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=-2.3 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=unavailable 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 84E32C282DA for ; Mon, 15 Apr 2019 05:51:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4B9842073F for ; Mon, 15 Apr 2019 05:51:14 +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="UKpX/udC" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726180AbfDOFvN (ORCPT ); Mon, 15 Apr 2019 01:51:13 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:43670 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725777AbfDOFvM (ORCPT ); Mon, 15 Apr 2019 01:51:12 -0400 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=iVxXrYcFE2vJjuCK1yGc026zEMHQoQ9eI52sBK7Aa4E=; b=UKpX/udCRAZjP6CoPv6Ksncf2 PulbRGWCkHm4QtgV9I2WfEE4T+8kQwxACPKiHpVZf6q8ZCHv6x/at3ByDUGLIGIfPdqaC6oDrRk3W MhXVorBHyts8objHwJCFF4fCy5aUTy/3db7qFPWyJxaFJrnv3O5xuact+pYo4Rr10l5xrFbbXxX6w +ar0DCZ2a9fnxEuwiwC4GECpE/McqSzHdAldTJXBRCxDw17QrjzPVXqxCpXWkaqyLras1lSuMo/Do n+DhWx9XDyZo+hZ37Hnjn3F97+x6VsY0NHqpdAQ9b5cmXLxpEBcLlFGUYhMfTwW9MYpi8weO8MJnE 93h+wx4ew==; Received: from hch by bombadil.infradead.org with local (Exim 4.90_1 #2 (Red Hat Linux)) id 1hFuWL-0002Ko-C2; Mon, 15 Apr 2019 05:51:09 +0000 Date: Sun, 14 Apr 2019 22:51:09 -0700 From: Christoph Hellwig To: Heinrich Schuchardt Cc: Russell King , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH 1/1] arm: mm: Export __sync_icache_dcache() for xen-privcmd Message-ID: <20190415055109.GB9279@infradead.org> References: <20190413163052.11407-1-xypron.glpk@gmx.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190413163052.11407-1-xypron.glpk@gmx.de> User-Agent: Mutt/1.9.2 (2017-12-15) 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 Sat, Apr 13, 2019 at 06:30:52PM +0200, Heinrich Schuchardt wrote: > This patch avoids > ERROR: "__sync_icache_dcache" [drivers/xen/xen-privcmd.ko] undefined! > observed when compiling v4.19.34. > > The xen-privcmd driver, which can be modular, calls set_pte_at() > which in turn may call __sync_icache_dcache(). Maybe that really is a sign that it should not be modular..