| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.15 057/177] vdpa: Consider device id larger than 31 | Date | Mon, 20 Dec 2021 15:33:27 +0100 |
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From: Parav Pandit <parav@nvidia.com>
[ 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@intel.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Parav Pandit <parav@nvidia.com> Acked-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20211130042949.88958-1-parav@nvidia.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/vdpa/vdpa.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
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++; } -- 2.33.0
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