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Pointers should be casted to unsigned long to avoid "cast from pointer
to integer of different size" warnings.

drivers/iommu/intel-pasid.c:818:6: warning:
    cast from pointer to integer of different size [-Wpointer-to-int-cast]
drivers/iommu/intel-pasid.c:821:9: warning:
    cast from pointer to integer of different size [-Wpointer-to-int-cast]
drivers/iommu/intel-pasid.c:824:23: warning:
    cast from pointer to integer of different size [-Wpointer-to-int-cast]
drivers/iommu/intel-svm.c:343:45: warning:
    cast to pointer from integer of different size [-Wint-to-pointer-cast]

Fixes: b0d1f874 ("iommu/vt-d: Add nested translation helper function")
Fixes: 56722a43

 ("iommu/vt-d: Add bind guest PASID support")
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20200519013423.11971-1-baolu.lu@linux.intel.com

Signed-off-by: Joerg Roedel <jroedel@suse.de>