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authorJiri Pirko <jpirko@redhat.com>2011-03-12 03:14:39 +0000
committerDavid S. Miller <davem@davemloft.net>2011-03-16 12:53:54 -0700
commit8a4eb5734e8d1dc60a8c28576bbbdfdcc643626d (patch)
treeed4cd2f9a2a04a30994a8f8964a81834c895c0c9 /drivers/net/bonding
parent2d7011ca79f1a8792e04d131b8ea21db179ab917 (diff)
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net: introduce rx_handler results and logic around that
This patch allows rx_handlers to better signalize what to do next to it's caller. That makes skb->deliver_no_wcard no longer needed. kernel-doc for rx_handler_result is taken from Nicolas' patch. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Reviewed-by: Nicolas de Pesloüan <nicolas.2p.debian@free.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/bonding')
-rw-r--r--drivers/net/bonding/bond_main.c22
1 files changed, 12 insertions, 10 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 04119b1e7cdb..27c413aa15da 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1480,20 +1480,23 @@ static bool bond_should_deliver_exact_match(struct sk_buff *skb,
return false;
}
-static struct sk_buff *bond_handle_frame(struct sk_buff *skb)
+static rx_handler_result_t bond_handle_frame(struct sk_buff **pskb)
{
+ struct sk_buff *skb = *pskb;
struct slave *slave;
struct net_device *bond_dev;
struct bonding *bond;
- skb = skb_share_check(skb, GFP_ATOMIC);
- if (unlikely(!skb))
- return NULL;
-
slave = bond_slave_get_rcu(skb->dev);
bond_dev = ACCESS_ONCE(slave->dev->master);
if (unlikely(!bond_dev))
- return skb;
+ return RX_HANDLER_PASS;
+
+ skb = skb_share_check(skb, GFP_ATOMIC);
+ if (unlikely(!skb))
+ return RX_HANDLER_CONSUMED;
+
+ *pskb = skb;
bond = netdev_priv(bond_dev);
@@ -1501,8 +1504,7 @@ static struct sk_buff *bond_handle_frame(struct sk_buff *skb)
slave->dev->last_rx = jiffies;
if (bond_should_deliver_exact_match(skb, slave, bond)) {
- skb->deliver_no_wcard = 1;
- return skb;
+ return RX_HANDLER_EXACT;
}
skb->dev = bond_dev;
@@ -1514,12 +1516,12 @@ static struct sk_buff *bond_handle_frame(struct sk_buff *skb)
if (unlikely(skb_cow_head(skb,
skb->data - skb_mac_header(skb)))) {
kfree_skb(skb);
- return NULL;
+ return RX_HANDLER_CONSUMED;
}
memcpy(eth_hdr(skb)->h_dest, bond_dev->dev_addr, ETH_ALEN);
}
- return skb;
+ return RX_HANDLER_ANOTHER;
}
/* enslave device <slave> to bond device <master> */