Re: [PATCH AUTOSEL 5.15 17/82] arm64: dts: rockchip: add Coresight debug range for RK3399

[Brian Norris]

On Tue, Nov 9, 2021 at 2:17 PM Sasha Levin <sashal@xxxxxxxxxx> wrote:
>
> From: Brian Norris <briannorris@xxxxxxxxxxxx>
>
> [ 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