在 2025/7/5 0:10, Ido Schimmel 写道:
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()?
Thanks!
But this ND_PRINTK is some special. The val is 1, but the level is 'dbg'.
To keep the consistency in printing behavior, I convert ND_PRINTK with
val <= 1 to net_{err,warn}_ratelimited. So I use net_warn_ratelimited() to
place ND_PRINTK here.
}
ndisc_send_ns(dev, target, target, saddr, 0);
} else if ((probes -= NEIGH_VAR(neigh->parms, APP_PROBES)) < 0) {
