[PATCH net-next 03/15] 6lowpan: always enable link-layer acknowledgments
DORMANTno replies
From: Tony Cheneau <hidden>
Date: 2012-10-23 04:09:45
Subsystem:
ieee 802.15.4 subsystem, networking [general], the rest · Maintainers:
Alexander Aring, Stefan Schmidt, Miquel Raynal, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
This feature is especially important when using fragmentation, because the reassembly mechanism can not recover from the loss of a fragment. Note that some hardware ignore this flag and not will not transmit any acknowledgments if this is set. Signed-off-by: Tony Cheneau <redacted> --- net/ieee802154/6lowpan.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c
index b53a71a4..49d91df 100644
--- a/net/ieee802154/6lowpan.c
+++ b/net/ieee802154/6lowpan.c@@ -589,6 +589,10 @@ 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); }
--
1.7.8.6
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