Commit 84b514dc authored by Parav Pandit's avatar Parav Pandit Committed by Pengyuan Zhao
Browse files

vdpa: Consider device id larger than 31 

stable inclusion
from stable-v5.16
commit bb47620b
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I5WXCZ
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=bb47620be322c5e9e372536cb6b54e17b3a00258


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

virtio device id value can be more than 31. Hence, use BIT_ULL in
assignment.

Fixes: 33b34750 ("vdpa: Define vdpa mgmt device, ops and a netlink interface")
Reported-by: default avatarkernel test robot <lkp@intel.com>
Reported-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: default avatarParav Pandit <parav@nvidia.com>
Acked-by: default avatarJason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20211130042949.88958-1-parav@nvidia.com


Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: default avatarPengyuan Zhao <zhaopengyuan@hisilicon.com>
parent 21ab9f0d

drivers/vdpa/vdpa.c

+2 −1
Original line number Diff line number Diff line
@@ -421,7 +421,8 @@ static int vdpa_mgmtdev_fill(const struct vdpa_mgmt_dev *mdev, struct sk_buff *m 
		goto msg_err;



	while (mdev->id_table[i].device) {

		supported_classes |= BIT(mdev->id_table[i].device);

		if (mdev->id_table[i].device <= 63)

			supported_classes |= BIT_ULL(mdev->id_table[i].device);

		i++;

	}