Commit f333a15a authored Mar 25, 2013 by Tony Cheneau Committed by David S. Miller Mar 26, 2013

6lowpan: always enable link-layer acknowledgments



This feature is especially important when using fragmentation, because
the reassembly mechanism cannot recover from the loss of a fragment.

Note that some hardware ignore this flag and not will not transmit
acknowledgments even if this is set.

Signed-off-by: Tony Cheneau <tony.cheneau@amnesiak.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent f5c20f58

net/ieee802154/6lowpan.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -584,6 +584,10 @@ static int lowpan_header_create(struct sk_buff *skb,

		mac_cb(skb)->flags = IEEE802154_FC_TYPE_DATA;

		/* request acknowledgment when possible */
		if (!lowpan_is_addr_broadcast(daddr))
		mac_cb(skb)->flags \|= MAC_CB_FLAG_ACKREQ;

		return dev_hard_header(skb, lowpan_dev_info(dev)->real_dev,
		type, (void )&da, (void )&sa, skb->len);
		}