linux-kernel - Re: [PATCH 3/6] drm/msm/dpu: Disable scaling for unsupported scaler types

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <a56tw3xxxn5u54hs4pt64b5ljlp26x23lvftu2tblwpvuzx5xh@quyr7xyn7sn6>
Date: Tue, 28 Oct 2025 23:25:35 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Vladimir Lypak <vladimir.lypak@...il.com>
Cc: Rob Clark <robin.clark@....qualcomm.com>,
        Dmitry Baryshkov <lumag@...nel.org>,
        Abhinav Kumar <abhinav.kumar@...ux.dev>,
        Jessica Zhang <jessica.zhang@....qualcomm.com>,
        Sean Paul <sean@...rly.run>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
        Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
        Kalyan Thota <quic_kalyant@...cinc.com>,
        Vinod Polimera <quic_vpolimer@...cinc.com>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Barnabás Czémán <barnabas.czeman@...nlining.org>,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/6] drm/msm/dpu: Disable scaling for unsupported scaler
 types

On Fri, Oct 17, 2025 at 07:58:37PM +0000, Vladimir Lypak wrote:
> Scaling is not implemented for some type of scalers (QSEED2 and RGB) but
> it was unintentionally re-enabled with change below. The remaining
> condition in dpu_plane_atomic_check_pipe is not enough because it only
> checks for length of scaler block (which is present). This patch adds a
> additional check for setup_scaler operation.

Nit: in future please refrain from using constructions like 'This patch
makes foo' (see Documentation/process/submitting-patches.rst).

For this patch:

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>


> 
> Fixes: 8f15005783b8 ("drm/msm/dpu: move scaling limitations out of the hw_catalog")
> Signed-off-by: Vladimir Lypak <vladimir.lypak@...il.com>
> ---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 

-- 
With best wishes
Dmitry