| #include <linux/sort.h> |
| #include <linux/slab.h> |
| #include <linux/module.h> |
| |
| /* a simple boot-time regression test */ |
| |
| #define TEST_LEN 1000 |
| |
| static int __init cmpint(const void *a, const void *b) |
| { |
| return *(int *)a - *(int *)b; |
| } |
| |
| static int __init test_sort_init(void) |
| { |
| int *a, i, r = 1, err = -ENOMEM; |
| |
| a = kmalloc_array(TEST_LEN, sizeof(*a), GFP_KERNEL); |
| if (!a) |
| return err; |
| |
| for (i = 0; i < TEST_LEN; i++) { |
| r = (r * 725861) % 6599; |
| a[i] = r; |
| } |
| |
| sort(a, TEST_LEN, sizeof(*a), cmpint, NULL); |
| |
| err = -EINVAL; |
| for (i = 0; i < TEST_LEN-1; i++) |
| if (a[i] > a[i+1]) { |
| pr_err("test has failed\n"); |
| goto exit; |
| } |
| err = 0; |
| pr_info("test passed\n"); |
| exit: |
| kfree(a); |
| return err; |
| } |
| |
| module_init(test_sort_init); |
| MODULE_LICENSE("GPL"); |