From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933713AbWK0VcW (ORCPT ); Mon, 27 Nov 2006 16:32:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933692AbWK0VcW (ORCPT ); Mon, 27 Nov 2006 16:32:22 -0500 Received: from omx2-ext.sgi.com ([192.48.171.19]:8151 "EHLO omx2.sgi.com") by vger.kernel.org with ESMTP id S933661AbWK0VcV (ORCPT ); Mon, 27 Nov 2006 16:32:21 -0500 Date: Mon, 27 Nov 2006 13:32:05 -0800 (PST) From: Christoph Lameter To: "Robert P. J. Day" cc: Linux kernel mailing list , linux-ia64@vger.kernel.org Subject: Re: what is the purpose of "CONFIG_DMA_IS_DMA32"? In-Reply-To: Message-ID: References: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 27 Nov 2006, Robert P. J. Day wrote: > > perhaps a silly question, but: > > $ grep -r "DMA_IS_DMA32" * > arch/ia64/defconfig:CONFIG_DMA_IS_DMA32=y > arch/ia64/configs/sim_defconfig:CONFIG_DMA_IS_DMA32=y > arch/ia64/configs/zx1_defconfig:CONFIG_DMA_IS_DMA32=y > arch/ia64/configs/tiger_defconfig:CONFIG_DMA_IS_DMA32=y > arch/ia64/configs/bigsur_defconfig:CONFIG_DMA_IS_DMA32=y > arch/ia64/configs/gensparse_defconfig:CONFIG_DMA_IS_DMA32=y > $ > > what is the purpose of a configuration symbol that is set but never > involved in a conditional check? > > i'm guessing that used to be a config setting in the ia64/Kconfig > file that has since vanished. Correct that config setting was eliminated in the 2.6.19 development cycle. Refreshing the config files would be advisable. 5A