Willem de Bruijn wrote:
> Richard Gobert wrote:
>> This patch converts references of skb->network_header to napi_gro_cb's
>> network_offset and inner_network_offset.
>>
>> Signed-off-by: Richard Gobert <richardbgob...@gmail.com>
>> ---
>>  include/net/gro.h        | 9 +++++++--
>>  net/ipv4/af_inet.c       | 4 ----
>>  net/ipv4/tcp_offload.c   | 3 ++-
>>  net/ipv6/ip6_offload.c   | 5 ++---
>>  net/ipv6/tcpv6_offload.c | 3 ++-
>>  5 files changed, 13 insertions(+), 11 deletions(-)
>>
>> diff --git a/include/net/gro.h b/include/net/gro.h
>> index c1d4ca0463a1..1faff23b66e8 100644
>> --- a/include/net/gro.h
>> +++ b/include/net/gro.h
>> @@ -181,12 +181,17 @@ static inline void *skb_gro_header(struct sk_buff 
>> *skb, unsigned int hlen,
>>      return ptr;
>>  }
>>  
>> +static inline int skb_gro_network_offset(const struct sk_buff *skb)
>> +{
>> +    return NAPI_GRO_CB(skb)->network_offsets[NAPI_GRO_CB(skb)->encap_mark];
>> +}
>> +
> 
> The fact that .._receive sets encap_mark, but .._complete must read
> encapsulation, due to the clear in udp_gro_complete, is non-obvious.
> 
> Can you add a comment to clarify this or rename this to
> skb_gro_receive_network_offset?
> 

I'll rename that to skb_gro_receive_network_offset for better clarity,
thanks.

>>  static inline void *skb_gro_network_header(const struct sk_buff *skb)
>>  {
>>      if (skb_gro_may_pull(skb, skb_gro_offset(skb)))
>> -            return skb_gro_header_fast(skb, skb_network_offset(skb));
>> +            return skb_gro_header_fast(skb, skb_gro_network_offset(skb));
>>  
>> -    return skb_network_header(skb);
>> +    return skb->data + skb_gro_network_offset(skb);
>>  }

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