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dc7c5163 TS |
1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | // | |
3 | // uapi_test.c - An application of Kunit to check layout of structures exposed to user space for | |
4 | // FireWire subsystem. | |
5 | // | |
6 | // Copyright (c) 2023 Takashi Sakamoto | |
7 | ||
8 | #include <kunit/test.h> | |
9 | #include <linux/firewire-cdev.h> | |
10 | ||
11 | // Known issue added at v2.6.27 kernel. | |
12 | static void structure_layout_event_response(struct kunit *test) | |
13 | { | |
14 | #if defined(CONFIG_X86_32) | |
15 | // 4 bytes alignment for aggregate type including 8 bytes storage types. | |
16 | KUNIT_EXPECT_EQ(test, 20, sizeof(struct fw_cdev_event_response)); | |
17 | #else | |
18 | // 8 bytes alignment for aggregate type including 8 bytes storage types. | |
19 | KUNIT_EXPECT_EQ(test, 24, sizeof(struct fw_cdev_event_response)); | |
20 | #endif | |
21 | ||
22 | KUNIT_EXPECT_EQ(test, 0, offsetof(struct fw_cdev_event_response, closure)); | |
23 | KUNIT_EXPECT_EQ(test, 8, offsetof(struct fw_cdev_event_response, type)); | |
24 | KUNIT_EXPECT_EQ(test, 12, offsetof(struct fw_cdev_event_response, rcode)); | |
25 | KUNIT_EXPECT_EQ(test, 16, offsetof(struct fw_cdev_event_response, length)); | |
26 | KUNIT_EXPECT_EQ(test, 20, offsetof(struct fw_cdev_event_response, data)); | |
27 | } | |
28 | ||
7c22d4a9 TS |
29 | // Added at v6.5. |
30 | static void structure_layout_event_request3(struct kunit *test) | |
31 | { | |
32 | KUNIT_EXPECT_EQ(test, 56, sizeof(struct fw_cdev_event_request3)); | |
33 | ||
34 | KUNIT_EXPECT_EQ(test, 0, offsetof(struct fw_cdev_event_request3, closure)); | |
35 | KUNIT_EXPECT_EQ(test, 8, offsetof(struct fw_cdev_event_request3, type)); | |
36 | KUNIT_EXPECT_EQ(test, 12, offsetof(struct fw_cdev_event_request3, tcode)); | |
37 | KUNIT_EXPECT_EQ(test, 16, offsetof(struct fw_cdev_event_request3, offset)); | |
38 | KUNIT_EXPECT_EQ(test, 24, offsetof(struct fw_cdev_event_request3, source_node_id)); | |
39 | KUNIT_EXPECT_EQ(test, 28, offsetof(struct fw_cdev_event_request3, destination_node_id)); | |
40 | KUNIT_EXPECT_EQ(test, 32, offsetof(struct fw_cdev_event_request3, card)); | |
41 | KUNIT_EXPECT_EQ(test, 36, offsetof(struct fw_cdev_event_request3, generation)); | |
42 | KUNIT_EXPECT_EQ(test, 40, offsetof(struct fw_cdev_event_request3, handle)); | |
43 | KUNIT_EXPECT_EQ(test, 44, offsetof(struct fw_cdev_event_request3, length)); | |
44 | KUNIT_EXPECT_EQ(test, 48, offsetof(struct fw_cdev_event_request3, tstamp)); | |
45 | KUNIT_EXPECT_EQ(test, 56, offsetof(struct fw_cdev_event_request3, data)); | |
46 | } | |
47 | ||
fc2b52cf TS |
48 | // Added at v6.5. |
49 | static void structure_layout_event_response2(struct kunit *test) | |
50 | { | |
51 | KUNIT_EXPECT_EQ(test, 32, sizeof(struct fw_cdev_event_response2)); | |
52 | ||
53 | KUNIT_EXPECT_EQ(test, 0, offsetof(struct fw_cdev_event_response2, closure)); | |
54 | KUNIT_EXPECT_EQ(test, 8, offsetof(struct fw_cdev_event_response2, type)); | |
55 | KUNIT_EXPECT_EQ(test, 12, offsetof(struct fw_cdev_event_response2, rcode)); | |
56 | KUNIT_EXPECT_EQ(test, 16, offsetof(struct fw_cdev_event_response2, length)); | |
57 | KUNIT_EXPECT_EQ(test, 20, offsetof(struct fw_cdev_event_response2, request_tstamp)); | |
58 | KUNIT_EXPECT_EQ(test, 24, offsetof(struct fw_cdev_event_response2, response_tstamp)); | |
59 | KUNIT_EXPECT_EQ(test, 32, offsetof(struct fw_cdev_event_response2, data)); | |
60 | } | |
61 | ||
e27b3939 TS |
62 | // Added at v6.5. |
63 | static void structure_layout_event_phy_packet2(struct kunit *test) | |
64 | { | |
65 | KUNIT_EXPECT_EQ(test, 24, sizeof(struct fw_cdev_event_phy_packet2)); | |
66 | ||
67 | KUNIT_EXPECT_EQ(test, 0, offsetof(struct fw_cdev_event_phy_packet2, closure)); | |
68 | KUNIT_EXPECT_EQ(test, 8, offsetof(struct fw_cdev_event_phy_packet2, type)); | |
69 | KUNIT_EXPECT_EQ(test, 12, offsetof(struct fw_cdev_event_phy_packet2, rcode)); | |
70 | KUNIT_EXPECT_EQ(test, 16, offsetof(struct fw_cdev_event_phy_packet2, length)); | |
71 | KUNIT_EXPECT_EQ(test, 20, offsetof(struct fw_cdev_event_phy_packet2, tstamp)); | |
72 | KUNIT_EXPECT_EQ(test, 24, offsetof(struct fw_cdev_event_phy_packet2, data)); | |
73 | } | |
74 | ||
dc7c5163 TS |
75 | static struct kunit_case structure_layout_test_cases[] = { |
76 | KUNIT_CASE(structure_layout_event_response), | |
7c22d4a9 | 77 | KUNIT_CASE(structure_layout_event_request3), |
fc2b52cf | 78 | KUNIT_CASE(structure_layout_event_response2), |
e27b3939 | 79 | KUNIT_CASE(structure_layout_event_phy_packet2), |
dc7c5163 TS |
80 | {} |
81 | }; | |
82 | ||
83 | static struct kunit_suite structure_layout_test_suite = { | |
84 | .name = "firewire-uapi-structure-layout", | |
85 | .test_cases = structure_layout_test_cases, | |
86 | }; | |
87 | kunit_test_suite(structure_layout_test_suite); | |
e003498e | 88 | |
f94b7770 | 89 | MODULE_DESCRIPTION("FireWire UAPI unit test suite"); |
e003498e | 90 | MODULE_LICENSE("GPL"); |