/* SPDX-License-Identifier: GPL-2.0 *//* * KUnit API providing hooks for non-test code to interact with tests. * * Copyright (C) 2020, Google LLC. * Author: Uriel Guajardo <urielguajardo@google.com> */ #ifndef _KUNIT_TEST_BUG_H#define _KUNIT_TEST_BUG_H #include <linux/stddef.h> /* for NULL */ #if IS_ENABLED(CONFIG_KUNIT) #include <linux/jump_label.h> /* For static branch */#include <linux/sched.h> /* Static key if KUnit is running any tests. */DECLARE_STATIC_KEY_FALSE(kunit_running); /* Hooks table: a table of function pointers filled in when kunit loads */extern struct kunit_hooks_table {	__printf(3, 4) void (*fail_current_test)(const char*, int, const char*, ...);	void *(*get_static_stub_address)(struct kunit *test, void *real_fn_addr);} kunit_hooks; /** * kunit_get_current_test() - Return a pointer to the currently running *			      KUnit test. * * If a KUnit test is running in the current task, returns a pointer to its * associated struct kunit. This pointer can then be passed to any KUnit * function or assertion. If no test is running (or a test is running in a * different task), returns NULL. * * This function is safe to call even when KUnit is disabled. If CONFIG_KUNIT * is not enabled, it will compile down to nothing and will return quickly no * test is running. */static inline struct kunit *kunit_get_current_test(void){	if (!static_branch_unlikely(&kunit_running))		return NULL; 	return current->kunit_test;}  /** * kunit_fail_current_test() - If a KUnit test is running, fail it. * * If a KUnit test is running in the current task, mark that test as failed. */#define kunit_fail_current_test(fmt, ...) do {					\		if (static_branch_unlikely(&kunit_running)) {			\			/* Guaranteed to be non-NULL when kunit_running true*/	\			kunit_hooks.fail_current_test(__FILE__, __LINE__,	\						  fmt, ##__VA_ARGS__);		\		}								\	} while (0) #else static inline struct kunit *kunit_get_current_test(void) { return NULL; } #define kunit_fail_current_test(fmt, ...) do {} while (0) #endif #endif /* _KUNIT_TEST_BUG_H */