[GIT PULL] mtd: spi-nor: Changes for 4.11

[Heiner Kallweit]

Am 10.02.2017 um 14:07 schrieb Marek Vasut:
> On 02/10/2017 07:39 AM, Heiner Kallweit wrote:
>> Am 10.02.2017 um 03:46 schrieb Brian Norris:
>>> On Wed, Feb 08, 2017 at 11:09:39AM -0800, Brian Norris wrote:
>>>> On Wed, Feb 08, 2017 at 11:36:10AM +0100, Cyrille Pitchen wrote:
>>>>> Le 08/02/2017 à 06:52, Heiner Kallweit a écrit :
>>>>>> Am 08.02.2017 um 02:09 schrieb Marek Vasut:
>>>>>>> On 02/07/2017 04:31 PM, Cyrille Pitchen wrote:
>>>>> [...]
>>>>>>>> Heiner Kallweit (1):
>>>>>>>>       mtd: m25p80: consider max message size in m25p80_read
>>>>>>>
>>>>>>> I cannot say I'm super-happy about this particular patch, still ...
>>>>>>>
>>>>>> W/o it at least the fsl-espi driver is broken for transfers >= 64kB.
>>>>>>
>>> [...]
>>>
>>>> One thing I do object to: why is this change marked for stable? It's not
>>>> our fault you broke your duct-taped-together SPI driver in 4.9. I don't
>>>> think backporting features is the way to satisfy the -stable
>>>> requirements. Maybe some reverts would be the right way...
>>>
>> The patch was submitted in Aug 2016 already and there was also an inquiry
>> to get it into 4.9:
>> http://lists.infradead.org/pipermail/linux-mtd/2016-September/069363.html
>>
>> But due to whatever circumstances nothing happened and there was no
>> response.
> 
> Is that a bugfix ?
> 
Certain changes to the fsl-espi driver and the patch we're talking about
here were supposed to go into the same kernel release.
The driver changes made it to mainline months ago, the m25p80 patch not.
So yes, we have a bug in 4.9, transfers >= 64k fail on fsl-espi.