From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751203AbWIUNM5 (ORCPT ); Thu, 21 Sep 2006 09:12:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751211AbWIUNM5 (ORCPT ); Thu, 21 Sep 2006 09:12:57 -0400 Received: from mx1.redhat.com ([66.187.233.31]:6536 "EHLO mx1.redhat.com") by vger.kernel.org with ESMTP id S1751203AbWIUNM4 (ORCPT ); Thu, 21 Sep 2006 09:12:56 -0400 From: David Howells In-Reply-To: <1157786802.31071.171.camel@localhost.localdomain> References: <1157786802.31071.171.camel@localhost.localdomain> <20060908153236.21015.56106.stgit@warthog.cambridge.redhat.com> <20060908153240.21015.67367.stgit@warthog.cambridge.redhat.com> <20060909051211.GA6922@elte.hu> To: Benjamin Herrenschmidt Cc: Ingo Molnar , David Howells , torvalds@osdl.org, akpm@osdl.org, linux-kernel@vger.kernel.org, uclinux-dev@uclinux.org Subject: Re: [PATCH 2/3] FRV: Permit __do_IRQ() to be dispensed with X-Mailer: MH-E 8.0; nmh 1.1; GNU Emacs 22.0.50 Date: Thu, 21 Sep 2006 14:12:14 +0100 Message-ID: <339.1158844334@warthog.cambridge.redhat.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Benjamin Herrenschmidt wrote: > It can't optimize __do_IRQ() out in any case if one uses > generic_handle_irq() because of the test in there which can't be > predicted at compile time. Do you realise that powerpc still uses __do_IRQ if CONFIG_IRQSTACKS=y? You should probably fix that. David