linux-kernel - Re: [PATCH v3 3/4] kdb: Fix "btc <cpu>" crash if the CPU didn't round up

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Date:   Thu, 10 Oct 2019 09:38:04 -0700
From:   Doug Anderson <dianders@...omium.org>
To:     Daniel Thompson <daniel.thompson@...aro.org>
Cc:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Jason Wessel <jason.wessel@...driver.com>,
        kgdb-bugreport@...ts.sourceforge.net,
        Christophe Leroy <christophe.leroy@....fr>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 3/4] kdb: Fix "btc <cpu>" crash if the CPU didn't round up

Hi,

On Thu, Oct 10, 2019 at 8:07 AM Daniel Thompson
<daniel.thompson@...aro.org> wrote:
> > Reading through other control flows of the various backtrace commands,
> > it looks like it is intentional to leave the current task changed when
> > you explicitly do an action on that task (or a CPU).
> >
> > Actually, though, it wasn't clear to me that it ever made sense for
> > any of these commands to implicitly leave the current task changed.
> > If you agree, I can send a follow-up patch to change this behavior.
>
> Personally I don't like implicit changes of state but I might need a bit
> more thinking to agree (or disagree ;-) ).

I can post up a followup after this series lands and change it.  I
have a feeling nobody is relying on the old behavior and thus nobody
will notice but it would be nice to get this cleaner.

BTW: if you want me to spin to fix the commit message typo that Will
found or add his Ack to the series, let me know.  Otherwise I'll
assume that the typo can be fixed and Acks added when the patch is
applied.

-Doug