stable inclusion
from linux-4.19.194
commit 5fdb418b14e41b33880b949db64b18f1f448916b

--------------------------------

[ Upstream commit 45add3cc ]

UEFI spec 2.9, p.108, table 4-1 lists the scenario that both attributes
are cleared with the description "No memory access protection is
possible for Entry". So we can have valid entries where both attributes
are cleared, so remove the check.
Signed-off-by: NHeiner Kallweit <hkallweit1@gmail.com>
Fixes: 10f0d2f5 ("efi: Implement generic support for the Memory Attributes table")
Signed-off-by: NArd Biesheuvel <ardb@kernel.org>
Signed-off-by: NSasha Levin <sashal@kernel.org>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>