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=-2.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 3CE68C169C4 for ; Mon, 11 Feb 2019 13:25:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 02F3D2184E for ; Mon, 11 Feb 2019 13:25:42 +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="kZp/FFFN" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727829AbfBKNZk (ORCPT ); Mon, 11 Feb 2019 08:25:40 -0500 Received: from bombadil.infradead.org ([198.137.202.133]:37078 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727473AbfBKNZj (ORCPT ); Mon, 11 Feb 2019 08:25:39 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Content-Transfer-Encoding: MIME-Version:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=241WfaVALdT/S8dzhbRmGfT6lkYWBdbO9x1Wi/qJFQ4=; b=kZp/FFFNvAOzhaVbg6GBmxoUD v/yHlYssVC5Pt7wAns1csvgAFAACDCNJo/TyfQAUzUHXmmIOPYQ4P8ARR8Gozty/jepmsmtcMFD7v RgPRnh/+1kT/YnMroMdjhOQI7IQAl0D2aLGTeoF1m/aPhn2O/FGVK/P+cVUXkWqDzvx25TKYlYrSe U4ZfQm7PucKGYfdpOuoyM31p3bdeX9a/5ezBCezFxFVTThZ1H6HkMUwm/LGNmhftCqQo8XVUHbwHb qgxa4Pf0btdHnU12ocu0f51RZxGnAQEkfWiX2BXQGgCte2E2VOAoDN0IUggrvNB8QU03tqtZqXmoC 5DYPGmwLg==; Received: from 089144210182.atnat0019.highway.a1.net ([89.144.210.182] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1gtBab-0003ge-Mz; Mon, 11 Feb 2019 13:25:38 +0000 From: Christoph Hellwig To: Greg Kroah-Hartman , Jiri Slaby Cc: linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org Subject: RFC: drop ISA support in the synlink tty driver? Date: Mon, 11 Feb 2019 14:25:33 +0100 Message-Id: <20190211132534.29407-1-hch@lst.de> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 Hi Greg and Jiri, I've been working hard to get rid of the remaining callers the pass a NULL struct device to the DMA mapping functions and am almost done. The only non-trivial driver is the synclink driver, which has legacy early 90s style ISA support that doesn't use the device model at all. In theory we could convert it to an isa_driver, but without testing that seems rather dangerous. So for now I would suggest that we remove the ISA support in this driver - if anyone cares enough we can resurrect it from the git history and convert it to use the driver model.