This is a note to let you know that I've just added the patch titled vdpa: Consider device id larger than 31 to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: vdpa-consider-device-id-larger-than-31.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 53e50ac8c9028f5e34971169cca1d01aeeba4d3f Author: Parav Pandit <parav@xxxxxxxxxx> Date: Tue Nov 30 06:29:49 2021 +0200 vdpa: Consider device id larger than 31 [ Upstream commit bb47620be322c5e9e372536cb6b54e17b3a00258 ] virtio device id value can be more than 31. Hence, use BIT_ULL in assignment. Fixes: 33b347503f01 ("vdpa: Define vdpa mgmt device, ops and a netlink interface") Reported-by: kernel test robot <lkp@xxxxxxxxx> Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> Signed-off-by: Parav Pandit <parav@xxxxxxxxxx> Acked-by: Jason Wang <jasowang@xxxxxxxxxx> Link: https://lore.kernel.org/r/20211130042949.88958-1-parav@xxxxxxxxxx Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/vdpa/vdpa.c b/drivers/vdpa/vdpa.c index 1dc121a07a934..12bf3d16a40ff 100644 --- a/drivers/vdpa/vdpa.c +++ b/drivers/vdpa/vdpa.c @@ -353,7 +353,8 @@ 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++; }