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// SPDX-License-Identifier: GPL-2.0
/*
* KUnit compilation/smoke test for Private list primitives.
*
* Copyright (c) 2025, Google LLC.
* Pasha Tatashin <pasha.tatashin@soleen.com>
*/
#include <linux/list_private.h>
#include <kunit/test.h>
/*
* This forces compiler to warn if you access it directly, because list
* primitives expect (struct list_head *), not (volatile struct list_head *).
*/
#undef __private
#define __private volatile
/* Redefine ACCESS_PRIVATE for this test. */
#undef ACCESS_PRIVATE
#define ACCESS_PRIVATE(p, member) \
(*((struct list_head *)((unsigned long)&((p)->member))))
struct list_test_struct {
int data;
struct list_head __private list;
};
static void list_private_compile_test(struct kunit *test)
{
struct list_test_struct entry;
struct list_test_struct *pos, *n;
LIST_HEAD(head);
INIT_LIST_HEAD(&ACCESS_PRIVATE(&entry, list));
list_add(&ACCESS_PRIVATE(&entry, list), &head);
pos = &entry;
pos = list_private_entry(&ACCESS_PRIVATE(&entry, list), struct list_test_struct, list);
pos = list_private_first_entry(&head, struct list_test_struct, list);
pos = list_private_last_entry(&head, struct list_test_struct, list);
pos = list_private_next_entry(pos, list);
pos = list_private_prev_entry(pos, list);
pos = list_private_next_entry_circular(pos, &head, list);
pos = list_private_prev_entry_circular(pos, &head, list);
if (list_private_entry_is_head(pos, &head, list))
return;
list_private_for_each_entry(pos, &head, list) { }
list_private_for_each_entry_reverse(pos, &head, list) { }
list_private_for_each_entry_continue(pos, &head, list) { }
list_private_for_each_entry_continue_reverse(pos, &head, list) { }
list_private_for_each_entry_from(pos, &head, list) { }
list_private_for_each_entry_from_reverse(pos, &head, list) { }
list_private_for_each_entry_safe(pos, n, &head, list)
list_private_safe_reset_next(pos, n, list);
list_private_for_each_entry_safe_continue(pos, n, &head, list) { }
list_private_for_each_entry_safe_from(pos, n, &head, list) { }
list_private_for_each_entry_safe_reverse(pos, n, &head, list) { }
}
static struct kunit_case list_private_test_cases[] = {
KUNIT_CASE(list_private_compile_test),
{},
};
static struct kunit_suite list_private_test_module = {
.name = "list-private-kunit-test",
.test_cases = list_private_test_cases,
};
kunit_test_suite(list_private_test_module);
MODULE_DESCRIPTION("KUnit compilation test for private list primitives");
MODULE_LICENSE("GPL");
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