Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030307AbWJPAET (ORCPT ); Sun, 15 Oct 2006 20:04:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030304AbWJPAET (ORCPT ); Sun, 15 Oct 2006 20:04:19 -0400 Received: from ozlabs.org ([203.10.76.45]:36481 "EHLO ozlabs.org") by vger.kernel.org with ESMTP id S1030301AbWJPAES (ORCPT ); Sun, 15 Oct 2006 20:04:18 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <17714.52121.962807.781244@cargo.ozlabs.ibm.com> Date: Mon, 16 Oct 2006 10:00:25 +1000 From: Paul Mackerras To: Andrew Morton Cc: Matthew Wilcox , Alan Cox , David Brownell , val_henson@linux.intel.com, netdev@vger.kernel.org, linux-pci@atrey.karlin.mff.cuni.cz, linux-kernel@vger.kernel.org, gregkh@suse.de Subject: Re: [Bulk] Re: [PATCH 1/2] [PCI] Check that MWI bit really did get set In-Reply-To: <20061015104544.5de31608.akpm@osdl.org> References: <1160161519800-git-send-email-matthew@wil.cx> <20061013214135.8fbc9f04.akpm@osdl.org> <20061014140249.GL11633@parisc-linux.org> <20061014134855.b66d7e65.akpm@osdl.org> <20061015032000.GP11633@parisc-linux.org> <20061015070809.978C714552@adsl-69-226-248-13.dsl.pltn13.pacbell.net> <1160922082.5732.51.camel@localhost.localdomain> <20061015135756.GD22289@parisc-linux.org> <20061015104544.5de31608.akpm@osdl.org> X-Mailer: VM 7.19 under Emacs 21.4.1 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 649 Lines: 17 Andrew Morton writes: > If the drivers doesn't care and if it makes no difference to performance > then just delete the call to pci_set_mwi(). > > But if MWI _does_ make a difference to performance then we should tell > someone that it isn't working rather than silently misbehaving? That sounds like we need a printk inside pci_set_mwi then, rather than adding a printk to every single caller. Paul. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/