linux-kernel - Re: [PATCH 3.17-rc4 v6 2/6] arm: fiq: Replace default FIQ handler

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Date:	Tue, 16 Sep 2014 16:57:38 +0100
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Daniel Thompson <daniel.thompson@...aro.org>
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	patches@...aro.org, linaro-kernel@...ts.linaro.org,
	John Stultz <john.stultz@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Sumit Semwal <sumit.semwal@...aro.org>,
	Catalin Marinas <catalin.marinas@....com>
Subject: Re: [PATCH 3.17-rc4 v6 2/6] arm: fiq: Replace default FIQ handler

On Tue, Sep 16, 2014 at 12:00:12AM +0100, Daniel Thompson wrote:
> On 14/09/14 12:57, Daniel Thompson wrote:
> > This patch introduces a new default FIQ handler that is structured in a
> > similar way to the existing ARM exception handler and result in the FIQ
> > being handled by C code running on the SVC stack (despite this code run
> > in the FIQ handler is subject to severe limitations with respect to
> > locking making normal interaction with the kernel impossible).
> > 
> > This default handler allows concepts that on x86 would be handled using
> > NMIs to be realized on ARM.
> > 
> > Credit:
> > 
> >     This patch is a near complete re-write of a patch originally
> >     provided by Anton Vorontsov. Today only a couple of small fragments
> >     survive, however without Anton's work to build from this patch would
> >     not exist. Thanks also to Russell King for spoonfeeding me a variety
> >     of fixes during the review cycle.
> 
> I've send this patch to the your patch tracker as complete respin (#8150/2).
> 
> If you'd rather handle it as a follow on patch please let me know and I
> will prepare it as one.

Thanks, as you will see, I've merged this patch, along with my two
patches, one removing do_unexp_fiq() and the newline removal in
show_regs().  They should be appearing in a linux-next rsn.

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