dev_id_len
dev_id_len(tunnel_reg_ptr(®s, DP_TUNNELING_DEV_ID), DP_TUNNELING_DEV_ID_BYTES),
!descr->dev_id_len)
rdev->descr.dev_id = kmemdup(descr->dev_id, descr->dev_id_len,
.dev_id_len = sizeof(cid),
if (params[1].u.memref.size < rdev->descr.dev_id_len) {
memcpy(buf, rdev->descr.dev_id, rdev->descr.dev_id_len);
params[1].u.memref.size = rdev->descr.dev_id_len;
descr.dev_id_len = strlen(cid);
size_t dev_id_len;