Files
android/lib/test_sort.c
threeeye bc1d038eac REVVL 6 Pro kernel bring-up: full working tree snapshot (2026-09-12)
Squashed backup commit (no shallow-clone history issues) of
xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream
commit 9eece662e) plus all fixes applied to get everpal_defconfig building
clean against a modern (GCC 15.2.0) toolchain -- see the previous commit
message on the lineage-23.2 branch (also in this repo history is not
available here since this is a squashed snapshot; full incremental history
lives in the local DL380 checkout and the upstream GitHub remote).

Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
2026-09-12 13:36:46 +00:00

44 lines
754 B
C

#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");