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50 lines
870 B
50 lines
870 B
// SPDX-License-Identifier: GPL-2.0-only |
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#include <linux/sort.h> |
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#include <linux/slab.h> |
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#include <linux/module.h> |
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/* a simple boot-time regression test */ |
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#define TEST_LEN 1000 |
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static int __init cmpint(const void *a, const void *b) |
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{ |
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return *(int *)a - *(int *)b; |
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} |
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static int __init test_sort_init(void) |
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{ |
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int *a, i, r = 1, err = -ENOMEM; |
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a = kmalloc_array(TEST_LEN, sizeof(*a), GFP_KERNEL); |
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if (!a) |
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return err; |
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for (i = 0; i < TEST_LEN; i++) { |
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r = (r * 725861) % 6599; |
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a[i] = r; |
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} |
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sort(a, TEST_LEN, sizeof(*a), cmpint, NULL); |
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err = -EINVAL; |
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for (i = 0; i < TEST_LEN-1; i++) |
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if (a[i] > a[i+1]) { |
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pr_err("test has failed\n"); |
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goto exit; |
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} |
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err = 0; |
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pr_info("test passed\n"); |
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exit: |
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kfree(a); |
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return err; |
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} |
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static void __exit test_sort_exit(void) |
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{ |
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} |
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module_init(test_sort_init); |
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module_exit(test_sort_exit); |
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MODULE_LICENSE("GPL");
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