linux-kernel - Re: [PATCH V7 2/2] soc: qcom: aoss: Add debugfs entry

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Message-ID: <CAE-0n500=1tF2V8nTTfPH3P-wCm8xs-J+9pLK=xfeOc1p=PB5A@mail.gmail.com>
Date:   Mon, 30 Aug 2021 16:02:26 -0700
From:   Stephen Boyd <swboyd@...omium.org>
To:     Deepak Kumar Singh <deesin@...eaurora.org>,
        bjorn.andersson@...aro.org, clew@...eaurora.org,
        sibis@...eaurora.org
Cc:     linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-remoteproc@...r.kernel.org, Andy Gross <agross@...nel.org>
Subject: Re: [PATCH V7 2/2] soc: qcom: aoss: Add debugfs entry

Quoting Deepak Kumar Singh (2021-08-30 04:37:31)
> Some user space clients may require to change power states of various
> parts of hardware. Add a debugfs node for qmp so messages can be sent
> to aoss from user space.
>
> Signed-off-by: Chris Lew <clew@...eaurora.org>
> Signed-off-by: Deepak Kumar Singh <deesin@...eaurora.org>
> ---

NAK. We don't want userspace to treat debugfs as an ABI. See
https://lore.kernel.org/r/CAE-0n52YXvTzvK4B3Aggg1fcRyjy=+HzNADP315-J0iJ8bMWUQ@mail.gmail.com