// SPDX-License-Identifier: GPL-2.0-only//// uapi_test.c - An application of Kunit to check layout of structures exposed to user space for//		 FireWire subsystem.//// Copyright (c) 2023 Takashi Sakamoto #include <kunit/test.h>#include <linux/firewire-cdev.h> // Known issue added at v2.6.27 kernel.static void structure_layout_event_response(struct kunit *test){#if defined(CONFIG_X86_32)	// 4 bytes alignment for aggregate type including 8 bytes storage types.	KUNIT_EXPECT_EQ(test, 20, sizeof(struct fw_cdev_event_response));#else	// 8 bytes alignment for aggregate type including 8 bytes storage types.	KUNIT_EXPECT_EQ(test, 24, sizeof(struct fw_cdev_event_response));#endif 	KUNIT_EXPECT_EQ(test, 0, offsetof(struct fw_cdev_event_response, closure));	KUNIT_EXPECT_EQ(test, 8, offsetof(struct fw_cdev_event_response, type));	KUNIT_EXPECT_EQ(test, 12, offsetof(struct fw_cdev_event_response, rcode));	KUNIT_EXPECT_EQ(test, 16, offsetof(struct fw_cdev_event_response, length));	KUNIT_EXPECT_EQ(test, 20, offsetof(struct fw_cdev_event_response, data));} // Added at v6.5.static void structure_layout_event_request3(struct kunit *test){	KUNIT_EXPECT_EQ(test, 56, sizeof(struct fw_cdev_event_request3)); 	KUNIT_EXPECT_EQ(test, 0, offsetof(struct fw_cdev_event_request3, closure));	KUNIT_EXPECT_EQ(test, 8, offsetof(struct fw_cdev_event_request3, type));	KUNIT_EXPECT_EQ(test, 12, offsetof(struct fw_cdev_event_request3, tcode));	KUNIT_EXPECT_EQ(test, 16, offsetof(struct fw_cdev_event_request3, offset));	KUNIT_EXPECT_EQ(test, 24, offsetof(struct fw_cdev_event_request3, source_node_id));	KUNIT_EXPECT_EQ(test, 28, offsetof(struct fw_cdev_event_request3, destination_node_id));	KUNIT_EXPECT_EQ(test, 32, offsetof(struct fw_cdev_event_request3, card));	KUNIT_EXPECT_EQ(test, 36, offsetof(struct fw_cdev_event_request3, generation));	KUNIT_EXPECT_EQ(test, 40, offsetof(struct fw_cdev_event_request3, handle));	KUNIT_EXPECT_EQ(test, 44, offsetof(struct fw_cdev_event_request3, length));	KUNIT_EXPECT_EQ(test, 48, offsetof(struct fw_cdev_event_request3, tstamp));	KUNIT_EXPECT_EQ(test, 56, offsetof(struct fw_cdev_event_request3, data));} // Added at v6.5.static void structure_layout_event_response2(struct kunit *test){	KUNIT_EXPECT_EQ(test, 32, sizeof(struct fw_cdev_event_response2)); 	KUNIT_EXPECT_EQ(test, 0, offsetof(struct fw_cdev_event_response2, closure));	KUNIT_EXPECT_EQ(test, 8, offsetof(struct fw_cdev_event_response2, type));	KUNIT_EXPECT_EQ(test, 12, offsetof(struct fw_cdev_event_response2, rcode));	KUNIT_EXPECT_EQ(test, 16, offsetof(struct fw_cdev_event_response2, length));	KUNIT_EXPECT_EQ(test, 20, offsetof(struct fw_cdev_event_response2, request_tstamp));	KUNIT_EXPECT_EQ(test, 24, offsetof(struct fw_cdev_event_response2, response_tstamp));	KUNIT_EXPECT_EQ(test, 32, offsetof(struct fw_cdev_event_response2, data));} // Added at v6.5.static void structure_layout_event_phy_packet2(struct kunit *test){	KUNIT_EXPECT_EQ(test, 24, sizeof(struct fw_cdev_event_phy_packet2)); 	KUNIT_EXPECT_EQ(test, 0, offsetof(struct fw_cdev_event_phy_packet2, closure));	KUNIT_EXPECT_EQ(test, 8, offsetof(struct fw_cdev_event_phy_packet2, type));	KUNIT_EXPECT_EQ(test, 12, offsetof(struct fw_cdev_event_phy_packet2, rcode));	KUNIT_EXPECT_EQ(test, 16, offsetof(struct fw_cdev_event_phy_packet2, length));	KUNIT_EXPECT_EQ(test, 20, offsetof(struct fw_cdev_event_phy_packet2, tstamp));	KUNIT_EXPECT_EQ(test, 24, offsetof(struct fw_cdev_event_phy_packet2, data));} static struct kunit_case structure_layout_test_cases[] = {	KUNIT_CASE(structure_layout_event_response),	KUNIT_CASE(structure_layout_event_request3),	KUNIT_CASE(structure_layout_event_response2),	KUNIT_CASE(structure_layout_event_phy_packet2),	{}}; static struct kunit_suite structure_layout_test_suite = {	.name = "firewire-uapi-structure-layout",	.test_cases = structure_layout_test_cases,};kunit_test_suite(structure_layout_test_suite); MODULE_DESCRIPTION("FireWire UAPI unit test suite");MODULE_LICENSE("GPL");