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-rw-r--r--lib/list_sort.c149
1 files changed, 0 insertions, 149 deletions
diff --git a/lib/list_sort.c b/lib/list_sort.c
index 3fe401067e20..9e9acc37652f 100644
--- a/lib/list_sort.c
+++ b/lib/list_sort.c
@@ -1,6 +1,3 @@
-
-#define pr_fmt(fmt) "list_sort_test: " fmt
-
#include <linux/kernel.h>
#include <linux/bug.h>
#include <linux/compiler.h>
@@ -145,149 +142,3 @@ void list_sort(void *priv, struct list_head *head,
merge_and_restore_back_links(priv, cmp, head, part[max_lev], list);
}
EXPORT_SYMBOL(list_sort);
-
-#ifdef CONFIG_TEST_LIST_SORT
-
-#include <linux/slab.h>
-#include <linux/random.h>
-
-/*
- * The pattern of set bits in the list length determines which cases
- * are hit in list_sort().
- */
-#define TEST_LIST_LEN (512+128+2) /* not including head */
-
-#define TEST_POISON1 0xDEADBEEF
-#define TEST_POISON2 0xA324354C
-
-struct debug_el {
- unsigned int poison1;
- struct list_head list;
- unsigned int poison2;
- int value;
- unsigned serial;
-};
-
-/* Array, containing pointers to all elements in the test list */
-static struct debug_el **elts __initdata;
-
-static int __init check(struct debug_el *ela, struct debug_el *elb)
-{
- if (ela->serial >= TEST_LIST_LEN) {
- pr_err("error: incorrect serial %d\n", ela->serial);
- return -EINVAL;
- }
- if (elb->serial >= TEST_LIST_LEN) {
- pr_err("error: incorrect serial %d\n", elb->serial);
- return -EINVAL;
- }
- if (elts[ela->serial] != ela || elts[elb->serial] != elb) {
- pr_err("error: phantom element\n");
- return -EINVAL;
- }
- if (ela->poison1 != TEST_POISON1 || ela->poison2 != TEST_POISON2) {
- pr_err("error: bad poison: %#x/%#x\n",
- ela->poison1, ela->poison2);
- return -EINVAL;
- }
- if (elb->poison1 != TEST_POISON1 || elb->poison2 != TEST_POISON2) {
- pr_err("error: bad poison: %#x/%#x\n",
- elb->poison1, elb->poison2);
- return -EINVAL;
- }
- return 0;
-}
-
-static int __init cmp(void *priv, struct list_head *a, struct list_head *b)
-{
- struct debug_el *ela, *elb;
-
- ela = container_of(a, struct debug_el, list);
- elb = container_of(b, struct debug_el, list);
-
- check(ela, elb);
- return ela->value - elb->value;
-}
-
-static int __init list_sort_test(void)
-{
- int i, count = 1, err = -ENOMEM;
- struct debug_el *el;
- struct list_head *cur;
- LIST_HEAD(head);
-
- pr_debug("start testing list_sort()\n");
-
- elts = kcalloc(TEST_LIST_LEN, sizeof(*elts), GFP_KERNEL);
- if (!elts) {
- pr_err("error: cannot allocate memory\n");
- return err;
- }
-
- for (i = 0; i < TEST_LIST_LEN; i++) {
- el = kmalloc(sizeof(*el), GFP_KERNEL);
- if (!el) {
- pr_err("error: cannot allocate memory\n");
- goto exit;
- }
- /* force some equivalencies */
- el->value = prandom_u32() % (TEST_LIST_LEN / 3);
- el->serial = i;
- el->poison1 = TEST_POISON1;
- el->poison2 = TEST_POISON2;
- elts[i] = el;
- list_add_tail(&el->list, &head);
- }
-
- list_sort(NULL, &head, cmp);
-
- err = -EINVAL;
- for (cur = head.next; cur->next != &head; cur = cur->next) {
- struct debug_el *el1;
- int cmp_result;
-
- if (cur->next->prev != cur) {
- pr_err("error: list is corrupted\n");
- goto exit;
- }
-
- cmp_result = cmp(NULL, cur, cur->next);
- if (cmp_result > 0) {
- pr_err("error: list is not sorted\n");
- goto exit;
- }
-
- el = container_of(cur, struct debug_el, list);
- el1 = container_of(cur->next, struct debug_el, list);
- if (cmp_result == 0 && el->serial >= el1->serial) {
- pr_err("error: order of equivalent elements not "
- "preserved\n");
- goto exit;
- }
-
- if (check(el, el1)) {
- pr_err("error: element check failed\n");
- goto exit;
- }
- count++;
- }
- if (head.prev != cur) {
- pr_err("error: list is corrupted\n");
- goto exit;
- }
-
-
- if (count != TEST_LIST_LEN) {
- pr_err("error: bad list length %d", count);
- goto exit;
- }
-
- err = 0;
-exit:
- for (i = 0; i < TEST_LIST_LEN; i++)
- kfree(elts[i]);
- kfree(elts);
- return err;
-}
-late_initcall(list_sort_test);
-#endif /* CONFIG_TEST_LIST_SORT */