linux-kernel - Re: [PATCH net v10] af_packet: Handle outgoing VLAN packets without hardware offloading

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Message-Id: 
 <172101843040.2749.1887961636233742988.git-patchwork-notify@kernel.org>
Date: Mon, 15 Jul 2024 04:40:30 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Chengen Du <chengen.du@...onical.com>
Cc: willemdebruijn.kernel@...il.com, davem@...emloft.net, edumazet@...gle.com,
 kuba@...nel.org, pabeni@...hat.com, kaber@...sh.net, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH net v10] af_packet: Handle outgoing VLAN packets without
 hardware offloading

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@...nel.org>:

On Sat, 13 Jul 2024 19:47:35 +0800 you wrote:
> The issue initially stems from libpcap. The ethertype will be overwritten
> as the VLAN TPID if the network interface lacks hardware VLAN offloading.
> In the outbound packet path, if hardware VLAN offloading is unavailable,
> the VLAN tag is inserted into the payload but then cleared from the sk_buff
> struct. Consequently, this can lead to a false negative when checking for
> the presence of a VLAN tag, causing the packet sniffing outcome to lack
> VLAN tag information (i.e., TCI-TPID). As a result, the packet capturing
> tool may be unable to parse packets as expected.
> 
> [...]

Here is the summary with links:
  - [net,v10] af_packet: Handle outgoing VLAN packets without hardware offloading
    https://git.kernel.org/netdev/net/c/79eecf631c14

You are awesome, thank you!
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