[PATCH] drm/amd/display: fix unused variable warning

[Harry Wentland]

On 2021-01-25 7:48 a.m., Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd at arndb.de>
> 
> After all users of the 'dm' warnings got hidden in an #ifdef,
> the compiler started warning about it being unused:
> 
> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:5380:33: error: unused variable 'dm' [-Werror,-Wunused-variable]
> 
> Add another such #ifdef.
> 
> Fixes: 98ab5f3513f9 ("drm/amd/display: Fix deadlock during gpu reset v3")
> Signed-off-by: Arnd Bergmann <arnd at arndb.de>

Reviewed-by: Harry Wentland <harry.wentland at amd.com>

Harry

> ---
>   drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 ++
>   1 file changed, 2 insertions(+)
> 
> 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 a90dc4d31c32..37bf2dd87e1e 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -5377,7 +5377,9 @@ static inline int dm_set_vblank(struct drm_crtc *crtc, bool enable)
>   	struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
>   	struct amdgpu_device *adev = drm_to_adev(crtc->dev);
>   	struct dm_crtc_state *acrtc_state = to_dm_crtc_state(crtc->state);
> +#if defined(CONFIG_DRM_AMD_DC_DCN)
>   	struct amdgpu_display_manager *dm = &adev->dm;
> +#endif
>   	int rc = 0;
>   
>   	if (enable) {
>