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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179// SPDX-License-Identifier: GPL-2.0/* * KUnit tests for OF APIs */#include <linux/ioport.h>#include <linux/module.h>#include <linux/of.h>
#include <kunit/test.h>
#include "of_private.h"
/* * Test that the root node "/" can be found by path. */static void of_dtb_root_node_found_by_path(struct kunit *test){ struct device_node *np;
np = of_find_node_by_path("/"); KUNIT_EXPECT_NOT_ERR_OR_NULL(test, np); of_node_put(np);}
/* * Test that the 'of_root' global variable is always populated when DT code is * enabled. Remove this test once of_root is removed from global access. */static void of_dtb_root_node_populates_of_root(struct kunit *test){ KUNIT_EXPECT_NOT_ERR_OR_NULL(test, of_root);}
static struct kunit_case of_dtb_test_cases[] = { KUNIT_CASE(of_dtb_root_node_found_by_path), KUNIT_CASE(of_dtb_root_node_populates_of_root), {}};
static int of_dtb_test_init(struct kunit *test){ of_root_kunit_skip(test); if (!IS_ENABLED(CONFIG_OF_EARLY_FLATTREE)) kunit_skip(test, "requires CONFIG_OF_EARLY_FLATTREE");
return 0;}
/* * Test suite to confirm a DTB is loaded. */static struct kunit_suite of_dtb_suite = { .name = "of_dtb", .test_cases = of_dtb_test_cases, .init = of_dtb_test_init,};
struct of_address_resource_bounds_case { u64 start; u64 size; int ret;
u64 res_start; u64 res_end;};
static void of_address_resource_bounds_case_desc(const struct of_address_resource_bounds_case *p, char *name){ snprintf(name, KUNIT_PARAM_DESC_SIZE, "start=0x%016llx,size=0x%016llx", p->start, p->size);}
static const struct of_address_resource_bounds_case of_address_resource_bounds_cases[] = { { .start = 0, .size = 0, .ret = 0, .res_start = 0, .res_end = -1, }, { .start = 0, .size = 0x1000, .ret = 0, .res_start = 0, .res_end = 0xfff, }, { .start = 0x1000, .size = 0, .ret = 0, .res_start = 0x1000, .res_end = 0xfff, }, { .start = 0x1000, .size = 0x1000, .ret = 0, .res_start = 0x1000, .res_end = 0x1fff, }, { .start = 1, .size = RESOURCE_SIZE_MAX, .ret = 0, .res_start = 1, .res_end = RESOURCE_SIZE_MAX, }, { .start = RESOURCE_SIZE_MAX, .size = 1, .ret = 0, .res_start = RESOURCE_SIZE_MAX, .res_end = RESOURCE_SIZE_MAX, }, { .start = 2, .size = RESOURCE_SIZE_MAX, .ret = -EOVERFLOW, }, { .start = RESOURCE_SIZE_MAX, .size = 2, .ret = -EOVERFLOW, }, { .start = ULL(0x100000000), .size = 1, .ret = sizeof(resource_size_t) > sizeof(u32) ? 0 : -EOVERFLOW, .res_start = ULL(0x100000000), .res_end = ULL(0x100000000), }, { .start = 0x1000, .size = 0xffffffff, .ret = sizeof(resource_size_t) > sizeof(u32) ? 0 : -EOVERFLOW, .res_start = 0x1000, .res_end = ULL(0x100000ffe), },};
KUNIT_ARRAY_PARAM(of_address_resource_bounds, of_address_resource_bounds_cases, of_address_resource_bounds_case_desc);
static void of_address_resource_bounds(struct kunit *test){ const struct of_address_resource_bounds_case *param = test->param_value; struct resource r; /* Intentionally uninitialized */ int ret;
if (!IS_ENABLED(CONFIG_OF_ADDRESS)) kunit_skip(test, "CONFIG_OF_ADDRESS not enabled\n");
ret = __of_address_resource_bounds(&r, param->start, param->size); KUNIT_EXPECT_EQ(test, param->ret, ret); if (ret == 0) { KUNIT_EXPECT_EQ(test, (resource_size_t)param->res_start, r.start); KUNIT_EXPECT_EQ(test, (resource_size_t)param->res_end, r.end); KUNIT_EXPECT_EQ(test, param->size, resource_size(&r)); }}
static struct kunit_case of_address_test_cases[] = { KUNIT_CASE_PARAM(of_address_resource_bounds, of_address_resource_bounds_gen_params), {}};
static struct kunit_suite of_address_suite = { .name = "of_address", .test_cases = of_address_test_cases,};
kunit_test_suites( &of_dtb_suite, &of_address_suite,);MODULE_DESCRIPTION("KUnit tests for OF APIs");MODULE_IMPORT_NS("EXPORTED_FOR_KUNIT_TESTING");MODULE_LICENSE("GPL");