Re: [PATCH net 0/2] vxlan: keep reserved_bits on changelink

[Hangbin Liu]

On Fri, Oct 23, 2026 at 01:14:26PM +0200, Hannes Laimer wrote:
> Currently reserved_bits are reset on every changelink. This leads to
> packets using extensions that were enabled on creation being dropped
> after a changelink. The first commit describes the problem and
> solution in more detail and the second just adds a selftest for this.
> 
> Signed-off-by: Hannes Laimer <h.laimer@xxxxxxxxxxx>
> ---
> Hannes Laimer (2):
>       vxlan: keep reserved_bits across changelink
>       selftests: forwarding: vxlan_reserved: add gbp changelink test
> 
>  drivers/net/vxlan/vxlan_core.c                           |  2 +-
>  tools/testing/selftests/net/forwarding/vxlan_reserved.sh | 15 +++++++++++++++
>  2 files changed, 16 insertions(+), 1 deletion(-)
> ---
> base-commit: 734bef548a96e8774d6eef5dfa2026c6edc4e80b
> change-id: 20261023-b4-vxlan-changelink-gbp-de5e81eed8d1
> 
> Best regards,
> --  
> Hannes Laimer <h.laimer@xxxxxxxxxxx>
> 
> 

Reviewed-by: Hangbin Liu <liuhangbin@xxxxxxxxxx>