> -----Original Message-----
> From: Arnd Bergmann <a...@arndb.de>
> Sent: 2019/December/10, Tuesday 3:31 PM
> To: Wentland, Harry <harry.wentl...@amd.com>; Li, Sun peng (Leo)
> <sunpeng...@amd.com>; Deucher, Alexander
> <alexander.deuc...@amd.com>; Koenig, Christian
> <christian.koe...@amd.com>; Zhou, David(ChunMing)
> <david1.z...@amd.com>; David Airlie <airl...@linux.ie>; Daniel Vetter
> <dan...@ffwll.ch>; Liu, Zhan <zhan....@amd.com>
> Cc: Arnd Bergmann <a...@arndb.de>; Laktyushkin, Dmytro
> <dmytro.laktyush...@amd.com>; Lakha, Bhawanpreet
> <bhawanpreet.la...@amd.com>; Lei, Jun <jun....@amd.com>; Liu,
> Charlene <charlene....@amd.com>; Yang, Eric <eric.ya...@amd.com>;
> Cornij, Nikola <nikola.cor...@amd.com>; amd-...@lists.freedesktop.org;
> dri-devel@lists.freedesktop.org; linux-ker...@vger.kernel.org
> Subject: [PATCH] drm/amd/display: fix undefined struct member reference
>
> An initialization was added for two optional struct members. One of these is
> always present in the dcn20_resource file, but the other one depends on
> CONFIG_DRM_AMD_DC_DSC_SUPPORT and causes a build failure if that is
> missing:
>
> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_resource.c:926:1
> 4: error: excess elements in struct initializer [-Werror]
> .num_dsc = 5,
>
> Add another #ifdef around the assignment.
>
> Fixes: c3d03c5a196f ("drm/amd/display: Include num_vmid and num_dsc
> within NV14's resource caps")
> Signed-off-by: Arnd Bergmann <a...@arndb.de>
Thank you for catching that 😊 On my side I kept that flag enabled all the time,
so I didn't realize there was a warning hidden here.
Reviewed-by: Zhan Liu <zhan....@amd.com>
> ---
> drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> index faab89d1e694..fdf93e6edf43 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> @@ -923,7 +923,9 @@ static const struct resource_caps res_cap_nv14 = {
> .num_dwb = 1,
> .num_ddc = 5,
> .num_vmid = 16,
> +#ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT
> .num_dsc = 5,
> +#endif
> };
>
> static const struct dc_debug_options debug_defaults_drv = {
> --
> 2.20.0
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