linux-kernel - Re: [PATCH v3 03/23] media: iris: Avoid updating frame size to firmware during reconfig

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: <d14e93b5-5bf6-97b2-a35b-c8f05665d678@quicinc.com>
Date: Fri, 2 May 2025 19:18:38 +0530
From: Dikshita Agarwal <quic_dikshita@...cinc.com>
To: Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Vikash Garodia
	<quic_vgarodia@...cinc.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        "Mauro Carvalho Chehab" <mchehab@...nel.org>,
        Stefan Schmidt
	<stefan.schmidt@...aro.org>,
        Hans Verkuil <hverkuil@...all.nl>,
        "Bjorn
 Andersson" <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>,
        "Rob Herring" <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        "Conor Dooley" <conor+dt@...nel.org>
CC: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
        Neil Armstrong
	<neil.armstrong@...aro.org>,
        Nicolas Dufresne
	<nicolas.dufresne@...labora.com>,
        <linux-media@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <20250417-topic-sm8x50-iris-v10-v7-0-f020cb1d0e98@...aro.org>,
        <20250424-qcs8300_iris-v5-0-f118f505c300@...cinc.com>,
        <stable@...r.kernel.org>
Subject: Re: [PATCH v3 03/23] media: iris: Avoid updating frame size to
 firmware during reconfig



On 5/2/2025 5:48 PM, Bryan O'Donoghue wrote:
> On 01/05/2025 20:13, Dikshita Agarwal wrote:
>> During reconfig, the firmware sends the resolution aligned to 8 bytes.
>> If the driver sends the same resolution back to the firmware the resolution
>> will be aligned to 16 bytes not 8.
> My question here is why there's an alignment mismatch between the APSS and
> firmware at all ?
> 
It's not about the mismatch between APPS and firmware.
It's about how firmware handles this, it's not expecting the driver to set
the resolution after reconfig.

Thanks,
Dikshita
> ---
> bod