[PATCH 4.9 22/90] ipvlan: egress mcast packets are not exceptional

From: Greg Kroah-Hartman
Date: Thu Mar 19 2020 - 09:11:29 EST


From: Paolo Abeni <pabeni@xxxxxxxxxx>

commit cccc200fcaf04cff4342036a72e51d6adf6c98c1 upstream.

Currently, if IPv6 is enabled on top of an ipvlan device in l3
mode, the following warning message:

Dropped {multi|broad}cast of type= [86dd]

is emitted every time that a RS is generated and dmseg is soon
filled with irrelevant messages. Replace pr_warn with pr_debug,
to preserve debuggability, without scaring the sysadmin.

Signed-off-by: Paolo Abeni <pabeni@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/net/ipvlan/ipvlan_core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/net/ipvlan/ipvlan_core.c
+++ b/drivers/net/ipvlan/ipvlan_core.c
@@ -446,8 +446,8 @@ static int ipvlan_process_outbound(struc

/* In this mode we dont care about multicast and broadcast traffic */
if (is_multicast_ether_addr(ethh->h_dest)) {
- pr_warn_ratelimited("Dropped {multi|broad}cast of type= [%x]\n",
- ntohs(skb->protocol));
+ pr_debug_ratelimited("Dropped {multi|broad}cast of type=[%x]\n",
+ ntohs(skb->protocol));
kfree_skb(skb);
goto out;
}