From: David S. Miller <davem@huronp11.davemloft.net>
Date: Wed, 6 Feb 2008 11:50:26 +0000 (-0800)
Subject: [SPARC64]: Temporarily remove IOMMU merging code.
X-Git-Tag: v2.6.25-rc1~519^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=38192d52f159bc06b7f523800c10b583cdd661d5;p=pandora-kernel.git

[SPARC64]: Temporarily remove IOMMU merging code.

Changeset fde6a3c82d67f592eb587be4d12222b0ae6d4321 ("iommu sg merging:
sparc64: make iommu respect the segment size limits") broke sparc64
because whilst it added the segment limiting code to the first pass of
SG mapping (in prepare_sg()) it did not add matching code to the
second pass handling (in fill_sg())

As a result the two passes disagree where the segment boundaries
should be, resulting in OOPSes, DMA corruption, and corrupted
superblocks.

Signed-off-by: David S. Miller <davem@davemloft.net>
---

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