linux-kernel - Re: [PATCH] Revert "soc: qcom: stats: Add DDR sleep stats"

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Message-ID: <cxrw3fc4jxd2zee655g4gi2eshqnwquhezcehnvwjuyt4qkihr@ganx5uwzc35r>
Date: Fri, 15 Dec 2023 22:35:03 -0600
From: Bjorn Andersson <andersson@...nel.org>
To: Konrad Dybcio <konrad.dybcio@...aro.org>
Cc: Andy Gross <agross@...nel.org>, Arnd Bergmann <arnd@...nel.org>, 
	linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Dmitry Baryshkov <dmitry.baryshkov@...aro.org>, Doug Anderson <dianders@...omium.org>
Subject: Re: [PATCH] Revert "soc: qcom: stats: Add DDR sleep stats"

On Sat, Dec 16, 2023 at 01:05:53AM +0100, Konrad Dybcio wrote:
> On 14.12.2023 13:25, Konrad Dybcio wrote:
> > After recent reports ([1], [2]) of older platforms (particularly 8150 and
> > 7180) breaking after DDR sleep stats introduction, revert the following:
> > 
> > Commit 73380e2573c3 ("soc: qcom: stats: fix 64-bit division")
> > Commit e84e61bdb97c ("soc: qcom: stats: Add DDR sleep stats")
> > 
> > The feature itself is rather useful for debugging DRAM power management,
> > however it looks like the shared RPMh stats data structures differ on
> > previous SoCs.
> > 
> > Revert its addition for now to un-break booting on these earlier SoCs,
> > while I try to come up with a better way to enable it conditionally.
> > 
> > [1] https://lore.kernel.org/linux-arm-msm/20231209215601.3543895-2-dmitry.baryshkov@linaro.org/
> > [2] https://lore.kernel.org/linux-arm-msm/CAD=FV=XX4wLg1NNVL15RK4D4tLvuSzZyUv=k_tS4bSb3=7QJzQ@mail.gmail.com/
> > 
> > Reported-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> > Reported-by: Doug Anderson <dianders@...omium.org>
> > Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
> > ---
> Arnd, since Bjorn seems to be MIA, could you please pick this directly
> so that it gets into the next RC? Un-breaking booting on some platforms
> would be very welcome :D
> 

I'm confused, the two offending commits are staged for v6.8. Which -rc
do you want this applied in?! And you posted this patch yesterday...

Regards,
Bjorn