Hello:
This patch was applied to netdev/net.git (main) by Jakub Kicinski kuba@kernel.org:
On Fri, 31 Oct 2025 14:05:51 +0800 you wrote:
From: "Michael S. Tsirkin" mst@redhat.com
Changing alignment of header would mean it's no longer safe to cast a 2 byte aligned pointer between formats. Use two 16 bit fields to make it 2 byte aligned as previously.
This fixes the performance regression since commit ("virtio_net: enable gso over UDP tunnel support.") as it uses virtio_net_hdr_v1_hash_tunnel which embeds virtio_net_hdr_v1_hash. Pktgen in guest + XDP_DROP on TAP + vhost_net shows the TX PPS is recovered from 2.4Mpps to 4.45Mpps.
[...]
Here is the summary with links: - [net,V2] virtio_net: fix alignment for virtio_net_hdr_v1_hash https://git.kernel.org/netdev/net/c/c3838262b824
You are awesome, thank you!