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[lwip-devel] LWIP_DEBUGF in update_arp_entry

From: bill
Subject: [lwip-devel] LWIP_DEBUGF in update_arp_entry
Date: Wed, 1 Oct 2008 12:52:19 -0400

In the code below, why is there an | 3 in the first LWIP_DEBUF?

static err_t

update_arp_entry(struct netif *netif, struct ip_addr *ipaddr, struct eth_addr *ethaddr, u8_t flags)


  s8_t i;

  LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE | 3, ("update_arp_entry()\n"));





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