PCI: hv: Add __aligned(8) to struct retarget_msi_interrupt

mainline inclusion
from mainline-5.0
commit 9bc1174280dd
category: bugfix
bugzilla: 12122
CVE: NA

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

Because Hyper-V requires that hypercall arguments be aligned on an 8
byte boundary, add __aligned(8) to struct retarget_msi_interrupt.

Link: https://lore.kernel.org/lkml/87k1hlqlby.fsf@vitty.brq.redhat.com/Signed-off-by: NMaya Nakamura <m.maya.nakamura@gmail.com>
Signed-off-by: NLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: NXiongfeng Wang <wangxiongfeng2@huawei.com>
Reviewed-by: NYao Hongbo <yaohongbo@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

drivers/pci/controller/pci-hyperv.c

@@ -420,7 +420,7 @@ struct retarget_msi_interrupt {
 	struct hv_interrupt_entry int_entry;
 	u64	reserved2;
 	struct hv_device_interrupt_target int_target;
-} __packed;
+} __packed __aligned(8);
 
 /*
  * Driver specific state.