[SK_BUFF]: Some more simple skb_reset_network_header conversions

This time of the type:

 skb->nh.iph = (struct iphdr *)skb->data;

That is completely equivalent to:

 skb->nh.raw = skb->data;

Wonder why people love casts... :-)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ieee80211/ieee80211_rx.c

@@ -793,7 +793,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
 		skb2->protocol = __constant_htons(ETH_P_802_3);
 		skb_reset_mac_header(skb2);
 		skb_reset_network_header(skb2);
-		/* skb2->nh.raw = skb2->data + ETH_HLEN; */
+		/* skb2->nh.raw += ETH_HLEN; */
 		dev_queue_xmit(skb2);
 	}
 #endif

net/ipv4/ipmr.c

@@ -1454,7 +1454,7 @@ int pim_rcv_v1(struct sk_buff * skb)
 
 	skb->mac.raw = skb->nh.raw;
 	skb_pull(skb, (u8*)encap - skb->data);
-	skb->nh.iph = (struct iphdr *)skb->data;
+	skb_reset_network_header(skb);
 	skb->dev = reg_dev;
 	skb->protocol = htons(ETH_P_IP);
 	skb->ip_summed = 0;
@@ -1509,7 +1509,7 @@ static int pim_rcv(struct sk_buff * skb)
 
 	skb->mac.raw = skb->nh.raw;
 	skb_pull(skb, (u8*)encap - skb->data);
-	skb->nh.iph = (struct iphdr *)skb->data;
+	skb_reset_network_header(skb);
 	skb->dev = reg_dev;
 	skb->protocol = htons(ETH_P_IP);
 	skb->ip_summed = 0;

net/sctp/input.c

@@ -528,7 +528,7 @@ void sctp_v4_err(struct sk_buff *skb, __u32 info)
 	/* Fix up skb to look at the embedded net header. */
 	saveip = skb->nh.raw;
 	savesctp  = skb->h.raw;
-	skb->nh.iph = iph;
+	skb_reset_network_header(skb);
 	skb->h.raw = (char *)sh;
 	sk = sctp_err_lookup(AF_INET, skb, sh, &asoc, &transport);
 	/* Put back, the original pointers. */