Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965435AbbEMOOl (ORCPT ); Wed, 13 May 2015 10:14:41 -0400 Received: from iolanthe.rowland.org ([192.131.102.54]:51086 "HELO iolanthe.rowland.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S965419AbbEMOOi (ORCPT ); Wed, 13 May 2015 10:14:38 -0400 Date: Wed, 13 May 2015 10:14:37 -0400 (EDT) From: Alan Stern X-X-Sender: stern@iolanthe.rowland.org To: "Lu, Baolu" cc: Greg Kroah-Hartman , Mathias Nyman , , Subject: Re: [PATCH v2 1/3] usb: notify hcd when USB device suspend or resume In-Reply-To: <5552B8AD.9020200@linux.intel.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 654 Lines: 17 On Wed, 13 May 2015, Lu, Baolu wrote: > From software point of view, the extra time it takes to ask for cache > operation can be measured in xhci_device_suspend(). I can measure > the data later when I complete my tasks in hand. If that data is ignorable > comparing to the suspend time, we can simply do it always. Or do it whenever the hardware doesn't support FSC. That seems reasonable. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/