The logic to determine the mask of page-specific invalidations was
tested in userspace. As the code was copied into the kernel, the
parentheses were mistakenly set in the wrong place, resulting in the
wrong mask.

Fix it.

Cc: Joerg Roedel <joro@8bytes.org>
Cc: Will Deacon <will@kernel.org>
Cc: Jiajun Cao <caojiajun@vmware.com>
Cc: iommu@lists.linux-foundation.org
Cc: linux-kernel@vger.kernel.org
Fixes: 268aa454 ("iommu/amd: Page-specific invalidations for more than one page")
Signed-off-by: Nadav Amit <namit@vmware.com>
Link: https://lore.kernel.org/r/20210502070001.1559127-2-namit@vmware.comSigned-off-by: Joerg Roedel <jroedel@suse.de>