MPLS_LABEL_DEPTH
if (label_count <= MPLS_LABEL_DEPTH)
if (label_count > MPLS_LABEL_DEPTH)
label_count = MPLS_LABEL_DEPTH;
__be32 lse[MPLS_LABEL_DEPTH]; /* label stack entry */
if (label_count == 0 || label_count > MPLS_LABEL_DEPTH ||