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Date: Wed, 16 Jan 2013 00:43:56 -0500 From: Alan Ott <alan@...nal11.us> To: Alexander Smirnov <alex.bluesman.smirnov@...il.com>, Dmitry Eremin-Solenikov <dbaryshkov@...il.com>, "David S. Miller" <davem@...emloft.net> Cc: linux-zigbee-devel@...ts.sourceforge.net, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, Tony Cheneau <tony.cheneau@...esiak.org>, Eric Dumazet <eric.dumazet@...il.com>, Alan Ott <alan@...nal11.us> Subject: [PATCH 1/2] 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@...nal11.us> --- net/ieee802154/6lowpan.c | 38 ++++++++++++++++++++++++-------------- 1 file changed, 24 insertions(+), 14 deletions(-) diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c index f651da6..1714cfa 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); -- 1.7.11.2 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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