linux-kernel - Re: [v3.9] [v3.10] [Regression] serial: 8250_pci: add support for another kind of NetMos Technology PCI 9835 Multi-I/O Controller

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Message-ID: <51D1CF18.80201@canonical.com>
Date:	Mon, 01 Jul 2013 14:48:56 -0400
From:	Joseph Salisbury <joseph.salisbury@...onical.com>
To:	Greg KH <gregkh@...uxfoundation.org>
CC:	udknight@...il.com, jslaby@...e.cz, alan@...ux.intel.com,
	matts@...mtech-fastcom.com, wfp5p@...ginia.edu,
	tklauser@...tanz.ch, linux-serial@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [v3.9] [v3.10] [Regression]  serial: 8250_pci: add support for
 another kind of NetMos Technology PCI 9835 Multi-I/O Controller

On 07/01/2013 12:27 PM, Greg KH wrote:
> On Mon, Jul 01, 2013 at 12:14:45PM -0400, Joseph Salisbury wrote:
>> Hi Wang,
>>
>> A bug was opened against the Ubuntu kernel[0].  After a kernel bisect,
>> it was found that reverting the following commit resolved this bug:
>>
>> commit 8d2f8cd424ca0b99001f3ff4f5db87c4e525f366
>> Author: Wang YanQing <udknight@...il.com>
>> Date:   Fri Mar 1 11:47:20 2013 +0800
>>
>>     serial: 8250_pci: add support for another kind of NetMos Technology
>> PCI 9835 Multi-I/O Controller
>>
>>
>> The regression was introduced as of v3.9-rc3 and still exists in the
>> current Mainline tree.  It was also propagated to the stable trees.
>>
>> The patch causes the device to use the serial module instead of
>> parport_serial.  Maybe the the quirk in ~drivers/pci/quirks.c
>> quirk_netmos() needs to be modified?
>>
>> I see that you are the author of this patch, so I wanted to run this by
>> you.  I was thinking of requesting a revert, but I wanted to get your
>> feedback first.
> You missed the conversation we had about this already this weekend :)
>
> The offending patch has already been reverted and will propagate to the
> stable trees soon.
>
> thanks,
>
> greg k-h
Good news.  Thanks for the help, Greg!
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