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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2006-03-20 22:43:56 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2006-03-20 22:43:56 -0800 |
| commit | cbb042f9e1292434e3cacb90e67d8d381aeac5a9 (patch) | |
| tree | cc42f42232e56b68111cfebdc175197d8607bdd7 /drivers/net/pppoe.c | |
| parent | ecba320f2e95c9a0c35011d1ecb1db4419980536 (diff) | |
| download | lwn-cbb042f9e1292434e3cacb90e67d8d381aeac5a9.tar.gz lwn-cbb042f9e1292434e3cacb90e67d8d381aeac5a9.zip | |
[NET]: Replace skb_pull/skb_postpull_rcsum with skb_pull_rcsum
We're now starting to have quite a number of places that do skb_pull
followed immediately by an skb_postpull_rcsum. We can merge these two
operations into one function with skb_pull_rcsum. This makes sense
since most pull operations on receive skb's need to update the
checksum.
I've decided to make this out-of-line since it is fairly big and the
fast path where hardware checksums are enabled need to call
csum_partial anyway.
Since this is a brand new function we get to add an extra check on the
len argument. As it is most callers of skb_pull ignore its return
value which essentially means that there is no check on the len
argument.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/pppoe.c')
| -rw-r--r-- | drivers/net/pppoe.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/net/pppoe.c b/drivers/net/pppoe.c index 9369f811075d..475dc930380f 100644 --- a/drivers/net/pppoe.c +++ b/drivers/net/pppoe.c @@ -337,8 +337,7 @@ static int pppoe_rcv_core(struct sock *sk, struct sk_buff *skb) if (sk->sk_state & PPPOX_BOUND) { struct pppoe_hdr *ph = (struct pppoe_hdr *) skb->nh.raw; int len = ntohs(ph->length); - skb_pull(skb, sizeof(struct pppoe_hdr)); - skb_postpull_rcsum(skb, ph, sizeof(*ph)); + skb_pull_rcsum(skb, sizeof(struct pppoe_hdr)); if (pskb_trim_rcsum(skb, len)) goto abort_kfree; |