linux-kernel - Re: [PATCH v3] firmware: qcom_scm: use 64-bit calling convention only when client is 64-bit

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Date:   Wed, 27 Sep 2023 17:34:10 -0700
From:   Bjorn Andersson <andersson@...nel.org>
To:     Andy Gross <agross@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Elliot Berman <quic_eberman@...cinc.com>,
        Kathiravan Thirumoorthy <quic_kathirav@...cinc.com>
Cc:     linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org
Subject: Re: [PATCH v3] firmware: qcom_scm: use 64-bit calling convention only when client is 64-bit


On Mon, 25 Sep 2023 13:59:22 +0530, Kathiravan Thirumoorthy wrote:
> Per the "SMC calling convention specification", the 64-bit calling
> convention can only be used when the client is 64-bit. Whereas the
> 32-bit calling convention can be used by either a 32-bit or a 64-bit
> client.
> 
> Currently during SCM probe, irrespective of the client, 64-bit calling
> convention is made, which is incorrect and may lead to the undefined
> behaviour when the client is 32-bit. Let's fix it.
> 
> [...]

Applied, thanks!

[1/1] firmware: qcom_scm: use 64-bit calling convention only when client is 64-bit
      commit: 3337a6fea25370d3d244ec6bb38c71ee86fcf837

Best regards,
-- 
Bjorn Andersson <andersson@...nel.org>