linux-kernel - Re: [PATCH] arm64: remove dead code

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Message-ID: <1437154979.1657.23.camel@infradead.org>
Date:	Fri, 17 Jul 2015 10:42:59 -0700
From:	Geoff Levand <geoff@...radead.org>
To:	Ard Biesheuvel <ard.biesheuvel@...aro.org>
Cc:	Mark Salter <msalter@...hat.com>,
	Takahiro Akashi <takahiro.akashi@...aro.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	Mark Rutland <mark.rutland@....com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] arm64: remove dead code

Hi,

On Fri, 2015-07-17 at 08:50 +0200, Ard Biesheuvel wrote:
> > On 16 July 2015 at 19:58, Mark Salter <msalter@...hat.com> wrote:
> >> Commit 68234df4ea79 ("arm64: kill flush_cache_all()") removed
> >> soft_reset() from the kernel. This was the only caller of
> >> setup_mm_for_reboot(), so remove that also.
> >
> > I am wondering if setup_mm_for_reboot() is being used in the kexec
> > patches. Perhaps we should check that before removing it.

The whole CPU reset support that kexec was using was removed.

I started on reimplementing a new cpu_reset() routine (in my
master branch at [1]), but I can only work on it when I have
some extra time, and these days that is not very often.

[1] https://git.kernel.org/cgit/linux/kernel/git/geoff/linux-kexec.git/

-Geoff

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