From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3E6091A08B0 for ; Thu, 29 Jan 2015 07:15:46 +1100 (AEDT) Date: Wed, 28 Jan 2015 14:15:33 -0600 From: Segher Boessenkool To: Scott Wood Subject: Re: [PATCH v2] powerpc/mpic: Add DT option to skip readback after EOI Message-ID: <20150128201533.GA10436@gate.crashing.org> References: <1422371952-1126-1-git-send-email-bogdan.purcareata@freescale.com> <1422395873.10544.61.camel@freescale.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <1422395873.10544.61.camel@freescale.com> Cc: linuxppc-dev@lists.ozlabs.org, Bogdan Purcareata , linux-kernel@vger.kernel.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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