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