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/esp6.c b/net/ipv6/esp6.c
index d15da13..7b6e830 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -17,10 +17,10 @@
  * Authors
  *
  *	Mitsuru KANDA @USAGI       : IPv6 Support
- * 	Kazunori MIYAZAWA @USAGI   :
- * 	Kunihiro Ishiguro <kunihiro@ipinfusion.com>
+ *	Kazunori MIYAZAWA @USAGI   :
+ *	Kunihiro Ishiguro <kunihiro@ipinfusion.com>
  *
- * 	This file is derived from net/ipv4/esp.c
+ *	This file is derived from net/ipv4/esp.c
  */
 
 #define pr_fmt(fmt) "IPv6: " fmt
@@ -598,7 +598,7 @@
 	case XFRM_MODE_BEET:
 		if (x->sel.family != AF_INET6)
 			x->props.header_len += IPV4_BEET_PHMAXLEN +
-				               (sizeof(struct ipv6hdr) - sizeof(struct iphdr));
+					       (sizeof(struct ipv6hdr) - sizeof(struct iphdr));
 		break;
 	case XFRM_MODE_TRANSPORT:
 		break;