netdev - Re: [PATCH net V1] veth: reduce XDP no_direct return section to fix race

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Message-Id: 
 <176369340676.1872917.10033820911607185315.git-patchwork-notify@kernel.org>
Date: Fri, 21 Nov 2025 02:50:06 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Jesper Dangaard Brouer <hawk@...nel.org>
Cc: netdev@...r.kernel.org, bigeasy@...utronix.de, bpf@...r.kernel.org,
 eric.dumazet@...il.com, davem@...emloft.net, kuba@...nel.org,
 pabeni@...hat.com, makita.toshiaki@....ntt.co.jp, toshiaki.makita1@...il.com,
 kernel-team@...udflare.com, mfleming@...udflare.com,
 maciej.fijalkowski@...el.com, dtatulea@...dia.com, edumazet@...gle.com,
 sdf@...ichev.me, andrew+netdev@...n.ch, john.fastabend@...il.com,
 ast@...nel.org, daniel@...earbox.net
Subject: Re: [PATCH net V1] veth: reduce XDP no_direct return section to fix
 race

Hello:

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

On Wed, 19 Nov 2025 17:28:36 +0100 you wrote:
> As explain in commit fa349e396e48 ("veth: Fix race with AF_XDP exposing
> old or uninitialized descriptors") for veth there is a chance after
> napi_complete_done() that another CPU can manage start another NAPI
> instance running veth_pool(). For NAPI this is correctly handled as the
> napi_schedule_prep() check will prevent multiple instances from getting
> scheduled, but for the remaining code in veth_pool() this can run
> concurrent with the newly started NAPI instance.
> 
> [...]

Here is the summary with links:
  - [net,V1] veth: reduce XDP no_direct return section to fix race
    https://git.kernel.org/netdev/net/c/a14602fcae17

You are awesome, thank you!
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