[PATCH net 0/2] Lift UDP_SEGMENT restriction for egress via device w/o csum offload

[Jakub Sitnicki <jakub@cloudflare.com>]

This is a follow-up to an earlier question [1] if we can make UDP GSO work with
any egress device, even those with no checksum offload capability. That's the
default setup for TUN/TAP.

I leave it to the maintainers to decide if it qualifies as a fix. We plan to
backport it to our v6.6 either way, hence the submission to -net.

[1] https://lore.kernel.org/netdev/87jzqsld6q.fsf@cloudflare.com/

Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
---
Jakub Sitnicki (2):
      udp: Allow GSO transmit from devices with no checksum offload
      selftests/net: Add test coverage for UDP GSO software fallback

 net/ipv4/udp.c                        |  3 +--
 net/ipv4/udp_offload.c                |  8 +++++++
 net/ipv6/udp.c                        |  3 +--
 tools/testing/selftests/net/udpgso.c  | 15 +++++++++---
 tools/testing/selftests/net/udpgso.sh | 43 +++++++++++++++++++++++++++++++++++
 5 files changed, 65 insertions(+), 7 deletions(-)