From: Florian Fainelli <f.fainelli@gmail.com>
To: Vladimir Oltean <vladimir.oltean@nxp.com>
Cc: "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
Andrew Lunn <andrew@lunn.ch>,
Vivien Didelot <vivien.didelot@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
open list <linux-kernel@vger.kernel.org>,
"olteanv@gmail.com" <olteanv@gmail.com>,
"nikolay@nvidia.com" <nikolay@nvidia.com>
Subject: Re: [PATCH net-next v3 1/2] net: dsa: untag the bridge pvid from rx skbs
Date: Wed, 23 Sep 2020 15:59:46 -0700 [thread overview]
Message-ID: <a573b81e-d4cc-98ad-31a8-beb37eade1f3@gmail.com> (raw)
In-Reply-To: <20200923225802.vjwwjmw7mh2ru3so@skbuf>
On 9/23/20 3:58 PM, Vladimir Oltean wrote:
> On Wed, Sep 23, 2020 at 03:54:59PM -0700, Florian Fainelli wrote:
>> Not having much luck with using __vlan_find_dev_deep_rcu() for a reason
>> I don't understand we trip over the proto value being neither of the two
>> support Ethertype and hit the BUG().
>>
>> + upper_dev = __vlan_find_dev_deep_rcu(br, htons(proto), vid);
>> + if (upper_dev)
>> + return skb;
>>
>> Any ideas?
>
> Damn...
> Yes, of course, the skb->protocol is still ETH_P_XDSA which is where
> eth_type_trans() on the master left it.
proto was obtained from br_vlan_get_proto() a few lines above, and
br_vlan_get_proto() just returns br->vlan_proto which defaults to
htons(ETH_P_8021Q) from br_vlan_init().
This is not skb->protocol that we are looking at AFAICT.
--
Florian
next prev parent reply other threads:[~2020-09-23 22:59 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-23 21:40 [PATCH net-next v3 0/2] net: dsa: b53: Configure VLANs while not filtering Florian Fainelli
2020-09-23 21:40 ` [PATCH net-next v3 1/2] net: dsa: untag the bridge pvid from rx skbs Florian Fainelli
2020-09-23 21:48 ` Vladimir Oltean
2020-09-23 21:51 ` Florian Fainelli
2020-09-23 22:01 ` Vladimir Oltean
2020-09-23 22:06 ` Florian Fainelli
2020-09-23 22:08 ` Florian Fainelli
2020-09-23 22:25 ` Vladimir Oltean
2020-09-23 22:49 ` Florian Fainelli
2020-09-23 22:54 ` Florian Fainelli
2020-09-23 22:58 ` Vladimir Oltean
2020-09-23 22:59 ` Florian Fainelli [this message]
2020-09-23 23:08 ` Vladimir Oltean
2020-09-24 4:27 ` Florian Fainelli
2020-09-23 21:40 ` [PATCH net-next v3 2/2] net: dsa: b53: Configure VLANs while not filtering Florian Fainelli
2020-09-24 1:14 ` [PATCH net-next v3 0/2] " David Miller
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