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

From: Russell King - ARM Linux
Date: Tue Sep 16 2014 - 11:57:52 EST


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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