From: Jesse Brandeburg <jesse.brandeburg@intel.com>
Date: Fri, 14 Nov 2008 13:51:54 +0000 (+0000)
Subject: e100: fix dma error in direction for mapping
X-Git-Tag: v2.6.28-rc6~62^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=773c9c1f77174429ad2feb1735a3beb33ff3b6c0;p=pandora-kernel.git

e100: fix dma error in direction for mapping

The e100 driver triggers BUG_ON(buf->direction != dir)
by doing pci_map_single(..., PCI_DMA_BIDIRECTIONAL)
and pci_dma_sync_single_for_device(..., PCI_DMA_TODEVICE).

Changing the DMA direction, especially with dmabounce will result
in unexpected behaviour.

Reported-by: Anders Grafstrom <grfstrm@users.sourceforge.net>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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