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| author | Arnaldo Carvalho de Melo <acme@ghostprotocols.net> | 2007-03-31 11:55:19 -0300 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-04-25 22:28:29 -0700 |
| commit | 27d7ff46a3498d3debc6ba68fb8014c702b81170 (patch) | |
| tree | b5a0c617cf8339524d3b1f1633e08eae7b94cf86 /net/atm/mpc.c | |
| parent | 3dbad80ac7632f243b824d469301abb97ec634a1 (diff) | |
| download | linux-27d7ff46a3498d3debc6ba68fb8014c702b81170.tar.gz linux-27d7ff46a3498d3debc6ba68fb8014c702b81170.tar.bz2 linux-27d7ff46a3498d3debc6ba68fb8014c702b81170.zip | |
[SK_BUFF]: Introduce skb_copy_to_linear_data{_offset}
To clearly state the intent of copying to linear sk_buffs, _offset being a
overly long variant but interesting for the sake of saving some bytes.
Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Diffstat (limited to 'net/atm/mpc.c')
| -rw-r--r-- | net/atm/mpc.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/net/atm/mpc.c b/net/atm/mpc.c index 4d2592c14090..813e08d6dc7c 100644 --- a/net/atm/mpc.c +++ b/net/atm/mpc.c @@ -504,11 +504,13 @@ static int send_via_shortcut(struct sk_buff *skb, struct mpoa_client *mpc) tagged_llc_snap_hdr.tag = entry->ctrl_info.tag; skb_pull(skb, ETH_HLEN); /* get rid of Eth header */ skb_push(skb, sizeof(tagged_llc_snap_hdr)); /* add LLC/SNAP header */ - memcpy(skb->data, &tagged_llc_snap_hdr, sizeof(tagged_llc_snap_hdr)); + skb_copy_to_linear_data(skb, &tagged_llc_snap_hdr, + sizeof(tagged_llc_snap_hdr)); } else { skb_pull(skb, ETH_HLEN); /* get rid of Eth header */ skb_push(skb, sizeof(struct llc_snap_hdr)); /* add LLC/SNAP header + tag */ - memcpy(skb->data, &llc_snap_mpoa_data, sizeof(struct llc_snap_hdr)); + skb_copy_to_linear_data(skb, &llc_snap_mpoa_data, + sizeof(struct llc_snap_hdr)); } atomic_add(skb->truesize, &sk_atm(entry->shortcut)->sk_wmem_alloc); @@ -711,7 +713,8 @@ static void mpc_push(struct atm_vcc *vcc, struct sk_buff *skb) return; } skb_push(new_skb, eg->ctrl_info.DH_length); /* add MAC header */ - memcpy(new_skb->data, eg->ctrl_info.DLL_header, eg->ctrl_info.DH_length); + skb_copy_to_linear_data(new_skb, eg->ctrl_info.DLL_header, + eg->ctrl_info.DH_length); new_skb->protocol = eth_type_trans(new_skb, dev); skb_reset_network_header(new_skb); @@ -936,7 +939,7 @@ int msg_to_mpoad(struct k_message *mesg, struct mpoa_client *mpc) if (skb == NULL) return -ENOMEM; skb_put(skb, sizeof(struct k_message)); - memcpy(skb->data, mesg, sizeof(struct k_message)); + skb_copy_to_linear_data(skb, mesg, sizeof(*mesg)); atm_force_charge(mpc->mpoad_vcc, skb->truesize); sk = sk_atm(mpc->mpoad_vcc); |