From 8f1ead2d1a626ed0c85b3d2c2046a49081d5933f Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Thu, 26 Mar 2009 00:59:10 -0700 Subject: [PATCH] GRO: Disable GRO on legacy netif_rx path When I fixed the GRO crash in the legacy receive path I used napi_complete to replace __napi_complete. Unfortunately they're not the same when NETPOLL is enabled, which may result in us not calling __napi_complete at all. What's more, we really do need to keep the __napi_complete call within the IRQ-off section since in theory an IRQ can occur in between and fill up the backlog to the maximum, causing us to lock up. Since we can't seem to find a fix that works properly right now, this patch reverts all the GRO support from the netif_rx path. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- net/core/dev.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/net/core/dev.c b/net/core/dev.c index 052dd478d3e..63ec4bf89b2 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2627,18 +2627,15 @@ static int process_backlog(struct napi_struct *napi, int quota) local_irq_disable(); skb = __skb_dequeue(&queue->input_pkt_queue); if (!skb) { + __napi_complete(napi); local_irq_enable(); - napi_complete(napi); - goto out; + break; } local_irq_enable(); - napi_gro_receive(napi, skb); + netif_receive_skb(skb); } while (++work < quota && jiffies == start_time); - napi_gro_flush(napi); - -out: return work; } -- 2.41.1