ipv6: White-space cleansing : Line Layouts

This patch makes no changes to the logic of the code but simply addresses
coding style issues as detected by checkpatch.

Both objdump and diff -w show no differences.

A number of items are addressed in this patch:
* Multiple spaces converted to tabs
* Spaces before tabs removed.
* Spaces in pointer typing cleansed (char *)foo etc.
* Remove space after sizeof
* Ensure spacing around comparators such as if statements.

Signed-off-by: Ian Morris <ipm@chirality.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index 51d54dc..a3084ab 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -15,8 +15,8 @@
  */
 /* Changes
  *
- * 	Mitsuru KANDA @USAGI and
- * 	YOSHIFUJI Hideaki @USAGI: Remove ipv6_parse_exthdrs().
+ *	Mitsuru KANDA @USAGI and
+ *	YOSHIFUJI Hideaki @USAGI: Remove ipv6_parse_exthdrs().
  */
 
 #include <linux/errno.h>
@@ -65,7 +65,7 @@
 int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev)
 {
 	const struct ipv6hdr *hdr;
-	u32 		pkt_len;
+	u32 pkt_len;
 	struct inet6_dev *idev;
 	struct net *net = dev_net(skb->dev);