linux-kernel - Re: [PATCH v2 1/3] usb: notify hcd when USB device suspend or resume

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <Pine.LNX.4.44L0.1505131013380.1674-100000@iolanthe.rowland.org>
Date:	Wed, 13 May 2015 10:14:37 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	"Lu, Baolu" <baolu.lu@...ux.intel.com>
cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Mathias Nyman <mathias.nyman@...el.com>,
	<linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 1/3] usb: notify hcd when USB device suspend or resume

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@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/