Message ID | 1459540695-24404-1-git-send-email-aconole@redhat.com |
---|---|
State | Superseded, archived |
Delegated to: | David Miller |
Headers | show |
On Fri, 2016-04-01 at 15:58 -0400, Aaron Conole wrote: > From: Aaron Conole <aconole@bytheb.org> > > When signaling that a GRO frame is ready to be processed, the network stack > correctly checks length and aborts processing when a frame is less than 14 > bytes. However, such a condition is really indicative of a broken driver, > and should be loudly signaled, rather than silently dropped as the case is > today. > > Convert the condition to use net_warn_ratelimited() to ensure the stack > loudly complains about such broken drivers. > > Signed-off-by: Aaron Conole <aconole@bytheb.org> > --- Shouldn't we give a hint of device name ? (available in napi->dev->name )
diff --git a/net/core/dev.c b/net/core/dev.c index b9bcbe7..1be269e 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -4663,6 +4663,8 @@ static struct sk_buff *napi_frags_skb(struct napi_struct *napi) if (unlikely(skb_gro_header_hard(skb, hlen))) { eth = skb_gro_header_slow(skb, hlen, 0); if (unlikely(!eth)) { + net_warn_ratelimited("%s: dropping impossible skb\n", + __func__); napi_reuse_skb(napi, skb); return NULL; }