From: Graf Yang <graf.yang@analog.com>
Date: Tue, 21 Jul 2009 02:26:57 +0000 (+0000)
Subject: Blackfin: fix MPU handling of invalid memory accesses
X-Git-Tag: v2.6.32-rc1~662^2~40
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=36b841288656b9b30b5d2add2fd136ac7eab5867;p=pandora-kernel.git

Blackfin: fix MPU handling of invalid memory accesses

The protect_page() function was incorrectly setting up the hardware tables
based on possible access capabilities rather than the actual requested
values.  This means we would grant more access to mmap-ed pages than we
should have.  Once we fix this, we need to tweak the signal generated by
such accesses to aline ourselves with other ports.  This allows the LTP
mmap0{5,6,7} cases to run properly.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---

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