On Wed, Apr 8, 2020 at 3:13 PM Arnd Bergmann <arnd@xxxxxxxx> wrote:
>
> Without CONFIG_DEBUG_FS, this newly added function causes a harmless
> warning:
>
> amdgpu_dm/amdgpu_dm.c: In function 'amdgpu_dm_connector_late_register':
> amdgpu_dm/amdgpu_dm.c:4723:30: error: unused variable 'amdgpu_dm_connector' [-Werror=unused-variable]
> 4723 | struct amdgpu_dm_connector *amdgpu_dm_connector =
> | ^~~~~~~~~~~~~~~~~~~
>
> Use an IS_ENABLED() check instead to let the compiler see what
> is going on.
>
> Fixes: 14f04fa4834a ("drm/amdgpu/display: add a late register connector callback")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Already fixed:
https://cgit.freedesktop.org/~agd5f/linux/commit/?h=drm-next&id=ef04ca2a941ae62cef517eac08210fed5c20fd5d
Alex
> ---
> drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 7 ++-----
> 1 file changed, 2 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index d3674d805a0a..8ab23fe98059 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -51,9 +51,7 @@
> #include "amdgpu_dm_irq.h"
> #include "dm_helpers.h"
> #include "amdgpu_dm_mst_types.h"
> -#if defined(CONFIG_DEBUG_FS)
> #include "amdgpu_dm_debugfs.h"
> -#endif
>
> #include "ivsrcid/ivsrcid_vislands30.h"
>
> @@ -4723,9 +4721,8 @@ amdgpu_dm_connector_late_register(struct drm_connector *connector)
> struct amdgpu_dm_connector *amdgpu_dm_connector =
> to_amdgpu_dm_connector(connector);
>
> -#if defined(CONFIG_DEBUG_FS)
> - connector_debugfs_init(amdgpu_dm_connector);
> -#endif
> + if (IS_ENABLED(CONFIG_DEBUG_FS))
> + connector_debugfs_init(amdgpu_dm_connector);
>
> return 0;
> }
> --
> 2.26.0
>
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