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[SK_BUFF]: Introduce skb_mac_header()

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For the places where we need a pointer to the mac header, it is still legal to
touch skb->mac.raw directly if just adding to, subtracting from or setting it
to another layer header.

This one also converts some more cases to skb_reset_mac_header() that my
regex missed as it had no spaces before nor after '=', ugh.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arnaldo Carvalho de Melo
2007-03-19 15:33:04 -07:00
committed by David S. Miller
parent 31713c333d
commit 98e399f82a
49 changed files with 108 additions and 88 deletions
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26
drivers/message/fusion/mptlan.c
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@@ -714,6 +714,7 @@ mpt_lan_sdu_send (struct sk_buff *skb, struct net_device *dev)
LANSendRequest_t *pSendReq;
SGETransaction32_t *pTrans;
SGESimple64_t *pSimple;
const unsigned char *mac;
dma_addr_t dma;
unsigned long flags;
int ctx;
@@ -784,6 +785,7 @@ mpt_lan_sdu_send (struct sk_buff *skb, struct net_device *dev)
// IOC_AND_NETDEV_NAMES_s_s(dev),
// ctx, skb, skb->data));
mac = skb_mac_header(skb);
#ifdef QLOGIC_NAA_WORKAROUND
{
struct NAA_Hosed *nh;
@@ -793,12 +795,12 @@ mpt_lan_sdu_send (struct sk_buff *skb, struct net_device *dev)
drops. */
read_lock_irq(&bad_naa_lock);
for (nh = mpt_bad_naa; nh != NULL; nh=nh->next) {
if ((nh->ieee[0] == skb->mac.raw[0]) &&
(nh->ieee[1] == skb->mac.raw[1]) &&
(nh->ieee[2] == skb->mac.raw[2]) &&
(nh->ieee[3] == skb->mac.raw[3]) &&
(nh->ieee[4] == skb->mac.raw[4]) &&
(nh->ieee[5] == skb->mac.raw[5])) {
if ((nh->ieee[0] == mac[0]) &&
(nh->ieee[1] == mac[1]) &&
(nh->ieee[2] == mac[2]) &&
(nh->ieee[3] == mac[3]) &&
(nh->ieee[4] == mac[4]) &&
(nh->ieee[5] == mac[5])) {
cur_naa = nh->NAA;
dlprintk ((KERN_INFO "mptlan/sdu_send: using NAA value "
"= %04x.\n", cur_naa));
@@ -810,12 +812,12 @@ mpt_lan_sdu_send (struct sk_buff *skb, struct net_device *dev)
#endif
pTrans->TransactionDetails[0] = cpu_to_le32((cur_naa << 16) |
(skb->mac.raw[0] << 8) |
(skb->mac.raw[1] << 0));
pTrans->TransactionDetails[1] = cpu_to_le32((skb->mac.raw[2] << 24) |
(skb->mac.raw[3] << 16) |
(skb->mac.raw[4] << 8) |
(skb->mac.raw[5] << 0));
(mac[0] << 8) |
(mac[1] << 0));
pTrans->TransactionDetails[1] = cpu_to_le32((mac[2] << 24) |
(mac[3] << 16) |
(mac[4] << 8) |
(mac[5] << 0));
pSimple = (SGESimple64_t *) &pTrans->TransactionDetails[2];