[SK_BUFF]: Introduce skb_transport_header(skb)

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

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 12 insertions, 7 deletions

diff --git a/drivers/net/appletalk/ltpc.c b/drivers/net/appletalk/ltpc.c
index dc3bce992dcf..43c17c85c97b 100644
--- a/drivers/net/appletalk/ltpc.c
+++ b/drivers/net/appletalk/ltpc.c
@@ -917,6 +917,7 @@ static int ltpc_xmit(struct sk_buff *skb, struct net_device *dev)
 
         int i;
         struct lt_sendlap cbuf;
+        unsigned char *hdr;
 
         cbuf.command = LT_SENDLAP;
         cbuf.dnode = skb->data[0];
@@ -932,11 +933,13 @@ static int ltpc_xmit(struct sk_buff *skb, struct net_device *dev)
                 printk("\n");
         }
 
-        do_write(dev,&cbuf,sizeof(cbuf),skb->h.raw,skb->len);
+        hdr = skb_transport_header(skb);
+        do_write(dev, &cbuf, sizeof(cbuf), hdr, skb->len);
 
         if(debug & DEBUG_UPPER) {
                 printk("sent %d ddp bytes\n",skb->len);
-                for(i=0;i<skb->len;i++) printk("%02x ",skb->h.raw[i]);
+                for (i = 0; i < skb->len; i++)
+                        printk("%02x ", hdr[i]);
                 printk("\n");
         }
 
diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c
index a70fe9145a2e..610e4769efa4 100644
--- a/drivers/net/cxgb3/sge.c
+++ b/drivers/net/cxgb3/sge.c
@@ -1324,12 +1324,14 @@ static void write_ofld_wr(struct adapter *adap, struct sk_buff *skb,
 
         flits = skb_transport_offset(skb) / 8;
         sgp = ndesc == 1 ? (struct sg_ent *)&d->flit[flits] : sgl;
-        sgl_flits = make_sgl(skb, sgp, skb->h.raw, skb->tail - skb->h.raw,
+        sgl_flits = make_sgl(skb, sgp, skb_transport_header(skb),
+                             skb->tail - skb_transport_header(skb),
                              adap->pdev);
         if (need_skb_unmap()) {
                 setup_deferred_unmapping(skb, adap->pdev, sgp, sgl_flits);
                 skb->destructor = deferred_unmap_destructor;
-                ((struct unmap_info *)skb->cb)->len = skb->tail - skb->h.raw;
+                ((struct unmap_info *)skb->cb)->len = (skb->tail -
+                                                       skb_transport_header(skb));
         }
 
         write_wr_hdr_sgl(ndesc, skb, d, pidx, q, sgl, flits, sgl_flits,
@@ -1351,7 +1353,7 @@ static inline unsigned int calc_tx_descs_ofld(const struct sk_buff *skb)
                 return 1;       /* packet fits as immediate data */
 
         flits = skb_transport_offset(skb) / 8;  /* headers */
-        if (skb->tail != skb->h.raw)
+        if (skb->tail != skb_transport_header(skb))
                 cnt++;
         return flits_to_desc(flits + sgl_len(cnt));
 }
diff --git a/drivers/s390/net/qeth_eddp.c b/drivers/s390/net/qeth_eddp.c
index b8e84674e170..5890bb5ad23e 100644
--- a/drivers/s390/net/qeth_eddp.c
+++ b/drivers/s390/net/qeth_eddp.c
@@ -476,13 +476,13 @@ qeth_eddp_fill_context_tcp(struct qeth_eddp_context *ctx,
                 eddp = qeth_eddp_create_eddp_data(qhdr,
                                                   skb_network_header(skb),
                                                   ip_hdrlen(skb),
-                                                  skb->h.raw,
+                                                  skb_transport_header(skb),
                                                   tcp_hdrlen(skb));
         else
                 eddp = qeth_eddp_create_eddp_data(qhdr,
                                                   skb_network_header(skb),
                                                   sizeof(struct ipv6hdr),
-                                                  skb->h.raw,
+                                                  skb_transport_header(skb),
                                                   tcp_hdrlen(skb));
 
         if (eddp == NULL) {