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[SK_BUFF]: Introduce skb_network_offset()

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For the quite common 'skb->nh.raw - skb->data' sequence.

Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Arnaldo Carvalho de Melo 2007-03-10 22:16:10 -03:00 • committed by David S. Miller
commit bbe735e424
18 changed files with 33 additions and 28 deletions
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2
drivers/net/atl1/atl1_main.c
View file

@ -1300,7 +1300,7 @@ static int atl1_tso(struct atl1_adapter *adapter, struct sk_buff *skb,
~csum_tcpudp_magic(skb->nh.iph->saddr,
skb->nh.iph->daddr, 0,
IPPROTO_TCP, 0);
ipofst = skb->nh.raw - skb->data;
ipofst = skb_network_offset(skb);
if (ipofst != ENET_HEADER_SIZE) /* 802.3 frame */
tso->tsopl |= 1 << TSO_PARAM_ETHTYPE_SHIFT;

2
drivers/net/chelsio/sge.c
View file

@ -1865,7 +1865,7 @@ int t1_start_xmit(struct sk_buff *skb, struct net_device *dev)
++st->tx_tso;
eth_type = skb->nh.raw - skb->data == ETH_HLEN ?
eth_type = skb_network_offset(skb) == ETH_HLEN ?
CPL_ETH_II : CPL_ETH_II_VLAN;
hdr = (struct cpl_tx_pkt_lso *)skb_push(skb, sizeof(*hdr));

2
drivers/net/cxgb3/sge.c
View file

@ -897,7 +897,7 @@ static void write_tx_pkt_wr(struct adapter *adap, struct sk_buff *skb,
d->flit[2] = 0;
cntrl |= V_TXPKT_OPCODE(CPL_TX_PKT_LSO);
hdr->cntrl = htonl(cntrl);
eth_type = skb->nh.raw - skb->data == ETH_HLEN ?
eth_type = skb_network_offset(skb) == ETH_HLEN ?
CPL_ETH_II : CPL_ETH_II_VLAN;
tso_info |= V_LSO_ETH_TYPE(eth_type) |
V_LSO_IPHDR_WORDS(skb->nh.iph->ihl) |

2
drivers/net/e1000/e1000_main.c
View file

@ -2910,7 +2910,7 @@ e1000_tso(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
0);
ipcse = 0;
}
ipcss = skb->nh.raw - skb->data;
ipcss = skb_network_offset(skb);
ipcso = (void *)&(skb->nh.iph->check) - (void *)skb->data;
tucss = skb->h.raw - skb->data;
tucso = (void *)&(skb->h.th->check) - (void *)skb->data;

2
drivers/net/gianfar.c
View file

@ -952,7 +952,7 @@ static inline void gfar_tx_checksum(struct sk_buff *skb, struct txfcb *fcb)
* frame (skb->data) and the start of the IP hdr.
* l4os is the distance between the start of the
* l3 hdr and the l4 hdr */
fcb->l3os = (u16)(skb->nh.raw - skb->data - GMAC_FCB_LEN);
fcb->l3os = (u16)(skb_network_offset(skb) - GMAC_FCB_LEN);
fcb->l4os = (u16)(skb->h.raw - skb->nh.raw);
fcb->flags = flags;

2
drivers/net/ixgb/ixgb_main.c
View file

@ -1195,7 +1195,7 @@ ixgb_tso(struct ixgb_adapter *adapter, struct sk_buff *skb)
skb->h.th->check = ~csum_tcpudp_magic(skb->nh.iph->saddr,
skb->nh.iph->daddr,
0, IPPROTO_TCP, 0);
ipcss = skb->nh.raw - skb->data;
ipcss = skb_network_offset(skb);
ipcso = (void *)&(skb->nh.iph->check) - (void *)skb->data;
ipcse = skb->h.raw - skb->data - 1;
tucss = skb->h.raw - skb->data;

2
drivers/net/netxen/netxen_nic_hw.c
View file

@ -386,7 +386,7 @@ void netxen_tso_check(struct netxen_adapter *adapter,
}
adapter->stats.xmitcsummed++;
desc->tcp_hdr_offset = skb->h.raw - skb->data;
desc->ip_hdr_offset = skb->nh.raw - skb->data;
desc->ip_hdr_offset = skb_network_offset(skb);
}
int netxen_is_flash_supported(struct netxen_adapter *adapter)