From e09b41010ba33a20a87472ee821fa407a5b8da36 Mon Sep 17 00:00:00 2001 From: José Pekkarinen Date: Mon, 11 Apr 2016 10:41:07 +0300 Subject: These changes are the raw update to linux-4.4.6-rt14. Kernel sources are taken from kernel.org, and rt patch from the rt wiki download page. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen --- kernel/net/bridge/br_forward.c | 62 ++++++++++++++++++++++++++++-------------- 1 file changed, 42 insertions(+), 20 deletions(-) (limited to 'kernel/net/bridge/br_forward.c') diff --git a/kernel/net/bridge/br_forward.c b/kernel/net/bridge/br_forward.c index 0ff6e1bbc..fcdb86dd5 100644 --- a/kernel/net/bridge/br_forward.c +++ b/kernel/net/bridge/br_forward.c @@ -30,30 +30,47 @@ static int deliver_clone(const struct net_bridge_port *prev, static inline int should_deliver(const struct net_bridge_port *p, const struct sk_buff *skb) { + struct net_bridge_vlan_group *vg; + + vg = nbp_vlan_group_rcu(p); return ((p->flags & BR_HAIRPIN_MODE) || skb->dev != p->dev) && - br_allowed_egress(p->br, nbp_get_vlan_info(p), skb) && - p->state == BR_STATE_FORWARDING; + br_allowed_egress(vg, skb) && p->state == BR_STATE_FORWARDING; } -int br_dev_queue_push_xmit(struct sock *sk, struct sk_buff *skb) +int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb) { - if (!is_skb_forwardable(skb->dev, skb)) { - kfree_skb(skb); - } else { - skb_push(skb, ETH_HLEN); - br_drop_fake_rtable(skb); - skb_sender_cpu_clear(skb); - dev_queue_xmit(skb); + if (!is_skb_forwardable(skb->dev, skb)) + goto drop; + + skb_push(skb, ETH_HLEN); + br_drop_fake_rtable(skb); + skb_sender_cpu_clear(skb); + + if (skb->ip_summed == CHECKSUM_PARTIAL && + (skb->protocol == htons(ETH_P_8021Q) || + skb->protocol == htons(ETH_P_8021AD))) { + int depth; + + if (!__vlan_get_protocol(skb, skb->protocol, &depth)) + goto drop; + + skb_set_network_header(skb, depth); } + dev_queue_xmit(skb); + + return 0; + +drop: + kfree_skb(skb); return 0; } EXPORT_SYMBOL_GPL(br_dev_queue_push_xmit); -int br_forward_finish(struct sock *sk, struct sk_buff *skb) +int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb) { - return NF_HOOK(NFPROTO_BRIDGE, NF_BR_POST_ROUTING, sk, skb, - NULL, skb->dev, + return NF_HOOK(NFPROTO_BRIDGE, NF_BR_POST_ROUTING, + net, sk, skb, NULL, skb->dev, br_dev_queue_push_xmit); } @@ -61,7 +78,10 @@ EXPORT_SYMBOL_GPL(br_forward_finish); static void __br_deliver(const struct net_bridge_port *to, struct sk_buff *skb) { - skb = br_handle_vlan(to->br, nbp_get_vlan_info(to), skb); + struct net_bridge_vlan_group *vg; + + vg = nbp_vlan_group_rcu(to); + skb = br_handle_vlan(to->br, vg, skb); if (!skb) return; @@ -77,13 +97,14 @@ static void __br_deliver(const struct net_bridge_port *to, struct sk_buff *skb) return; } - NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, NULL, skb, - NULL, skb->dev, + NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, + dev_net(skb->dev), NULL, skb,NULL, skb->dev, br_forward_finish); } static void __br_forward(const struct net_bridge_port *to, struct sk_buff *skb) { + struct net_bridge_vlan_group *vg; struct net_device *indev; if (skb_warn_if_lro(skb)) { @@ -91,7 +112,8 @@ static void __br_forward(const struct net_bridge_port *to, struct sk_buff *skb) return; } - skb = br_handle_vlan(to->br, nbp_get_vlan_info(to), skb); + vg = nbp_vlan_group_rcu(to); + skb = br_handle_vlan(to->br, vg, skb); if (!skb) return; @@ -99,8 +121,8 @@ static void __br_forward(const struct net_bridge_port *to, struct sk_buff *skb) skb->dev = to->dev; skb_forward_csum(skb); - NF_HOOK(NFPROTO_BRIDGE, NF_BR_FORWARD, NULL, skb, - indev, skb->dev, + NF_HOOK(NFPROTO_BRIDGE, NF_BR_FORWARD, + dev_net(indev), NULL, skb, indev, skb->dev, br_forward_finish); } @@ -119,7 +141,7 @@ EXPORT_SYMBOL_GPL(br_deliver); /* called with rcu_read_lock */ void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, struct sk_buff *skb0) { - if (should_deliver(to, skb)) { + if (to && should_deliver(to, skb)) { if (skb0) deliver_clone(to, skb, __br_forward); else -- cgit 1.2.3-korg