From: Anton Blanchard <anton@samba.org>
Date: Sat, 29 Jan 2011 12:24:34 +0000 (+0000)
Subject: powerpc/numa: Only use active VPHN count fields
X-Git-Tag: v2.6.38-rc4~3^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5de1669910a59025e6cf24baef242a6c264d5752;p=pandora-kernel.git

powerpc/numa: Only use active VPHN count fields

VPHN supports up to 8 distance fields but the number of entries in
ibm,associativity-reference-points signifies how many are in use.
Don't look at all the VPHN counts, only distance_ref_points_depth
worth.

Since we already cap our distance metrics at MAX_DISTANCE_REF_POINTS,
use that to size the VPHN arrays and add a BUILD_BUG_ON to avoid it growing
larger than the VPHN maximum of 8.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---

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