netdev - Re: [PATCH v2 0/7] USB: don't recover device if suspend fails in system sleep

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Message-ID: <20130307232401.GC10304@kroah.com>
Date:	Fri, 8 Mar 2013 07:24:01 +0800
From:	Greg KH <gregkh@...uxfoundation.org>
To:	David Miller <davem@...emloft.net>
Cc:	ming.lei@...onical.com, jkosina@...e.cz, stern@...land.harvard.edu,
	oneukum@...e.de, netdev@...r.kernel.org, linux-usb@...r.kernel.org,
	linux-input@...r.kernel.org
Subject: Re: [PATCH v2 0/7] USB: don't recover device if suspend fails in
 system sleep

On Thu, Mar 07, 2013 at 03:28:07PM -0500, David Miller wrote:
> From: Ming Lei <ming.lei@...onical.com>
> Date: Fri,  8 Mar 2013 00:15:17 +0800
> 
> > This patch adds comments on interface driver suspend callback
> > to emphasize that the failure return value is ignored by
> > USB core in system sleep context, so do not try to recover
> > device for this case, otherwise the recovery things may confuse
> > resume().
> > 
> > Also fixes the USB serial, HID and several usbnet drivers
> > which may recover device in suspend failure path of system sleep.
> > 
> > v2:
> > 	- improve comments on suspend callback as suggested by Alan
> > 	- update kerneldoc for usb_suspend_both as suggested by Alan
> > 	- remove previous check of PMSG_IS_AUTO(message) in cdc_mbim/
> > 	qmi_wwan and add comments on suspend failure case, since Bjørn
> > 	doesn't like the check.
> > 	- add comments on smsc95xx/smsc75xx
> > v1:
> >         - fix compile failure
> >         - add comments about handling suspend failure in resume()
> 
> Feel free to merge this via the USB tree and to add my ACK to the
> networking driver bits:
> 
> Acked-by: David S. Miller <davem@...emloft.net>

Thanks, I will do that.

greg k-h
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