Re: Backport of spi-fsl-spi bugfix to 3.14.y

From: Greg Kroah-Hartman
Date: Sun Jan 25 2015 - 12:39:05 EST


On Fri, Jan 23, 2015 at 12:45:29PM +0000, Mark Brown wrote:
> On Tue, Jan 06, 2015 at 10:15:47PM +0100, Esben Haabendal wrote:
> > On 5 January 2015 at 16:48, Mark Brown <broonie@xxxxxxxxxx> wrote:
>
> > >> Please consider commit 4302a59629f7a0bd70fd1605d2b558597517372a
> > >> (spi: fsl: Fix problem with multi message transfers) for inclusion in
> > >> stable kernel 3.14.
>
> > >> It fixes a regression when using mmc_spi driver on top of spi-fsl-spi
> > >> driver (tested with powerpc mpc8313 based board).
>
> > > Has this ever worked?
>
> > Yes, I have used mmc_spi with spi-fsl-spi on the same board with success
> > with in 2.6.33, 3.0 and 3.4.
>
> > I have no idea what has caused this to break. Maybe mmc_spi driver was
> > not doing multi message transfers earlier?
>
> So, I now see this has actually been merged into stable without getting
> to the bottom of why it's helping anything... this is a bit worrying
> since it's adding new functionality and not really a bug fix. It'd have
> been good to at least get a followup here.

Do you want me to revert something from the stable tree? If so, has it
also been reverted upstream?

confused,

greg k-h
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