From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S939440AbXGSPgi (ORCPT ); Thu, 19 Jul 2007 11:36:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932094AbXGSPg2 (ORCPT ); Thu, 19 Jul 2007 11:36:28 -0400 Received: from nic.NetDirect.CA ([216.16.235.2]:57036 "EHLO rubicon.netdirect.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1765899AbXGSPg1 (ORCPT ); Thu, 19 Jul 2007 11:36:27 -0400 X-Originating-Ip: 72.143.66.27 Date: Thu, 19 Jul 2007 11:34:21 -0400 (EDT) From: "Robert P. J. Day" X-X-Sender: rpjday@localhost.localdomain To: Arjan van de Ven cc: Stefan Richter , Linux Kernel Mailing List Subject: Re: does CONFIG_UNUSED_SYMBOLS have any value anymore? In-Reply-To: <469F7918.3000503@linux.intel.com> Message-ID: References: <469F749F.8030606@s5r6.in-berlin.de> <469F7918.3000503@linux.intel.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Net-Direct-Inc-MailScanner-Information: Please contact the ISP for more information X-Net-Direct-Inc-MailScanner: Found to be clean X-Net-Direct-Inc-MailScanner-SpamCheck: not spam, SpamAssassin (not cached, score=-36.8, required 5, autolearn=not spam, ALL_TRUSTED -1.80, BAYES_00 -15.00, INIT_RECVD_OUR_AUTH -20.00) X-Net-Direct-Inc-MailScanner-From: rpjday@mindspring.com Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 19 Jul 2007, Arjan van de Ven wrote: > Stefan Richter wrote: > > Robert P. J. Day wrote: > > ... > > > it's not clear if that means that it was a *one-time* transition > > > aid which is now unnecessary, or whether it's an *ongoing* aid which > > > might be used at any time. currently, there are no invocations of > > > EXPORT_UNUSED_SYMBOL[_GPL] anywhere in the tree. so does that mean > > > this feature can be tossed? or might it still be used every so often? > > it's one of those pieces of infrastructure that get used from time > to time to phase out symbol exports... we should be more agressive > about that; about 1/3rd of the exports is not used by anything in > linux, yet each symbol costs about 100 bytes of memory at runtime. ok, so maybe its removal file entry should be deleted if it's going to hang around. your call. rday -- ======================================================================== Robert P. J. Day Linux Consulting, Training and Annoying Kernel Pedantry Waterloo, Ontario, CANADA http://fsdev.net/wiki/index.php?title=Main_Page ========================================================================