#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"); |