From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alan Cox Subject: Re: [PATCH] ata: ahci: power off unused ports Date: Mon, 2 Jun 2008 08:04:40 +0100 Message-ID: <20080602080440.25fc663c@core> References: <20080508161008.59361de5@appleyard> <20080527030854.GC7515@mit.edu> <20080527143202.4bab5bf0@appleyard> <20080527225926.GE6843@mit.edu> <20080527163251.04054a74@appleyard> <20080531080015.GG5405@ucw.cz> <4842F5A8.9020708@garzik.org> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Received: from earthlight.etchedpixels.co.uk ([81.2.110.250]:42656 "EHLO lxorguk.ukuu.org.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750936AbYFBHUC (ORCPT ); Mon, 2 Jun 2008 03:20:02 -0400 In-Reply-To: <4842F5A8.9020708@garzik.org> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Jeff Garzik Cc: Pavel Machek , Kristen Carlson Accardi , Theodore Tso , linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org > If you are talking about SATA -- incorrect. > > The patch deals with policy, and the user MUST have the ability to > control this stuff. Otherwise you create a situation where the user > might be denied hotplug use in valid cases, or similar negative situations. The policy isn't however complicated. Tejun added the stuff for forcing cable type and mode on setup and has therefore written all the per device setup code we might need. Alternatively a single foo=1/0 option has been fine for acpi and will do fine for this. Total additional cost - 1 line. Alan