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* [PATCH net-next] net: minor: tcp: use tcp_skb_mss helper in tcp_tso_segment
@ 2013-06-07  0:07 Daniel Borkmann
  2013-06-07  1:20 ` Eric Dumazet
  0 siblings, 1 reply; 3+ messages in thread
From: Daniel Borkmann @ 2013-06-07  0:07 UTC (permalink / raw)
  To: davem; +Cc: netdev

We have the minimal inline helper tcp_skb_mss to access
skb_shinfo(skb)->gso_size, so also use it here to get mss.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
---
 net/ipv4/tcp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index b5d4ad9..6a1cf95 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2905,7 +2905,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb,
 	oldlen = (u16)~skb->len;
 	__skb_pull(skb, thlen);
 
-	mss = skb_shinfo(skb)->gso_size;
+	mss = tcp_skb_mss(skb);
 	if (unlikely(skb->len <= mss))
 		goto out;
 
@@ -3071,7 +3071,7 @@ found:
 		flush |= *(u32 *)((u8 *)th + i) ^
 			 *(u32 *)((u8 *)th2 + i);
 
-	mss = skb_shinfo(p)->gso_size;
+	mss = tcp_skb_mss(p);
 
 	flush |= (len - 1) >= mss;
 	flush |= (ntohl(th2->seq) + skb_gro_len(p)) ^ ntohl(th->seq);
-- 
1.7.11.7

^ permalink raw reply related	[flat|nested] 3+ messages in thread

* Re: [PATCH net-next] net: minor: tcp: use tcp_skb_mss helper in tcp_tso_segment
  2013-06-07  0:07 [PATCH net-next] net: minor: tcp: use tcp_skb_mss helper in tcp_tso_segment Daniel Borkmann
@ 2013-06-07  1:20 ` Eric Dumazet
  2013-06-07  5:43   ` Daniel Borkmann
  0 siblings, 1 reply; 3+ messages in thread
From: Eric Dumazet @ 2013-06-07  1:20 UTC (permalink / raw)
  To: Daniel Borkmann; +Cc: davem, netdev

On Fri, 2013-06-07 at 02:07 +0200, Daniel Borkmann wrote:
> We have the minimal inline helper tcp_skb_mss to access
> skb_shinfo(skb)->gso_size, so also use it here to get mss.
> 
> Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
> ---
>  net/ipv4/tcp.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
> index b5d4ad9..6a1cf95 100644
> --- a/net/ipv4/tcp.c
> +++ b/net/ipv4/tcp.c
> @@ -2905,7 +2905,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb,
>  	oldlen = (u16)~skb->len;
>  	__skb_pull(skb, thlen);
>  
> -	mss = skb_shinfo(skb)->gso_size;
> +	mss = tcp_skb_mss(skb);

Conceptually, this is part of the GRO/GSO layer.

It would be nice to move this stuff in net/ipv4/tcp_offload.c
to makes things explicit.

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [PATCH net-next] net: minor: tcp: use tcp_skb_mss helper in tcp_tso_segment
  2013-06-07  1:20 ` Eric Dumazet
@ 2013-06-07  5:43   ` Daniel Borkmann
  0 siblings, 0 replies; 3+ messages in thread
From: Daniel Borkmann @ 2013-06-07  5:43 UTC (permalink / raw)
  To: Eric Dumazet; +Cc: davem, netdev

On 06/07/2013 03:20 AM, Eric Dumazet wrote:
> On Fri, 2013-06-07 at 02:07 +0200, Daniel Borkmann wrote:
>> We have the minimal inline helper tcp_skb_mss to access
>> skb_shinfo(skb)->gso_size, so also use it here to get mss.
>>
>> Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
>> ---
>>   net/ipv4/tcp.c | 4 ++--
>>   1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
>> index b5d4ad9..6a1cf95 100644
>> --- a/net/ipv4/tcp.c
>> +++ b/net/ipv4/tcp.c
>> @@ -2905,7 +2905,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb,
>>   	oldlen = (u16)~skb->len;
>>   	__skb_pull(skb, thlen);
>>
>> -	mss = skb_shinfo(skb)->gso_size;
>> +	mss = tcp_skb_mss(skb);
>
> Conceptually, this is part of the GRO/GSO layer.
>
> It would be nice to move this stuff in net/ipv4/tcp_offload.c
> to makes things explicit.

Agreed, will do.

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2013-06-07  5:43 UTC | newest]

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2013-06-07  0:07 [PATCH net-next] net: minor: tcp: use tcp_skb_mss helper in tcp_tso_segment Daniel Borkmann
2013-06-07  1:20 ` Eric Dumazet
2013-06-07  5:43   ` Daniel Borkmann

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