linux-kernel - Re: [PATCH v2 1/4] soc: qcom: aoss: Move length requirements from caller

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Message-ID: <074d2bf6-1f89-4ec9-80de-52deeb1c319f@linaro.org>
Date:   Sat, 12 Aug 2023 12:53:07 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Bjorn Andersson <quic_bjorande@...cinc.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Chris Lew <quic_clew@...cinc.com>
Cc:     Alex Elder <elder@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-remoteproc@...r.kernel.org,
        Andrew Lunn <andrew@...n.ch>
Subject: Re: [PATCH v2 1/4] soc: qcom: aoss: Move length requirements from
 caller

On 11.08.2023 22:58, Bjorn Andersson wrote:
> The existing implementation of qmp_send() requires the caller to provide
> a buffer which is of word-aligned. The underlying reason for this is
> that message ram only supports word accesses, but pushing this
> requirement onto the clients results in the same boiler plate code
> sprinkled in every call site.
> 
> By using a temporary buffer in qmp_send() we can hide the underlying
> hardware limitations from the clients and allow them to pass their
> NUL-terminates C string directly.
> 
> Signed-off-by: Bjorn Andersson <quic_bjorande@...cinc.com>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>

Konrad