NET_XMIT_MASK 128 include/linux/netdevice.h if (likely(rc < NET_XMIT_MASK)) NET_XMIT_MASK 3390 net/core/dev.c rc = q->enqueue(skb, q, &to_free) & NET_XMIT_MASK; NET_XMIT_MASK 3433 net/core/dev.c rc = q->enqueue(skb, q, &to_free) & NET_XMIT_MASK;