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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 12254C4360C for ; Thu, 10 Oct 2019 09:10:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D76AD2190F for ; Thu, 10 Oct 2019 09:10:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570698643; bh=V3zr+ZXU6ZhM0Uibhq8ct+Em8IKMgto52jOF6Bnvq5I=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=JtNeIDaYSEprdBHjQunKEAgkE2WVaojoxtSsIqYcYToaehP190hPpZDWx8szToy+P ELNFq3oBs0cAByI/NTS9PGQzvbNpI07ZAe/kO5X7DhyVWUpV2FMngH062ggu0rT0sE shrqU7pTg7fGljUT2VPUoB+d5h0KCafzORRT8uYg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1733259AbfJJJKn (ORCPT ); Thu, 10 Oct 2019 05:10:43 -0400 Received: from mail.kernel.org ([198.145.29.99]:41352 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1733254AbfJJJKn (ORCPT ); Thu, 10 Oct 2019 05:10:43 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 1A6932067B; Thu, 10 Oct 2019 09:10:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570698642; bh=V3zr+ZXU6ZhM0Uibhq8ct+Em8IKMgto52jOF6Bnvq5I=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=T1bY6Te5yLOv7NsrTHNGNQMuLdhpDlrnYgXvn/MeUdUAP35iC2on6upmRxncfJwOu xXKjswiogbmIVTIlXqohS10argJY3P97Zzn/4JwzDmMKJIyGixleBApenhXUB2O0If 41qntA+47iUQD5MT89jwNOGmWRkZjZKUI1D7qXJ8= Date: Thu, 10 Oct 2019 11:10:39 +0200 From: Greg Kroah-Hartman To: Russell King - ARM Linux admin Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org, Adrian Hunter , Ulf Hansson Subject: Re: [PATCH 5.3 076/148] mmc: sdhci-of-esdhc: set DMA snooping based on DMA coherence Message-ID: <20191010091039.GA467648@kroah.com> References: <20191010083609.660878383@linuxfoundation.org> <20191010083615.965680999@linuxfoundation.org> <20191010084912.GI25745@shell.armlinux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191010084912.GI25745@shell.armlinux.org.uk> User-Agent: Mutt/1.12.2 (2019-09-21) Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On Thu, Oct 10, 2019 at 09:49:12AM +0100, Russell King - ARM Linux admin wrote: > Hi Greg, > > On 5th October, Christian Zigotzky reported a > problem with this on PowerPC (at a guess, it looks like there's a > PowerPC user of this where the DT does not mark the device as > dma-coherent, but the hardware requires it to be DMA coherent.) > > However, despite sending a reply to him within minutes of his email > arriving, I've heard nothing since, so there's been no progress on > working out what is really going on. > > Given that the reporter hasn't responded to my reply, I'm not sure > what we should be doing with this... maybe the reporter has solved > his problem, maybe he was using an incorrect DT, we just don't know. Let's just leave this in, and if this did cause a problem, whatever fix is made will be sent to Linus and we can then take that fix into stable as well. thanks, greg k-h