netdev - Re: [PATCH net-next] icmp6: Add new icmpv6 type for RPL control message

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Date:	Tue, 07 Oct 2014 15:55:45 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	hannes@...essinduktion.org
Cc:	simon.vincent@...lon.com, netdev@...r.kernel.org
Subject: Re: [PATCH net-next] icmp6: Add new icmpv6 type for RPL control
 message

From: Hannes Frederic Sowa <hannes@...essinduktion.org>
Date: Tue, 07 Oct 2014 01:53:46 +0200

> Might be possible, but I would favor to get rid of the printk or move
> the test for informational icmp notifications up.
> Some of the type < 128 icmp (non-informal) packets we also report to
> user space, so we cannot just add them to a blacklist.

So basically:

diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index 141e1f3..97ae700 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -777,12 +777,12 @@ static int icmpv6_rcv(struct sk_buff *skb)
 		break;
 
 	default:
-		LIMIT_NETDEBUG(KERN_DEBUG "icmpv6: msg of unknown type\n");
-
 		/* informational */
 		if (type & ICMPV6_INFOMSG_MASK)
 			break;
 
+		LIMIT_NETDEBUG(KERN_DEBUG "icmpv6: msg of unknown type\n");
+
 		/*
 		 * error of unknown type.
 		 * must pass to upper level
--
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