[PATCH v2 2/3] mtd: m25p80: consider max message size in m25p80_read

Michal Suchanek hramrach at gmail.com
Fri Dec 23 13:04:40 PST 2016


Hello,

On 23 December 2016 at 19:53, Marek Vasut <marek.vasut at gmail.com> wrote:
> On 12/23/2016 04:33 PM, Cyrille Pitchen wrote:
>> Le 17/08/2016 à 21:09, Heiner Kallweit a écrit :
>>> Consider a message size limit when calculating the maximum amount
>>> of data that can be read.
>>>
>>> Signed-off-by: Heiner Kallweit <hkallweit1 at gmail.com>
>>
>> Applied to git://github.com/spi-nor/linux.git
>
> Is that the concensus now that we should fix controller crappiness on
> driver level ? Or did I miss the point of this patch ?
>

In general most controllers do have some limit on the amount of data
they can transfer at once.

For some you can apply workaround at controller driver level and for
some it's not practical.

Also for some the limit is lower so it is more likely hit.

I guess you can call controllers that have both of these limitations
crappy but that's what's in the silicone out there.

If you have better solution to the problem please share it in detail.

Thanks

Michal



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