K 10
svn:author
V 6
tuexen
K 8
svn:date
V 27
2019-09-09T16:07:47.310225Z
K 7
svn:log
V 276
Only update SACK/DSACK lists when a non-empty segment was received.
This fixes hitting a KASSERT with a valid packet exchange.

Reviewed by:		rrs@, Richard Scheffenegger
MFC after:		3 days
Sponsored by:		Netflix, Inc.
Differential Revision:	https://reviews.freebsd.org/D21567

END