On Thu, 2017-11-02 at 23:56:32 UTC, Michael Ellerman wrote:
> The QS21/22 IBM Cell blades had a southbridge chip called Axon. This
> could have DDR DIMMs attached to it, though they were not directly
> usable as RAM, instead they could be used as some sort of buffer, if
> applications were written specifically to use the block device
> provided by the driver.
>
> Although the driver supposedly had direct access support, it was
> apparently never tested (see commit 91117a20245b ("axonram: Fix bug in
> direct_access")).
>
> These machines have not been available for over 5 years, and were
> never widely in use. It seems highly unlikely anyone is using this
> driver.
>
> In general we're happy to leave old drivers in the tree, but because
> DAX is involved this driver is caught up in the ongoing work in that
> area, but none of the DAX folks are able to test it.
>
> So remove the driver, if any one *is* using it, we'll be happy to put
> it back.
>
> Signed-off-by: Michael Ellerman <m...@ellerman.id.au>
Applied to powerpc next.
https://git.kernel.org/powerpc/c/1d65b1c886be6111f2347bd1a548be
cheers
