[PATCH v4] mtd: nand: sunxi: fix OOB handling in ->write_xxx() functions

[Brian Norris]

On Mon, Sep 14, 2015 at 10:02:04AM -0700, Brian Norris wrote:
> On Mon, Sep 14, 2015 at 10:41:03AM +0200, Boris Brezillon wrote:
> > The USER_DATA register cannot be accessed using byte accessors on A13
> > SoCs, thus triggering a bug when using memcpy_toio on this register.
> > Declare an helper macros to convert an OOB buffer into a suitable
> > USER_DATA value and vice-versa.
> > 
> > This patch also fixes an error in the oob_required logic (some OOB data
> > are not written even if the user required it) by removing the
> > oob_required condition, which is perfectly valid since the core already
> > fill ->oob_poi with FFs when oob_required is false.
> > 
> > Signed-off-by: Boris Brezillon <boris.brezillon at free-electrons.com>
> > Cc: <stable at vger.kernel.org> # 3.19+
> > Fixes: 1fef62c1423b ("mtd: nand: add sunxi NAND flash controller support")
> > 
> > ---
> > Changes since v3:
> > - drop the NFC_USER_DATA_TO_BUF() macro
> 
> I don't have any real objections to this version, and I think some IRC
> discussion helped clear up a few questions. I'll take this for 4.3 soon,
> unless I see any objections.

Pushed to linux-mtd.git.