On 10/13/21 7:21 AM, Daniel Borkmann wrote: > The combination of NUD_PERMANENT + NTF_MANAGED is not supported and does > not make sense either given the former indicates a static/fixed neighbor > entry whereas the latter a dynamically resolved one. While it is possible > to transition from one over to the other, we should however reject such > creation attempts. > > Fixes: 7482e3841d52 ("net, neigh: Add NTF_MANAGED flag for managed neighbor entries") > Suggested-by: David Ahern <dsahern@xxxxxxxxxx> > Signed-off-by: Daniel Borkmann <daniel@xxxxxxxxxxxxx> > --- > net/core/neighbour.c | 11 ++++++++--- > 1 file changed, 8 insertions(+), 3 deletions(-) > Reviewed-by: David Ahern <dsahern@xxxxxxxxxx>