netdev - Re: [PATCH] test_bpf: fix the dummy skb after dissector changes

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Date:   Thu, 15 Sep 2016 19:17:25 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     jakub.kicinski@...ronome.com
Cc:     ast@...nel.org, daniel@...earbox.net, netdev@...r.kernel.org,
        hadarh@...lanox.com
Subject: Re: [PATCH] test_bpf: fix the dummy skb after dissector changes

From: Jakub Kicinski <jakub.kicinski@...ronome.com>
Date: Mon, 12 Sep 2016 13:04:57 +0100

> 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>

Applied.