From: Sonic Zhang <sonic.zhang@analog.com>
Date: Thu, 4 Nov 2010 08:01:37 +0000 (+0000)
Subject: Blackfin: no-mpu: fix masking of small uncached dma region
X-Git-Tag: v2.6.38-rc1~421^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=398834330cb07ba66fca5fb23a51075a67e4d4fa;p=pandora-kernel.git

Blackfin: no-mpu: fix masking of small uncached dma region

When using an uncached DMA region less than 1 MiB, we try to mask off
the whole last 1 MiB for it.  Unfortunately, this fails as we forgot
to subtract one from the calculated mask, leading to the region still
be marked as cacheable.

Reported-by: Andrew Rook <andrew.rook@speakerbus.co.uk>
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---

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