From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S938844AbXGSOsl (ORCPT ); Thu, 19 Jul 2007 10:48:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1765988AbXGSOrt (ORCPT ); Thu, 19 Jul 2007 10:47:49 -0400 Received: from mga06.intel.com ([134.134.136.21]:42503 "EHLO orsmga101.jf.intel.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1764491AbXGSOrr (ORCPT ); Thu, 19 Jul 2007 10:47:47 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.16,557,1175497200"; d="scan'208";a="268175082" Message-ID: <469F7918.3000503@linux.intel.com> Date: Thu, 19 Jul 2007 07:45:44 -0700 From: Arjan van de Ven User-Agent: Thunderbird 1.5 (Windows/20051201) MIME-Version: 1.0 To: Stefan Richter CC: "Robert P. J. Day" , Linux Kernel Mailing List Subject: Re: does CONFIG_UNUSED_SYMBOLS have any value anymore? References: <469F749F.8030606@s5r6.in-berlin.de> In-Reply-To: <469F749F.8030606@s5r6.in-berlin.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org 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.