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

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Message-ID: <20160912161822.GA12817@ast-mbp.thefacebook.com>
Date:   Mon, 12 Sep 2016 09:18:23 -0700
From:   Alexei Starovoitov <alexei.starovoitov@...il.com>
To:     Jakub Kicinski <jakub.kicinski@...ronome.com>
Cc:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>, netdev@...r.kernel.org,
        Hadar Hen Zion <hadarh@...lanox.com>
Subject: Re: [PATCH] test_bpf: fix the dummy skb after dissector changes

On Mon, Sep 12, 2016 at 01:04:57PM +0100, Jakub Kicinski wrote:
> 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>

Thanks! This is for net-next. Pls mention that in the subj next time.
Acked-by: Alexei Starovoitov <ast@...nel.org>