Re: [PATCH net-next v2] net: replace ND_PRINTK with dynamic debug

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On Fri, Jul 04, 2025 at 07:10:37PM +0300, Ido Schimmel wrote:
> On Tue, Jul 01, 2025 at 04:11:14PM +0800, Wang Liang wrote:
> > ND_PRINTK with val > 1 only works when the ND_DEBUG was set in compilation
> > phase. Replace it with dynamic debug. Convert ND_PRINTK with val <= 1 to
> > net_{err,warn}_ratelimited, and convert the rest to net_dbg_ratelimited.
> 
> One small comment below
> 
> [...]
> 
> > @@ -751,9 +747,8 @@ static void ndisc_solicit(struct neighbour *neigh, struct sk_buff *skb)
> >  	probes -= NEIGH_VAR(neigh->parms, UCAST_PROBES);
> >  	if (probes < 0) {
> >  		if (!(READ_ONCE(neigh->nud_state) & NUD_VALID)) {
> > -			ND_PRINTK(1, dbg,
> > -				  "%s: trying to ucast probe in NUD_INVALID: %pI6\n",
> > -				  __func__, target);
> > +			net_warn_ratelimited("%s: trying to ucast probe in NUD_INVALID: %pI6\n",
> > +					     __func__, target);
> 
> Without getting into a philosophical discussion about the appropriate
> log level for this message, the purpose of this patch is to move
> ND_PRINTK(val > 1, ...) to net_dbg_ratelimited(), but for some reason
> this hunk promotes an existing net_dbg_ratelimited() to
> net_warn_ratelimited(). Why not keep it as net_dbg_ratelimited()?

Indeed. Sorry for not noticing that in my review.

> 
> >  		}
> >  		ndisc_send_ns(dev, target, target, saddr, 0);
> >  	} else if ((probes -= NEIGH_VAR(neigh->parms, APP_PROBES)) < 0) {
> 




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