Received: by 2002:a25:f815:0:0:0:0:0 with SMTP id u21csp2093107ybd; Mon, 24 Jun 2019 00:16:45 -0700 (PDT) X-Google-Smtp-Source: APXvYqyRGcr+LuPRYTXVBYplvUW1TorfRt/fP9jrau/j4wUO4asg8jxZ6LDmizRbWtM98Wmtmgck X-Received: by 2002:a17:902:b186:: with SMTP id s6mr35640382plr.343.1561360605646; Mon, 24 Jun 2019 00:16:45 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1561360605; cv=none; d=google.com; s=arc-20160816; b=jovIPKCpvadPwM0jyggYHgF76E0jjxOwW7PefKI2fqnKW2YhH/2DQIPd5tYgVeBLb6 L0sqZh7CNC/lIFxmngh1z+o3peZHnGTfEZ+NbDnF2/GSD+PsedaseeZf0y+R51hq5vfE ezKcj0cHaA1xZS2t7q4F7I0+Hw0PUO4BCNsVPHL0/K1x99tION/udWhO7uGdq3OrAHmS RuPI6/UkTrSYZ2V7usV/W/y7YRnqLxepJouPjJTD9XfIr1GBn1aHZDpd+62mHKl+LBhM QMsrAz00JhGo+4kpr5LW6yPOU5IKuEGCEEbFgyCidb6lBwYfz0JJxSXEmO9verYzWr2B ZpcQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:dkim-signature; bh=sTDPzJdQTdSiPCHzqzHaHeH/qwWP4YYe0phj0zN+apc=; b=vs/FNRJfUEc6u9vKLHQxsN3RvOgAwexmDCCB1vLo/FJIKupsRMGsaMriMFYYMkUAQT xvXm+6UcBBcIXHPyCR7+fkQOjfoypXUqxRhzo6Jy0feK6C6VK4N4iGJNsLChU3XpUMUZ izTn+bUkyZ9Nuvo42UXq3yfzSHJXCYW3bub7Ba9b67OG0i2eZiwgMFTH1osWLkexK9+S nALOa5KQAz5Ru+IQ47Ju98p+f8tPVIvZL8xnfqxysHis3hd+yiKBvrfUMpDxkx/DXy5i Aq60mAP4LkjHw7pX6bkGpYDgdC/jALrjZCZBLjD37fW9H4VriwfIxlDibe7i3pN0Rve4 lWLg== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@infradead.org header.s=bombadil.20170209 header.b=PzI2K5Uz; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id g14si9992868pgo.579.2019.06.24.00.16.30; Mon, 24 Jun 2019 00:16:45 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=fail header.i=@infradead.org header.s=bombadil.20170209 header.b=PzI2K5Uz; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727270AbfFXG6b (ORCPT + 99 others); Mon, 24 Jun 2019 02:58:31 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:48876 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726399AbfFXG6b (ORCPT ); Mon, 24 Jun 2019 02:58:31 -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=sTDPzJdQTdSiPCHzqzHaHeH/qwWP4YYe0phj0zN+apc=; b=PzI2K5UzA9qfQuq9sc8Suuwdo 4c5wpeB76u+bYtLBw0EI2J8CLDXMloPA06LqYxjjHtPEKCu5OfBpopAZvdaj1sbU/2hMLFtPcBjj6 T8GKgwS5mqzjBCwwB3z7HHprfC84MnjRrM7CXWCciBTps127JL8I/oP1KEvyQA6JkPvWZudDjT97V R35mFdnTG/j9boDjC+wzQefnRGDfxH11yIAtEGihKsQfA2xRiyEc3zaH5rHKPjbFGmWMq1tvxkD+R HcUklyupmVg7OCOEakDWXHoB/26Dqqi0XcFLQ1p3Pp6NyKBqNK7F1FMhfhEeMFT0KfhxuV4BOxw98 r5bzm1HnQ==; Received: from hch by bombadil.infradead.org with local (Exim 4.92 #3 (Red Hat Linux)) id 1hfIvt-0006Bh-PY; Mon, 24 Jun 2019 06:58:29 +0000 Date: Sun, 23 Jun 2019 23:58:29 -0700 From: Christoph Hellwig To: Oded Gabbay Cc: Christoph Hellwig , Greg KH , "Linux-Kernel@Vger. Kernel. Org" Subject: Re: [PATCH v2 8/8] habanalabs: enable 64-bit DMA mask in POWER9 Message-ID: <20190624065829.GA23605@infradead.org> References: <20190611092144.11194-1-oded.gabbay@gmail.com> <20190611095857.GB24058@kroah.com> <20190611151753.GA11404@infradead.org> <20190611152655.GA3972@kroah.com> <20190616095554.GA5156@infradead.org> <20190617081943.GA11274@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.11.4 (2019-03-13) 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 Because as a matter of policy the driver has no business knowing the actual bridge. Even if we'd agree that a driver workaround would be the right thing it has to be discoverable by an actual interface and not a system type or root port PCI ID.