On Fri, 11 Jul 2025 11:39:58 +0800
Li Tian <[email protected]> wrote:
> Add an additional flag IFF_NO_ADDRCONF to prevent ipv6 addrconf.
>
> Commit 8a321cf7becc6c065ae595b837b826a2a81036b9
> ("net: add IFF_NO_ADDRCONF and use it in bonding to prevent ipv6 addrconf")
>
> This new flag change was not made to hv_netvsc resulting in the VF being
> assinged an IPv6.
>
> Suggested-by: Cathy Avery <[email protected]>
>
> Signed-off-by: Li Tian <[email protected]>
> ---
> drivers/net/hyperv/netvsc_drv.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
> index c41a025c66f0..8be9bce66a4e 100644
> --- a/drivers/net/hyperv/netvsc_drv.c
> +++ b/drivers/net/hyperv/netvsc_drv.c
> @@ -2317,8 +2317,11 @@ static int netvsc_prepare_bonding(struct net_device
> *vf_netdev)
> if (!ndev)
> return NOTIFY_DONE;
>
> - /* set slave flag before open to prevent IPv6 addrconf */
> + /* Set slave flag and no addrconf flag before open
> + * to prevent IPv6 addrconf.
> + */
> vf_netdev->flags |= IFF_SLAVE;
> + vf_netdev->priv_flags |= IFF_NO_ADDRCONF;
> return NOTIFY_DONE;
> }
>
Thanks this worked originally but got broken, please add:
Fixes: 8a321cf7becc ("net: add IFF_NO_ADDRCONF and use it in bonding to prevent
ipv6 addrconf")
Cc: [email protected]
Looks like team and failover have the same problem.
