From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0AC2DC2D0DB for ; Thu, 30 Jan 2020 15:45:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C6F1020674 for ; Thu, 30 Jan 2020 15:45:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="Vjug28tK" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727391AbgA3Ppe (ORCPT ); Thu, 30 Jan 2020 10:45:34 -0500 Received: from bombadil.infradead.org ([198.137.202.133]:43894 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727186AbgA3Ppd (ORCPT ); Thu, 30 Jan 2020 10:45:33 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=rRsa7asAoT2EF7p8LcPXpdUKtc2FvIavKqi2DprRKjs=; b=Vjug28tKKj/KaA/PTpSPmlXiH iPzNjTvr8muoqV4hBrVgYWjwe+dXfFgMepmfHSIDUrVE/mORDGA8mJ+Z76fLK7/y+SWvs92/zpO/g b7YOwOtKhIs3YJp01JO2bKXYDfmryyvlHqRZ3mROQrDowH7e1EUA9u6bOK7cP3wo2O6VOvNKiJ42g oiyXBdzS+/lXYnaXisPF1cCaYi9EyiP+KpYs7cMZm3P9mOm4OBM1fBNYCkk1QasPOUaQEAOyi8lkG W9yjHUylopMXmkoaUX+HThjFUz9bTVfF4Rb3bgyavvDbdDAkSN2b789pHXk67MsoS1puar7Liesjc OGRPSFMig==; Received: from hch by bombadil.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1ixC0Y-0000VG-IR; Thu, 30 Jan 2020 15:45:30 +0000 Date: Thu, 30 Jan 2020 07:45:30 -0800 From: Christoph Hellwig To: Quentin Perret Cc: masahiroy@kernel.org, nico@fluxnic.net, linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org, maennich@google.com, kernel-team@android.com Subject: Re: [PATCH] kbuild: allow symbol whitelisting with TRIM_UNUSED_KSYMS Message-ID: <20200130154530.GA7452@infradead.org> References: <20200129150612.19200-1-qperret@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200129150612.19200-1-qperret@google.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jan 29, 2020 at 03:06:12PM +0000, Quentin Perret wrote: > CONFIG_TRIM_UNUSED_KSYMS currently removes all unused exported symbols > from ksymtab. This works really well when using in-tree drivers, but > cannot be used in its current form if some of them are out-of-tree. NAK. The state policy is that we don't care for out of tree modules, and this is useful for nothing but. In fact we should remove the CONFIG_TRIM_UNUSED_KSYMS=n option soon.