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drm/tests: helpers: Add helper for drm_display_mode_from_cea_vic()

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As Maxime suggested, add a new helper
drm_kunit_display_mode_from_cea_vic(), it can replace the direct call
of drm_display_mode_from_cea_vic(), and it will help solving
the `mode` memory leaks.

Acked-by: Maxime Ripard <mripard@kernel.org>
Suggested-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241030023504.530425-2-ruanjinjie@huawei.com
Signed-off-by: Maxime Ripard <mripard@kernel.org>
This commit is contained in:
Jinjie Ruan 2024-10-30 10:35:02 +08:00 committed by Maxime Ripard
parent 4700fd3e05
commit caa714f866
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GPG key ID: 275FCE19A23DBE76
2 changed files with 46 additions and 0 deletions
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42
drivers/gpu/drm/tests/drm_kunit_helpers.c
View file

@ -3,6 +3,7 @@
#include <drm/drm_atomic.h> #include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h> #include <drm/drm_atomic_helper.h>
#include <drm/drm_drv.h> #include <drm/drm_drv.h>
#include <drm/drm_edid.h>
#include <drm/drm_fourcc.h> #include <drm/drm_fourcc.h>
#include <drm/drm_kunit_helpers.h> #include <drm/drm_kunit_helpers.h>
#include <drm/drm_managed.h> #include <drm/drm_managed.h>
@ -311,6 +312,47 @@ drm_kunit_helper_create_crtc(struct kunit *test,
} }
EXPORT_SYMBOL_GPL(drm_kunit_helper_create_crtc); EXPORT_SYMBOL_GPL(drm_kunit_helper_create_crtc);
static void kunit_action_drm_mode_destroy(void *ptr)
{
struct drm_display_mode *mode = ptr;
drm_mode_destroy(NULL, mode);
}
/**
* drm_kunit_display_mode_from_cea_vic() - return a mode for CEA VIC
for a KUnit test
* @test: The test context object
* @dev: DRM device
* @video_code: CEA VIC of the mode
*
* Creates a new mode matching the specified CEA VIC for a KUnit test.
*
* Resources will be cleaned up automatically.
*
* Returns: A new drm_display_mode on success or NULL on failure
*/
struct drm_display_mode *
drm_kunit_display_mode_from_cea_vic(struct kunit *test, struct drm_device *dev,
u8 video_code)
{
struct drm_display_mode *mode;
int ret;
mode = drm_display_mode_from_cea_vic(dev, video_code);
if (!mode)
return NULL;
ret = kunit_add_action_or_reset(test,
kunit_action_drm_mode_destroy,
mode);
if (ret)
return NULL;
return mode;
}
EXPORT_SYMBOL_GPL(drm_kunit_display_mode_from_cea_vic);
MODULE_AUTHOR("Maxime Ripard <maxime@cerno.tech>"); MODULE_AUTHOR("Maxime Ripard <maxime@cerno.tech>");
MODULE_DESCRIPTION("KUnit test suite helper functions"); MODULE_DESCRIPTION("KUnit test suite helper functions");
MODULE_LICENSE("GPL"); MODULE_LICENSE("GPL");

4
include/drm/drm_kunit_helpers.h
View file

@ -120,4 +120,8 @@ drm_kunit_helper_create_crtc(struct kunit *test,
const struct drm_crtc_funcs *funcs, const struct drm_crtc_funcs *funcs,
const struct drm_crtc_helper_funcs *helper_funcs); const struct drm_crtc_helper_funcs *helper_funcs);
struct drm_display_mode *
drm_kunit_display_mode_from_cea_vic(struct kunit *test, struct drm_device *dev,
u8 video_code);
#endif // DRM_KUNIT_HELPERS_H_ #endif // DRM_KUNIT_HELPERS_H_