diff options
| author | Menglong Dong <menglong8.dong@gmail.com> | 2024-10-09 10:28:27 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2024-10-13 11:33:09 +0100 |
| commit | e7c700aaa67a59c28da07072fbaae207b5f27519 (patch) | |
| tree | c83b3f4f280abf9b79350bd4ed8de4586dee3455 | |
| parent | b71a576e452b800efeac49ecca116d954601d911 (diff) | |
net: vxlan: add drop reasons support to vxlan_xmit_one()
Replace kfree_skb/dev_kfree_skb with kfree_skb_reason in vxlan_xmit_one.
No drop reasons are introduced in this commit.
The only concern of mine is replacing dev_kfree_skb with
kfree_skb_reason. The dev_kfree_skb is equal to consume_skb, and I'm not
sure if we can change it to kfree_skb here. In my option, the skb is
"dropped" here, isn't it?
Signed-off-by: Menglong Dong <dongml2@chinatelecom.cn>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/vxlan/vxlan_core.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/net/vxlan/vxlan_core.c b/drivers/net/vxlan/vxlan_core.c index 649b4ea5c362..e82f2e30bd39 100644 --- a/drivers/net/vxlan/vxlan_core.c +++ b/drivers/net/vxlan/vxlan_core.c @@ -2374,13 +2374,16 @@ void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev, bool use_cache; bool udp_sum = false; bool xnet = !net_eq(vxlan->net, dev_net(vxlan->dev)); + enum skb_drop_reason reason; bool no_eth_encap; __be32 vni = 0; no_eth_encap = flags & VXLAN_F_GPE && skb->protocol != htons(ETH_P_TEB); - if (skb_vlan_inet_prepare(skb, no_eth_encap)) + reason = skb_vlan_inet_prepare(skb, no_eth_encap); + if (reason) goto drop; + reason = SKB_DROP_REASON_NOT_SPECIFIED; old_iph = ip_hdr(skb); info = skb_tunnel_info(skb); @@ -2484,6 +2487,7 @@ void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev, tos, use_cache ? dst_cache : NULL); if (IS_ERR(rt)) { err = PTR_ERR(rt); + reason = SKB_DROP_REASON_IP_OUTNOROUTES; goto tx_error; } @@ -2535,8 +2539,10 @@ void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev, ttl = ttl ? : ip4_dst_hoplimit(&rt->dst); err = vxlan_build_skb(skb, ndst, sizeof(struct iphdr), vni, md, flags, udp_sum); - if (err < 0) + if (err < 0) { + reason = SKB_DROP_REASON_NOMEM; goto tx_error; + } udp_tunnel_xmit_skb(rt, sock4->sock->sk, skb, saddr, pkey->u.ipv4.dst, tos, ttl, df, @@ -2556,6 +2562,7 @@ void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev, if (IS_ERR(ndst)) { err = PTR_ERR(ndst); ndst = NULL; + reason = SKB_DROP_REASON_IP_OUTNOROUTES; goto tx_error; } @@ -2596,8 +2603,10 @@ void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev, skb_scrub_packet(skb, xnet); err = vxlan_build_skb(skb, ndst, sizeof(struct ipv6hdr), vni, md, flags, udp_sum); - if (err < 0) + if (err < 0) { + reason = SKB_DROP_REASON_NOMEM; goto tx_error; + } udp_tunnel6_xmit_skb(ndst, sock6->sock->sk, skb, dev, &saddr, &pkey->u.ipv6.dst, tos, ttl, @@ -2612,7 +2621,7 @@ out_unlock: drop: dev_core_stats_tx_dropped_inc(dev); vxlan_vnifilter_count(vxlan, vni, NULL, VXLAN_VNI_STATS_TX_DROPS, 0); - dev_kfree_skb(skb); + kfree_skb_reason(skb, reason); return; tx_error: @@ -2624,7 +2633,7 @@ tx_error: dst_release(ndst); DEV_STATS_INC(dev, tx_errors); vxlan_vnifilter_count(vxlan, vni, NULL, VXLAN_VNI_STATS_TX_ERRORS, 0); - kfree_skb(skb); + kfree_skb_reason(skb, reason); } static void vxlan_xmit_nh(struct sk_buff *skb, struct net_device *dev, |