Re: [PATCH v3 net] udp: gso: do not drop small packets when PMTU reduces

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to netdev/net.git (main)
by David S. Miller <davem@xxxxxxxxxxxxx>:

On Fri, 31 Jan 2025 00:31:39 -0800 you wrote:
> Commit 4094871db1d6 ("udp: only do GSO if # of segs > 1") avoided GSO
> for small packets. But the kernel currently dismisses GSO requests only
> after checking MTU/PMTU on gso_size. This means any packets, regardless
> of their payload sizes, could be dropped when PMTU becomes smaller than
> requested gso_size. We encountered this issue in production and it
> caused a reliability problem that new QUIC connection cannot be
> established before PMTU cache expired, while non GSO sockets still
> worked fine at the same time.
> 
> [...]

Here is the summary with links:
  - [v3,net] udp: gso: do not drop small packets when PMTU reduces
    https://git.kernel.org/netdev/net/c/235174b2bed8

You are awesome, thank you!
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