Set an additional flag IFF_NO_ADDRCONF to prevent ipv6 addrconf. Commit under Fixes added a new flag change that was not made to hv_netvsc resulting in the VF being assinged an IPv6. Fixes: 8a321cf7becc ("net: add IFF_NO_ADDRCONF and use it in bonding to prevent ipv6 addrconf") Suggested-by: Cathy Avery Signed-off-by: Li Tian --- v3: - only fixes commit message. v2: https://lore.kernel.org/netdev/20250710024603.10162-1-litian@redhat.com/ - instead of replacing flag, add it. v1: https://lore.kernel.org/netdev/20250710024603.10162-1-litian@redhat.com/ --- 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; } -- 2.50.0