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Date: Mon, 12 Sep 2016 13:04:57 +0100 From: Jakub Kicinski <jakub.kicinski@...ronome.com> To: Alexei Starovoitov <ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net> Cc: <netdev@...r.kernel.org>, Hadar Hen Zion <hadarh@...lanox.com>, Jakub Kicinski <jakub.kicinski@...ronome.com> Subject: [PATCH] test_bpf: fix the dummy skb after dissector changes Commit d5709f7ab776 ("flow_dissector: For stripped vlan, get vlan info from skb->vlan_tci") made flow dissector look at vlan_proto when vlan is present. Since test_bpf sets skb->vlan_tci to ~0 (including VLAN_TAG_PRESENT) we have to populate skb->vlan_proto. Fixes false negative on test #24: test_bpf: #24 LD_PAYLOAD_OFF jited:0 175 ret 0 != 42 FAIL (1 times) Signed-off-by: Jakub Kicinski <jakub.kicinski@...ronome.com> Reviewed-by: Dinan Gunawardena <dinan.gunawardena@...ronome.com> --- lib/test_bpf.c | 1 + 1 file changed, 1 insertion(+) diff --git a/lib/test_bpf.c b/lib/test_bpf.c index 93f45011a59d..94346b4d8984 100644 --- a/lib/test_bpf.c +++ b/lib/test_bpf.c @@ -5485,6 +5485,7 @@ static struct sk_buff *populate_skb(char *buf, int size) skb->hash = SKB_HASH; skb->queue_mapping = SKB_QUEUE_MAP; skb->vlan_tci = SKB_VLAN_TCI; + skb->vlan_proto = htons(ETH_P_IP); skb->dev = &dev; skb->dev->ifindex = SKB_DEV_IFINDEX; skb->dev->type = SKB_DEV_TYPE; -- 1.9.1
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