[IPV4]: Consistency and whitespace cleanup of ip_rcv()

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index 81e18023dc19c299afa03108df2ddd1756e2e342..322b082ede1ecaa58545ea34017d4873e9524c96 100644 (file)
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -361,6 +361,7 @@ drop:
 int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev)
 {
        struct iphdr *iph;
+       u32 len;
 
        /* When the interface is in promisc. mode, drop all the crap
         * that it receives, do not try to analyse it.
@@ -392,7 +393,7 @@ int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt,
         */
 
        if (iph->ihl < 5 || iph->version != 4)
-               goto inhdr_error; 
+               goto inhdr_error;
 
        if (!pskb_may_pull(skb, iph->ihl*4))
                goto inhdr_error;
@@ -400,21 +401,19 @@ int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt,
        iph = skb->nh.iph;
 
        if (ip_fast_csum((u8 *)iph, iph->ihl) != 0)
-               goto inhdr_error; 
+               goto inhdr_error;
 
-       {
-               __u32 len = ntohs(iph->tot_len); 
-               if (skb->len < len || len < (iph->ihl<<2))
-                       goto inhdr_error;
+       len = ntohs(iph->tot_len);
+       if (skb->len < len || len < (iph->ihl*4))
+               goto inhdr_error;
 
-               /* Our transport medium may have padded the buffer out. Now we know it
-                * is IP we can trim to the true length of the frame.
-                * Note this now means skb->len holds ntohs(iph->tot_len).
-                */
-               if (pskb_trim_rcsum(skb, len)) {
-                       IP_INC_STATS_BH(IPSTATS_MIB_INDISCARDS);
-                       goto drop;
-               }
+       /* Our transport medium may have padded the buffer out. Now we know it
+        * is IP we can trim to the true length of the frame.
+        * Note this now means skb->len holds ntohs(iph->tot_len).
+        */
+       if (pskb_trim_rcsum(skb, len)) {
+               IP_INC_STATS_BH(IPSTATS_MIB_INDISCARDS);
+               goto drop;
        }
 
        return NF_HOOK(PF_INET, NF_IP_PRE_ROUTING, skb, dev, NULL,