linux-kernel - Re: [PATCH v2] powerpc/mpic: Add DT option to skip readback after EOI

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Message-ID: <20150128201533.GA10436@gate.crashing.org>
Date:	Wed, 28 Jan 2015 14:15:33 -0600
From:	Segher Boessenkool <segher@...nel.crashing.org>
To:	Scott Wood <scottwood@...escale.com>
Cc:	Bogdan Purcareata <bogdan.purcareata@...escale.com>,
	linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] powerpc/mpic: Add DT option to skip readback after EOI

On Tue, Jan 27, 2015 at 03:57:53PM -0600, Scott Wood wrote:
> At this point, given the previous discussion, does anyone object to
> removing the readback entirely?  Do we have any evidence that reading
> WHOAMI is effective at addressing whatever problem reading EOI made go
> away on the relevant platform?

What platforms were those?  Just test there!

If no one remembers, they can not (any longer) be important platforms ;-)
Just remove the code, and if in twelve months finally someone reports a
failure we will at least know what platform it was.


Segher
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