Hello:
This patch was applied to netdev/net.git (main) by David S. Miller davem@davemloft.net:
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.
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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!