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(parent: d62efd4) | patch
iommu/vt-d: Fix off-by-one in PASID allocation
authorJacob Pan <jacob.jun.pan@linux.intel.com>
Thu, 2 Jan 2020 00:18:07 +0000 (08:18 +0800)
committerJoerg Roedel <jroedel@suse.de>
Tue, 7 Jan 2020 13:05:57 +0000 (14:05 +0100)
commit39d630e332144028f56abba83d94291978e72df1
tree0a9654d6dc5c904b2e4cfd58549838a073d979bdtree | snapshot
parentd62efd4fa62be50fa1ff4433a83b14c51d320a27commit | diff
iommu/vt-d: Fix off-by-one in PASID allocation

PASID allocator uses IDR which is exclusive for the end of the
allocation range. There is no need to decrement pasid_max.

Fixes: af39507305fb ("iommu/vt-d: Apply global PASID in SVA")
Reported-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
drivers/iommu/intel-svm.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git