPL"); |
projects / linux.git / blame_incremental