From: Emil Tantilov <emil.s.tantilov@intel.com>
Date: Thu, 26 Jul 2012 01:21:24 +0000 (+0000)
Subject: ixgbe: fix panic while dumping packets on Tx hang with IOMMU
X-Git-Tag: v3.6-rc1~78^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9c50c0358f31f81dbcf7fa55089865f1efd9928d;p=pandora-kernel.git

ixgbe: fix panic while dumping packets on Tx hang with IOMMU

This patch resolves a "BUG: unable to handle kernel paging request at ..."
oops while dumping packet data. The issue occurs with IOMMU enabled due to
the address provided by phys_to_virt().

This patch makes use of skb->data on Tx and the virtual address of the pages
allocated for Rx.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@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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