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gro_cells: gro_cells_receive now return error code

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so that the caller can update stats accordingly, if needed

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Paolo Abeni
2016-07-20 18:11:31 +02:00
committed by David S. Miller
parent 276b8c77c3
commit 5f652bb2eb
1 changed files with 5 additions and 6 deletions
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11
include/net/gro_cells.h
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@@ -14,27 +14,26 @@ struct gro_cells {
struct gro_cell __percpu *cells; struct gro_cell __percpu *cells;
}; };
static inline void gro_cells_receive(struct gro_cells *gcells, struct sk_buff *skb) static inline int gro_cells_receive(struct gro_cells *gcells, struct sk_buff *skb)
{ {
struct gro_cell *cell; struct gro_cell *cell;
struct net_device *dev = skb->dev; struct net_device *dev = skb->dev;
if (!gcells->cells || skb_cloned(skb) || !(dev->features & NETIF_F_GRO)) { if (!gcells->cells || skb_cloned(skb) || !(dev->features & NETIF_F_GRO))
netif_rx(skb); return netif_rx(skb);
return;
}
cell = this_cpu_ptr(gcells->cells); cell = this_cpu_ptr(gcells->cells);
if (skb_queue_len(&cell->napi_skbs) > netdev_max_backlog) { if (skb_queue_len(&cell->napi_skbs) > netdev_max_backlog) {
atomic_long_inc(&dev->rx_dropped); atomic_long_inc(&dev->rx_dropped);
kfree_skb(skb); kfree_skb(skb);
return; return NET_RX_DROP;
} }
__skb_queue_tail(&cell->napi_skbs, skb); __skb_queue_tail(&cell->napi_skbs, skb);
if (skb_queue_len(&cell->napi_skbs) == 1) if (skb_queue_len(&cell->napi_skbs) == 1)
napi_schedule(&cell->napi); napi_schedule(&cell->napi);
return NET_RX_SUCCESS;
} }
/* called under BH context */ /* called under BH context */