Marcelo Ricardo Leitner 07b4d6a174 sctp: do not update a_rwnd if we are not issuing a sack ...

The SACK can be lost pretty much elsewhere, but if its allocation fail,
we know we are not sending it, so it is better to revert a_rwnd to its
previous value as this may give it a chance to issue a window update
later.

Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2016-03-20 16:31:11 -04:00

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