Subject: Re: [PATCH net-next] net: dsa: return -EOPNOTSUPP when driver does not implement .port_lag_join

From: [email-masked]
Date: Thu, 01 Jul 2021 18:40:04 +0000

Hello:

This patch was applied to netdev/net-next.git (refs/heads/master):

On Tue, 29 Jun 2021 23:32:15 +0300 you wrote:
> The DSA core has a layered structure, and even though we end up
> returning 0 (success) to user space when setting a bonding/team upper
> that can't be offloaded, some parts of the framework actually need to
> know that we couldn't offload that.
> 
> For example, if dsa_switch_lag_join returns 0 as it currently does,
> dsa_port_lag_join has no way to tell a successful offload from a
> software fallback, and it will call dsa_port_bridge_join afterwards.
> Then we'll think we're offloading the bridge master of the LAG, when in
> fact we're not even offloading the LAG. In turn, this will make us set
> skb->offload_fwd_mark = true, which is incorrect and the bridge doesn't
> like it.
> 
> [...]

Here is the summary with links:
  - [net-next] net: dsa: return -EOPNOTSUPP when driver does not implement .port_lag_join
    https://git.kernel.org/netdev/net-next/c/b71d09871566

You are awesome, thank you!
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