From: Baruch Siach <baruch@tkos.co.il>
Date: Wed, 13 May 2015 08:17:38 +0000 (+0300)
Subject: mtd: mxc_nand: fix truncate of unaligned oob copying
X-Git-Tag: omap-for-v4.2/fixes-rc1^2~143^2~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0d17fc3e998357469700e0782d253c31a6997505;p=pandora-kernel.git

mtd: mxc_nand: fix truncate of unaligned oob copying

Copy to/from oob io area might not be aligned to 4 bytes. When 8 bit ECC is
used, the buffer size is 26. Add memcpy16_{to,from}io, and use them to avoid
truncating the buffer. Prefer memcpy32_{to,from}io when the buffer is properly
aligned for better performance.

Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---

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