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| author |   Jiri Pirko <jpirko@redhat.com> | 2011-03-12 03:14:39 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2011-03-16 12:53:54 -0700 |
| commit | 8a4eb5734e8d1dc60a8c28576bbbdfdcc643626d (patch) | |
| tree | ed4cd2f9a2a04a30994a8f8964a81834c895c0c9 /drivers/net/bonding | |
| parent | bonding: get rid of IFF_SLAVE_INACTIVE netdev->priv_flag (diff) | |
| download | linux-dev-8a4eb5734e8d1dc60a8c28576bbbdfdcc643626d.tar.xz linux-dev-8a4eb5734e8d1dc60a8c28576bbbdfdcc643626d.zip | |
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.c | 22 |
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> */ |