diff options
| author | Alan Ott <alan@signal11.us> | 2013-01-16 20:09:47 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-01-18 20:18:30 +0100 |
| commit | 0c446212c4f68e51ba03a9b172599437d6660a9d (patch) | |
| tree | e0bfe5d1e60431c631d6a43f8350415d325ca95e /net/ieee802154 | |
| parent | net: fec: enable pause frame to improve rx prefomance for 1G network (diff) | |
| download | linux-0c446212c4f68e51ba03a9b172599437d6660a9d.tar.xz linux-0c446212c4f68e51ba03a9b172599437d6660a9d.zip | |
6lowpan: Refactor packet delivery into a function
Refactor the handing of the skb's to the individual lowpan devices into a
function.
Signed-off-by: Alan Ott <alan@signal11.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ieee802154')
| -rw-r--r-- | net/ieee802154/6lowpan.c | 38 |
1 files changed, 24 insertions, 14 deletions
diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c index f651da60f161..1714cfab1220 100644 --- a/net/ieee802154/6lowpan.c +++ b/net/ieee802154/6lowpan.c @@ -594,10 +594,32 @@ static int lowpan_header_create(struct sk_buff *skb, } } +static int lowpan_give_skb_to_devices(struct sk_buff *skb) +{ + struct lowpan_dev_record *entry; + struct sk_buff *skb_cp; + int stat = NET_RX_SUCCESS; + + rcu_read_lock(); + list_for_each_entry_rcu(entry, &lowpan_devices, list) + if (lowpan_dev_info(entry->ldev)->real_dev == skb->dev) { + skb_cp = skb_copy(skb, GFP_ATOMIC); + if (!skb_cp) { + stat = -ENOMEM; + break; + } + + skb_cp->dev = entry->ldev; + stat = netif_rx(skb_cp); + } + rcu_read_unlock(); + + return stat; +} + static int lowpan_skb_deliver(struct sk_buff *skb, struct ipv6hdr *hdr) { struct sk_buff *new; - struct lowpan_dev_record *entry; int stat = NET_RX_SUCCESS; new = skb_copy_expand(skb, sizeof(struct ipv6hdr), skb_tailroom(skb), @@ -614,19 +636,7 @@ static int lowpan_skb_deliver(struct sk_buff *skb, struct ipv6hdr *hdr) new->protocol = htons(ETH_P_IPV6); new->pkt_type = PACKET_HOST; - rcu_read_lock(); - list_for_each_entry_rcu(entry, &lowpan_devices, list) - if (lowpan_dev_info(entry->ldev)->real_dev == new->dev) { - skb = skb_copy(new, GFP_ATOMIC); - if (!skb) { - stat = -ENOMEM; - break; - } - - skb->dev = entry->ldev; - stat = netif_rx(skb); - } - rcu_read_unlock(); + stat = lowpan_give_skb_to_devices(new); kfree_skb(new); |