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Do not empty entries unless allowed to in find_entry().
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@ -268,7 +268,6 @@ static s8_t find_entry(struct ip_addr *ipaddr, u8_t flags)
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/* recycle oldest stable*/
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i = old_stable;
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LWIP_DEBUGF(ETHARP_DEBUG | DBG_TRACE, ("find_entry: selecting oldest stable entry %d\n", i));
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arp_table[i].state = ARP_EMPTY;
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#if ARP_QUEUEING
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LWIP_ASSERT("arp_table[i].p == NULL", arp_table[i].p == NULL);
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#endif
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@ -277,7 +276,6 @@ static s8_t find_entry(struct ip_addr *ipaddr, u8_t flags)
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/* recycle oldest pending */
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i = old_pending;
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LWIP_DEBUGF(ETHARP_DEBUG | DBG_TRACE, ("find_entry: selecting oldest pending entry %d (without queue)\n", i));
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arp_table[i].state = ARP_EMPTY;
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/* 4) found recyclable pending entry with queued packets? */
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} else if (old_queue < ARP_TABLE_SIZE) {
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/* recycle oldest pending */
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