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Message-ID: <CA+ASDXNcC4_MpURRjbeXsyXsQ9Qte_YgoXFCJUKtrSWpZsHn-g@mail.gmail.com>
Date:   Tue, 9 Nov 2021 15:25:39 -0800
From:   Brian Norris <briannorris@...omium.org>
To:     Sasha Levin <sashal@...nel.org>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Leo Yan <leo.yan@...aro.org>,
        Chen-Yu Tsai <wenst@...omium.org>,
        Douglas Anderson <dianders@...omium.org>,
        Heiko Stuebner <heiko@...ech.de>, robh+dt@...nel.org,
        pawel.moll@....com, mark.rutland@....com,
        ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
        catalin.marinas@....com, will.deacon@....com,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org
Subject: Re: [PATCH AUTOSEL 5.15 17/82] arm64: dts: rockchip: add Coresight
 debug range for RK3399

On Tue, Nov 9, 2021 at 2:17 PM Sasha Levin <sashal@...nel.org> wrote:
>
> From: Brian Norris <briannorris@...omium.org>
>
> [ Upstream commit 75dccea503b8e176ad044175e891d7bb291b6ba0 ]
>
> Per Documentation/devicetree/bindings/arm/coresight-cpu-debug.txt.
>
> This IP block can be used for sampling the PC of any given CPU, which is
> useful in certain panic scenarios where you can't get the CPU to stop
> cleanly (e.g., hard lockup).

I don't understand why this is being backported to -stable. First of
all, it won't work because it's missing dependencies (specifically,
around the RK3399 clock driver). But even if it did, I don't see how
this is a candidate for -stable.

Methinks the AI has gone too far again.

Brian

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