On Fri, Oct 18, 2024 at 12:46:18AM +0000, Hangbin Liu wrote: > On Thu, Oct 17, 2024 at 04:47:19PM +0200, Toke Høiland-Jørgensen wrote: > > > diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c > > > index f0f76b6ac8be..6887a867fe8b 100644 > > > --- a/drivers/net/bonding/bond_main.c > > > +++ b/drivers/net/bonding/bond_main.c > > > @@ -5699,7 +5699,7 @@ static int bond_xdp_set(struct net_device *dev, struct bpf_prog *prog, > > > if (dev_xdp_prog_count(slave_dev) > 0) { > > > SLAVE_NL_ERR(dev, slave_dev, extack, > > > "Slave has XDP program loaded, please unload before enslaving"); > > > - err = -EOPNOTSUPP; > > > + err = -EEXIST; > > > > Hmm, this has been UAPI since kernel 5.15, so can we really change it > > now? What's the purpose of changing it, anyway? > > I just think it should return EXIST when the error is "Slave has XDP program > loaded". No special reason. If all others think we should not change it, I > can drop this patch. Hi Toke, Could you add some colour to what extent user's might rely on this error code? Basically I think that if they do then we shouldn't change this.