linux-kernel - Re: [PATCH v3 4/4] firmware: Add support for Qualcomm UEFI Secure Application

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Date:   Thu, 29 Jun 2023 14:26:19 +0200
From:   Johan Hovold <johan@...nel.org>
To:     Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc:     Maximilian Luz <luzmaximilian@...il.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Andy Gross <agross@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Ard Biesheuvel <ardb@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Sudeep Holla <sudeep.holla@....com>,
        Ilias Apalodimas <ilias.apalodimas@...aro.org>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Sumit Garg <sumit.garg@...aro.org>,
        Steev Klimaszewski <steev@...i.org>,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 4/4] firmware: Add support for Qualcomm UEFI Secure
 Application

On Tue, Mar 07, 2023 at 05:51:35PM +0200, Dmitry Baryshkov wrote:
> On 05/03/2023 04:21, Maximilian Luz wrote:

> > +static struct qcuefi_client *qcuefi_acquire(void)
> 
> Doesn't this need  the __locks annotation?

No, the mutex implementation does not use sparse annotation so adding
__acquires() here will instead introduce new warnings.

> > +{
> > +	mutex_lock(&__qcuefi_lock);
> > +	return __qcuefi;
> > +}

Johan