iommu/vt-d: Fix missing IOTLB flush in intel_iommu_unmap()
authorDavid Woodhouse <dwmw2@infradead.org>
Mon, 9 Jun 2014 13:09:53 +0000 (14:09 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 11 Jun 2014 18:54:14 +0000 (11:54 -0700)
commit51d20e1096a711f8cfa9d98a3ac2dd2c7c0fc20c
treea328b861addf931f15d70003440c0c76c4d3ecbc
parentf10acdb935fa79b48719e0a7bf284b7c1e5bf776
iommu/vt-d: Fix missing IOTLB flush in intel_iommu_unmap()

Based on commit ea8ea460c9ace60bbb5ac6e5521d637d5c15293d upstream

This missing IOTLB flush was added as a minor, inconsequential bug-fix
in commit ea8ea460c ("iommu/vt-d: Clean up and fix page table clear/free
behaviour") in 3.15. It wasn't originally intended for -stable but a
couple of users have reported issues which turn out to be fixed by
adding the missing flush.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
drivers/iommu/intel-iommu.c