[PATCH v6 8/9] drm: Add macro to export functions only when CONFIG_DRM_DEBUG_SELFTEST is enabled

[Chris Wilson]

Quoting Alexandru-Cosmin Gheorghe (2018-10-29 17:14:43)
> If we want to be able to write drmselftests for non-static core
> functions that are not intended to be used by drivers we need this
> functions to be exported.
> 
> This adds a macro that is tied of CONFIG_DRM_DEBUG_SELFTEST, and uses
> that to export drm_internal_framebuffer_create, in order for
> subsequent patches to be able to test it.
> 
> Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe at arm.com>
> ---
>  drivers/gpu/drm/drm_framebuffer.c | 1 +
>  include/drm/drmP.h                | 6 ++++++
>  2 files changed, 7 insertions(+)
> 
> diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c
> index 167c1c4544af..fcaea8f50513 100644
> --- a/drivers/gpu/drm/drm_framebuffer.c
> +++ b/drivers/gpu/drm/drm_framebuffer.c
> @@ -323,6 +323,7 @@ drm_internal_framebuffer_create(struct drm_device *dev,
>  
>         return fb;
>  }
> +EXPORT_SYMBOL_FOR_TESTS_ONLY(drm_internal_framebuffer_create);
>  
>  /**
>   * drm_mode_addfb2 - add an FB to the graphics configuration
> diff --git a/include/drm/drmP.h b/include/drm/drmP.h
> index 05350424a4d3..514beb2d483a 100644
> --- a/include/drm/drmP.h
> +++ b/include/drm/drmP.h
> @@ -110,4 +110,10 @@ static inline bool drm_can_sleep(void)
>         return true;
>  }
>  
> +#if defined(CONFIG_DRM_DEBUG_SELFTEST_MODULE)
> +#define EXPORT_SYMBOL_FOR_TESTS_ONLY(x) EXPORT_SYMBOL(x)
> +#else
> +#define EXPORT_SYMBOL_FOR_TESTS_ONLY(x)
> +#endif

There's no Kconfig stanza for this symbol.
-Chris