DPAA2_SWITCH_NEEDED_HEADROOM
if (unlikely(skb_headroom(skb) < DPAA2_SWITCH_NEEDED_HEADROOM)) {
ns = skb_realloc_headroom(skb, DPAA2_SWITCH_NEEDED_HEADROOM);
port_netdev->needed_headroom = DPAA2_SWITCH_NEEDED_HEADROOM;