// SPDX-License-Identifier: GPL-2.0 #include <kunit/test.h> #include <kunit/test-bug.h> #include <linux/module.h> #include <linux/miscdevice.h> /* dynamic minor (2) */ static struct miscdevice dev_dynamic_minor = { .minor = 2, .name = "dev_dynamic_minor", }; /* static minor (LCD_MINOR) */ static struct miscdevice dev_static_minor = { .minor = LCD_MINOR, .name = "dev_static_minor", }; /* misc dynamic minor */ static struct miscdevice dev_misc_dynamic_minor = { .minor = MISC_DYNAMIC_MINOR, .name = "dev_misc_dynamic_minor", }; static void kunit_dynamic_minor(struct kunit *test) { int ret; ret = misc_register(&dev_dynamic_minor); KUNIT_EXPECT_EQ(test, 0, ret); KUNIT_EXPECT_EQ(test, 2, dev_dynamic_minor.minor); misc_deregister(&dev_dynamic_minor); } static void kunit_static_minor(struct kunit *test) { int ret; ret = misc_register(&dev_static_minor); KUNIT_EXPECT_EQ(test, 0, ret); KUNIT_EXPECT_EQ(test, LCD_MINOR, dev_static_minor.minor); misc_deregister(&dev_static_minor); } static void kunit_misc_dynamic_minor(struct kunit *test) { int ret; ret = misc_register(&dev_misc_dynamic_minor); KUNIT_EXPECT_EQ(test, 0, ret); misc_deregister(&dev_misc_dynamic_minor); } static struct kunit_case test_cases[] = { KUNIT_CASE(kunit_dynamic_minor), KUNIT_CASE(kunit_static_minor), KUNIT_CASE(kunit_misc_dynamic_minor), {} }; static struct kunit_suite test_suite = { .name = "misc_minor_test", .test_cases = test_cases, }; kunit_test_suite(test_suite); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Vimal Agrawal"); MODULE_DESCRIPTION("misc minor testing");