net: Add a skb_gro_flush_final helper.
Add a skb_gro_flush_final helper to prepare for consuming skbs in call_gro_receive. We will extend this helper to not touch the skb if the skb is consumed by a gro callback with a followup patch. We need this to handle the upcomming IPsec ESP callbacks as they reinject the skb to the napi_gro_receive asynchronous. The handler is used in all gro_receive functions that can call the ESP gro handlers. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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@ -2661,6 +2661,11 @@ static inline void skb_gro_remcsum_cleanup(struct sk_buff *skb,
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remcsum_unadjust((__sum16 *)ptr, grc->delta);
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remcsum_unadjust((__sum16 *)ptr, grc->delta);
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}
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}
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static inline void skb_gro_flush_final(struct sk_buff *skb, struct sk_buff **pp, int flush)
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{
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NAPI_GRO_CB(skb)->flush |= flush;
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}
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static inline int dev_hard_header(struct sk_buff *skb, struct net_device *dev,
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static inline int dev_hard_header(struct sk_buff *skb, struct net_device *dev,
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unsigned short type,
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unsigned short type,
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const void *daddr, const void *saddr,
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const void *daddr, const void *saddr,
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@ -474,7 +474,7 @@ struct sk_buff **eth_gro_receive(struct sk_buff **head,
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out_unlock:
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out_unlock:
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rcu_read_unlock();
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rcu_read_unlock();
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out:
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out:
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NAPI_GRO_CB(skb)->flush |= flush;
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skb_gro_flush_final(skb, pp, flush);
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return pp;
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return pp;
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}
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}
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@ -1423,7 +1423,7 @@ out_unlock:
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rcu_read_unlock();
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rcu_read_unlock();
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out:
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out:
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NAPI_GRO_CB(skb)->flush |= flush;
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skb_gro_flush_final(skb, pp, flush);
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return pp;
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return pp;
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}
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}
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@ -253,7 +253,7 @@ out_unlock:
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rcu_read_unlock();
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rcu_read_unlock();
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out:
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out:
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NAPI_GRO_CB(skb)->flush |= flush;
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skb_gro_flush_final(skb, pp, flush);
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return pp;
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return pp;
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}
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}
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