From: Ohad Ben-Cohen <ohad@wizery.com>
Date: Tue, 27 Sep 2011 11:36:40 +0000 (-0400)
Subject: iommu/core: let drivers know if an iommu fault handler isn't installed
X-Git-Tag: v3.2-rc1~117^2^4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0ed6d2d27bcc2ace454a8c55446e1bc3efd2d529;p=pandora-kernel.git

iommu/core: let drivers know if an iommu fault handler isn't installed

Make report_iommu_fault() return -ENOSYS whenever an iommu fault
handler isn't installed, so IOMMU drivers can then do their own
platform-specific default behavior if they wanted.

Fault handlers can still return -ENOSYS in case they want to elicit the
default behavior of the IOMMU drivers.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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