linux-kernel - Re: [PATCH] drm/amd/display: fix link

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Date:   Thu, 9 Feb 2023 09:31:25 -0500
From:   Alex Deucher <alexdeucher@...il.com>
To:     Arnd Bergmann <arnd@...nel.org>
Cc:     Harry Wentland <harry.wentland@....com>,
        Leo Li <sunpeng.li@....com>,
        Rodrigo Siqueira <Rodrigo.Siqueira@....com>,
        Arnd Bergmann <arnd@...db.de>,
        Qingqing Zhuo <qingqing.zhuo@....com>,
        "Pan, Xinhui" <Xinhui.Pan@....com>,
        Wenjing Liu <wenjing.liu@....com>,
        linux-kernel@...r.kernel.org, amd-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org, George Shen <George.Shen@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>
Subject: Re: [PATCH] drm/amd/display: fix link_validation build failure

Applied.  Thanks!

Alex

On Thu, Feb 9, 2023 at 7:45 AM Arnd Bergmann <arnd@...nel.org> wrote:
>
> From: Arnd Bergmann <arnd@...db.de>
>
> When CONFIG_DRM_AMD_DC_DCN is disabled, the is_frl member
> is not defined:
>
> drivers/gpu/drm/amd/amdgpu/../display/dc/link/link_validation.c: In function 'dp_active_dongle_validate_timing':
> drivers/gpu/drm/amd/amdgpu/../display/dc/link/link_validation.c:126:66: error: 'const struct dc_dsc_config' has no member named 'is_frl'
>   126 |                         if (timing->flags.DSC && !timing->dsc_cfg.is_frl)
>       |                                                                  ^
>
> Use the same #ifdef as the other references to this.
>
> Fixes: 54618888d1ea ("drm/amd/display: break down dc_link.c")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---
>  drivers/gpu/drm/amd/display/dc/link/link_validation.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/display/dc/link/link_validation.c b/drivers/gpu/drm/amd/display/dc/link/link_validation.c
> index cd821d077d73..8ddebf3bdd46 100644
> --- a/drivers/gpu/drm/amd/display/dc/link/link_validation.c
> +++ b/drivers/gpu/drm/amd/display/dc/link/link_validation.c
> @@ -123,9 +123,11 @@ static bool dp_active_dongle_validate_timing(
>                 if (dongle_caps->dp_hdmi_frl_max_link_bw_in_kbps > 0) { // DP to HDMI FRL converter
>                         struct dc_crtc_timing outputTiming = *timing;
>
> +#if defined(CONFIG_DRM_AMD_DC_DCN)
>                         if (timing->flags.DSC && !timing->dsc_cfg.is_frl)
>                                 /* DP input has DSC, HDMI FRL output doesn't have DSC, remove DSC from output timing */
>                                 outputTiming.flags.DSC = 0;
> +#endif
>                         if (dc_bandwidth_in_kbps_from_timing(&outputTiming) > dongle_caps->dp_hdmi_frl_max_link_bw_in_kbps)
>                                 return false;
>                 } else { // DP to HDMI TMDS converter
> --
> 2.39.1
>