dev_forward_skb will clear skb->sk, so we need save classid
before that, otherwise the skb can not be under control by
net_cls.
Signed-off-by: Libo Chen <clbchenlibo.chen@xxxxxxxxxx>
---
drivers/net/veth.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index 2ec2041..ce43a2d 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -18,6 +18,7 @@
#include <net/xfrm.h>
#include <linux/veth.h>
#include <linux/module.h>
+#include <net/cls_cgroup.h>
#define DRV_NAME "veth"
#define DRV_VERSION "1.0"
@@ -123,6 +124,12 @@ static netdev_tx_t veth_xmit(struct sk_buff *skb, struct net_device *dev)
rcv->features & NETIF_F_RXCSUM)
skb->ip_summed = CHECKSUM_UNNECESSARY;
+ /**
+ * dev_forward_sbk will clear skb->sk, so save
+ * skb->sk->sk_classid for Qos
+ */
+ bk_cls_classid(skb);
+
if (likely(dev_forward_skb(rcv, skb) == NET_RX_SUCCESS)) {
struct pcpu_vstats *stats = this_cpu_ptr(dev->vstats);
--
1.8.2.2
--
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