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=-8.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 EDF51C31E4D for ; Fri, 14 Jun 2019 13:48:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C3267217F4 for ; Fri, 14 Jun 2019 13:48:39 +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="Tpc9x4lP" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728365AbfFNNsi (ORCPT ); Fri, 14 Jun 2019 09:48:38 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:53828 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728566AbfFNNsf (ORCPT ); Fri, 14 Jun 2019 09:48:35 -0400 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:References:In-Reply-To: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:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=uJddLBdDNaWL4wSSvZ2YhjeFWIY1bS4Okt/V8tHSUJw=; b=Tpc9x4lPYqhK3XjIXO4GqJY9rv 9rJeQeQNbim7ZbrvzWwlYZe6uviPZA8B8PnxWsyT6JGwXhhBWJVdSZXfCFQexWetdjj9pyjlFh9xF NNuQWOD5YMIca+yt05/XIg8Wkq6pGz0Z85GD2RuHezWtfbKqQOoREoRWCESCbTHgW7AMp5BbVshrc pEh3xewVIl6LVjW2c5Fh7o0QsoPF6TFPCQBrS9GLC8RQ30e45tR99TsjbM05NZ0+J3y0gAw3KzjRt lGDsivXtuD6ZbALT0tjqUJ7bWzADYRpbOi1VBP2HP7AECc7ayAViL+6MV1bLNQPDXazLoyPeSUXcq WTLTT30Q==; Received: from 213-225-9-13.nat.highway.a1.net ([213.225.9.13] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.92 #3 (Red Hat Linux)) id 1hbmYv-0005Sj-P5; Fri, 14 Jun 2019 13:48:14 +0000 From: Christoph Hellwig To: Maarten Lankhorst , Maxime Ripard , Sean Paul , David Airlie , Daniel Vetter , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Ian Abbott , H Hartley Sweeten Cc: Intel Linux Wireless , linux-arm-kernel@lists.infradead.org (moderated list:ARM PORT), dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, linux-rdma@vger.kernel.org, linux-media@vger.kernel.org, netdev@vger.kernel.org, linux-wireless@vger.kernel.org, linux-s390@vger.kernel.org, devel@driverdev.osuosl.org, linux-mm@kvack.org, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org Subject: [PATCH 12/16] staging/comedi: mark as broken Date: Fri, 14 Jun 2019 15:47:22 +0200 Message-Id: <20190614134726.3827-13-hch@lst.de> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190614134726.3827-1-hch@lst.de> References: <20190614134726.3827-1-hch@lst.de> 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: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org comedi_buf.c abuse the DMA API in gravely broken ways, as it assumes it can call virt_to_page on the result, and the just remap it as uncached using vmap. Disable the driver until this API abuse has been fixed. Signed-off-by: Christoph Hellwig --- drivers/staging/comedi/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/staging/comedi/Kconfig b/drivers/staging/comedi/Kconfig index 049b659fa6ad..e7c021d76cfa 100644 --- a/drivers/staging/comedi/Kconfig +++ b/drivers/staging/comedi/Kconfig @@ -1,6 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 config COMEDI tristate "Data acquisition support (comedi)" + depends on BROKEN help Enable support for a wide range of data acquisition devices for Linux. -- 2.20.1