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authorHerbert Xu <herbert@gondor.apana.org.au>2009-01-04 16:13:19 -0800
committerDavid S. Miller <davem@davemloft.net>2009-01-04 16:13:19 -0800
commitb530256d2e0f1a75fab31f9821129fff1bb49faa (patch)
treee3e615d405921fc157169180d53c91d09b9a7186 /net/core
parentcfc3a44c3c32abe48898398d9a92e8524c976803 (diff)
gro: Use gso_size to store MSS
In order to allow GRO packets without frag_list at all, we need to store the MSS in the packet itself. The obvious place is gso_size. The only thing to watch out for is if the packet ends up not being GRO then we need to clear gso_size before pushing the packet into the stack. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
-rw-r--r--net/core/dev.c2
-rw-r--r--net/core/skbuff.c1
2 files changed, 3 insertions, 0 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index 09c66a449da..1e1a6806645 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2365,6 +2365,7 @@ static int napi_gro_complete(struct sk_buff *skb)
}
out:
+ skb_shinfo(skb)->gso_size = 0;
__skb_push(skb, -skb_network_offset(skb));
return netif_receive_skb(skb);
}
@@ -2446,6 +2447,7 @@ int napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
}
NAPI_GRO_CB(skb)->count = 1;
+ skb_shinfo(skb)->gso_size = skb->len;
skb->next = napi->gro_list;
napi->gro_list = skb;
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index b8d0abb2643..3aafb10325b 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -2613,6 +2613,7 @@ int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb)
*NAPI_GRO_CB(nskb) = *NAPI_GRO_CB(p);
skb_shinfo(nskb)->frag_list = p;
+ skb_shinfo(nskb)->gso_size = skb_shinfo(p)->gso_size;
skb_header_release(p);
nskb->prev = p;