netdev - Re: [PATCH net] ipv4: give an IPv4 dev to blackhole

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Message-Id: 
 <172868703151.3018281.10440332628872972423.git-patchwork-notify@kernel.org>
Date: Fri, 11 Oct 2024 22:50:31 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Xin Long <lucien.xin@...il.com>
Cc: netdev@...r.kernel.org, davem@...emloft.net, kuba@...nel.org,
 edumazet@...gle.com, pabeni@...hat.com, maheshb@...gle.com
Subject: Re: [PATCH net] ipv4: give an IPv4 dev to blackhole_netdev

Hello:

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

On Wed,  9 Oct 2024 14:47:13 -0400 you wrote:
> After commit 8d7017fd621d ("blackhole_netdev: use blackhole_netdev to
> invalidate dst entries"), blackhole_netdev was introduced to invalidate
> dst cache entries on the TX path whenever the cache times out or is
> flushed.
> 
> When two UDP sockets (sk1 and sk2) send messages to the same destination
> simultaneously, they are using the same dst cache. If the dst cache is
> invalidated on one path (sk2) while the other (sk1) is still transmitting,
> sk1 may try to use the invalid dst entry.
> 
> [...]

Here is the summary with links:
  - [net] ipv4: give an IPv4 dev to blackhole_netdev
    https://git.kernel.org/netdev/net/c/22600596b675

You are awesome, thank you!
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