Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964791AbWEBQYw (ORCPT ); Tue, 2 May 2006 12:24:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964861AbWEBQYw (ORCPT ); Tue, 2 May 2006 12:24:52 -0400 Received: from fmr19.intel.com ([134.134.136.18]:42409 "EHLO orsfmr004.jf.intel.com") by vger.kernel.org with ESMTP id S964791AbWEBQYv (ORCPT ); Tue, 2 May 2006 12:24:51 -0400 Message-ID: <4457877F.5000406@linux.intel.com> Date: Tue, 02 May 2006 18:23:27 +0200 From: Arjan van de Ven User-Agent: Thunderbird 1.5 (Windows/20051201) MIME-Version: 1.0 To: "Randy.Dunlap" CC: akpm@osdl.org, bunk@stusta.de, linux-kernel@vger.kernel.org Subject: Re: [patch 1/17] Infrastructure to mark exported symbols as unused-for-removal-soon References: <1146581587.32045.41.camel@laptopd505.fenrus.org> <20060502092440.91fe8797.rdunlap@xenotime.net> In-Reply-To: <20060502092440.91fe8797.rdunlap@xenotime.net> 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 Content-Length: 1526 Lines: 36 Randy.Dunlap wrote: > On Tue, 02 May 2006 16:53:07 +0200 Arjan van de Ven wrote: > >> Hi, >> As discussed on lkml before; the patch with the infrastructure to deprecate unused symbols >> >> This is patch one in a series of 17; to not overload lkml the other 16 will be mailed direct; >> people who want to see them all can see them at http://www.fenrus.org/unused >> >> >> >> This patch temporarily adds EXPORT_UNUSED_SYMBOL and EXPORT_UNUSED_SYMBOL_GPL. >> These will be used as transition measure for symbols that aren't used in the >> kernel and are on the way out. When a module uses such a symbol, a warning >> is printk'd at modprobe time. >> >> The main reason for removing unused exports is size: eacho export takes roughly >> between 100 and 150 bytes of kernel space in the binary. This patch gives >> users the option to immediately get this size gain via a config option. > > Do the exports take any space at runtime in RAM? yes; roughly 100 to 150 bytes or so > scsi patch comments (only one that I have seen) say: > +EXPORT_UNUSED_SYMBOL(scsi_print_status); /* removal in 2.6.19 */ > > and When: above says "before 2.6.19". Those don't agree. > Please fix. Thanks. there's no conflict actually; they'll be gone in 2.6.19, by removing them just before that ;) - 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/