Something went wrong. Try again.
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Something went wrong. Try again.
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122/* SPDX-License-Identifier: GPL-2.0 */#ifndef _KUNIT_OF_H#define _KUNIT_OF_H
#include <kunit/test.h>
struct device_node;
#ifdef CONFIG_OF
void of_node_put_kunit(struct kunit *test, struct device_node *node);
#else
static inlinevoid of_node_put_kunit(struct kunit *test, struct device_node *node){ kunit_skip(test, "requires CONFIG_OF");}
#endif /* !CONFIG_OF */
#if defined(CONFIG_OF) && defined(CONFIG_OF_OVERLAY) && defined(CONFIG_OF_EARLY_FLATTREE)
int of_overlay_fdt_apply_kunit(struct kunit *test, void *overlay_fdt, u32 overlay_fdt_size, int *ovcs_id);#else
static inline intof_overlay_fdt_apply_kunit(struct kunit *test, void *overlay_fdt, u32 overlay_fdt_size, int *ovcs_id){ kunit_skip(test, "requires CONFIG_OF and CONFIG_OF_OVERLAY and CONFIG_OF_EARLY_FLATTREE for root node"); return -EINVAL;}
#endif
/** * __of_overlay_apply_kunit() - Test managed of_overlay_fdt_apply() variant * @test: test context * @overlay_begin: start address of overlay to apply * @overlay_end: end address of overlay to apply * * This is mostly internal API. See of_overlay_apply_kunit() for the wrapper * that makes this easier to use. * * Similar to of_overlay_fdt_apply(), except the overlay is managed by the test * case and is automatically removed with of_overlay_remove() after the test * case concludes. * * Return: 0 on success, negative errno on failure */static inline int __of_overlay_apply_kunit(struct kunit *test, u8 *overlay_begin, const u8 *overlay_end){ int unused;
return of_overlay_fdt_apply_kunit(test, overlay_begin, overlay_end - overlay_begin, &unused);}
#define of_overlay_begin(overlay_name) __dtbo_##overlay_name##_begin#define of_overlay_end(overlay_name) __dtbo_##overlay_name##_end
#define OF_OVERLAY_DECLARE(overlay_name) \ extern uint8_t of_overlay_begin(overlay_name)[]; \ extern uint8_t of_overlay_end(overlay_name)[] \
/** * of_overlay_apply_kunit() - Test managed of_overlay_fdt_apply() for built-in overlays * @test: test context * @overlay_name: name of overlay to apply * * This macro is used to apply a device tree overlay built with the * cmd_dt_S_dtbo rule in scripts/Makefile.lib that has been compiled into the * kernel image or KUnit test module. The overlay is automatically removed when * the test is finished. * * Unit tests that need device tree nodes should compile an overlay file with * @overlay_name\.dtbo.o in their Makefile along with their unit test and then * load the overlay during their test. The @overlay_name matches the filename * of the overlay without the dtbo filename extension. If CONFIG_OF_OVERLAY is * not enabled, the @test will be skipped. * * In the Makefile * * .. code-block:: none * * obj-$(CONFIG_OF_OVERLAY_KUNIT_TEST) += overlay_test.o kunit_overlay_test.dtbo.o * * In the test * * .. code-block:: c * * static void of_overlay_kunit_of_overlay_apply(struct kunit *test) * { * struct device_node *np; * * KUNIT_ASSERT_EQ(test, 0, * of_overlay_apply_kunit(test, kunit_overlay_test)); * * np = of_find_node_by_name(NULL, "test-kunit"); * KUNIT_EXPECT_NOT_ERR_OR_NULL(test, np); * of_node_put(np); * } * * Return: 0 on success, negative errno on failure. */#define of_overlay_apply_kunit(test, overlay_name) \({ \ OF_OVERLAY_DECLARE(overlay_name); \ \ __of_overlay_apply_kunit((test), \ of_overlay_begin(overlay_name), \ of_overlay_end(overlay_name)); \})
#endif