Messages in this thread Patch in this message | | | From | Parav Pandit <> | Subject | [PATCH v1] vdpa: Consider device id larger than 31 | Date | Tue, 30 Nov 2021 06:29:49 +0200 |
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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> --- changelog: v0->v1: - supporting device id up to 63 --- 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 7332a74a4b00..09bbe53c3ac4 100644 --- a/drivers/vdpa/vdpa.c +++ b/drivers/vdpa/vdpa.c @@ -404,7 +404,8 @@ 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++; } -- 2.26.2
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