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Subject[PATCH net-next 2/2] ip6mr: restrict mroute6 "queue full" warning to related error values
Date
When sending a cache report on mroute6_sk, mroute6 will emit a
"pending queue full" warning for every error value returned by
sock_queue_rcv_skb().
This warning can be misleading, for example on the EPERM error value
that sk_filter() can return.

Restricting this warning to only ENOMEM or ENOBUFS seems more
appropriate.

Signed-off-by: Julien Gomes <julien@arista.com>
---
net/ipv6/ip6mr.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 7454850f2098..62fe5fd64f22 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -1215,7 +1215,8 @@ static int ip6mr_cache_report(struct mr6_table *mrt, struct sk_buff *pkt,
*/
ret = sock_queue_rcv_skb(mrt->mroute6_sk, skb);
if (ret < 0) {
- net_warn_ratelimited("mroute6: pending queue full, dropping entries\n");
+ if (ret == -ENOMEM || ret == -ENOBUFS)
+ net_warn_ratelimited("mroute6: pending queue full, dropping entries\n");
kfree_skb(skb);
}

--
2.13.1
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