Kip Macy 0fe48d670f A flowtable entry can continue referencing an llentry indefinitely if the entry is repeatedly
referenced within its timeout window. This change clears the LLE_VALID flag when an llentry
is removed from an interface's hash table and adds an extra check to the flowtable code
for the LLE_VALID flag in llentry to avoid retaining and using a stale reference.

Reviewed by:	qingli@
MFC after:	2 weeks
2012-01-26 20:02:40 +00:00
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