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=-2.1 required=3.0 tests=DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,T_DKIM_INVALID, USER_AGENT_MUTT 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 189ACC433F5 for ; Wed, 29 Aug 2018 22:38:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AD7D420644 for ; Wed, 29 Aug 2018 22:38:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="CGjVqfEk" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AD7D420644 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=roeck-us.net Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727427AbeH3Ch1 (ORCPT ); Wed, 29 Aug 2018 22:37:27 -0400 Received: from mail-pg1-f193.google.com ([209.85.215.193]:44285 "EHLO mail-pg1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727181AbeH3Ch1 (ORCPT ); Wed, 29 Aug 2018 22:37:27 -0400 Received: by mail-pg1-f193.google.com with SMTP id r1-v6so2942564pgp.11; Wed, 29 Aug 2018 15:38:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=QUC+zu03Ys8NwoGYGSRew4rLmTQGVI1WF6OOL6Zrlc0=; b=CGjVqfEkCNmboQ9QLOqEt+0JsUitE18CR6y49Nr14xj7sItDA0Cf09UGJ0oUBWQlzC UDAqniilVnIEoWpDPjKh78kniLakCoxcY6ZSmcl7GUiOObMFdCTAx+AFWeAlflSUZrDv beNHszianJUr3BYQgTTH8+qw0DtdLAYv0xVgE/oc7Cn5JhklbxTS7gxl+67ME5qqnQBI AXxhyfdT5Jcjwk+GhMNWdFSoaFtQZA+1VstIvRlfVq00CC2RDv3Se37Qu+fBjYwl7IqD lSP/sKPI8BYg3fSy4Uw2OQCWijG2t3nQVRy5rpKvq5yoINdid7AicMSAWgUltik5U6r0 e7Vg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to:user-agent; bh=QUC+zu03Ys8NwoGYGSRew4rLmTQGVI1WF6OOL6Zrlc0=; b=DQkVAoLbL5sZSPA2bCwdKY29L2TOhxV9Iam1yRj5HAS3tBc5bT8pgSemYtWo81DRPK CeX7Jo+NVnUjPfyN+uSqX6//mrSBPl06X9ffUFGIMHik8llBP8bV2t/tA/Ey8LmZ7ZDh KSqn8zlMqeXXVPZt/9yuDkDk3v9L09/Tf88+vUwIhop27eCc/FnmzG9khMJ/B3fyhIMd sxPp8yJxww2lef5T5x1DdEx3s3q0/gMM/uNc8ZOTIb+aHe9FYh2BW6N6mhMx+7Ijtf5m ZmuvnmOz7e9mFxXN66rUV1ys08HjlK60Er6CIOXy8viENeuHoE3mdi0Yu/FPmGXfNbQm jhtQ== X-Gm-Message-State: APzg51CyqrmarPuEgfA/5/NDcFbtPBKp0wW0kQCMHT9fWdqTGh4bi85t FIcz1eTXsAgf5Voh5EJu7j4= X-Google-Smtp-Source: ANB0VdZGNIIKvpBBx/W3r8/z0HmoF4Iz0x/kGjjXrXxbzsMfAB1NKfregBXFWEbgQnxkPIdS2ghupw== X-Received: by 2002:a62:9f4c:: with SMTP id g73-v6mr7763760pfe.142.1535582304220; Wed, 29 Aug 2018 15:38:24 -0700 (PDT) Received: from localhost (108-223-40-66.lightspeed.sntcca.sbcglobal.net. [108.223.40.66]) by smtp.gmail.com with ESMTPSA id 82-v6sm9194613pfw.159.2018.08.29.15.38.22 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 29 Aug 2018 15:38:23 -0700 (PDT) Date: Wed, 29 Aug 2018 15:38:21 -0700 From: Guenter Roeck To: Christoph Hellwig Cc: iommu@lists.linux-foundation.org, Robin Murphy , Meelis Roos , Linus Walleij , sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: various dma_mask fixups Message-ID: <20180829223821.GA29499@roeck-us.net> References: <20180829062401.8701-1-hch@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180829062401.8701-1-hch@lst.de> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Aug 29, 2018 at 08:23:58AM +0200, Christoph Hellwig wrote: > Fix warnings and regressions from requiring a dma mask. With this series applied, I see the following in my sh4 boot tests. sb 1-1: new full-speed USB device number 2 using sm501-usb sm501-usb sm501-usb: OHCI Unrecoverable Error, disabled sm501-usb sm501-usb: HC died; cleaning up This is a persistent problem. Reverting upstream commit 2f606da7823 ("mfd: sm501: Set coherent_dma_mask when creating subdevices") does not make a difference. The problem is gone if I do not apply 'driver core: initialize a default DMA mask for platform device'. On the plus side, the sparc warnings are gone. Guenter