[IPV6] SIT: Add PRL management for ISATAP.

This patch updates the Linux the Intra-Site Automatic Tunnel Addressing
Protocol (ISATAP) implementation. It places the ISATAP potential router
list (PRL) in the kernel and adds three new private ioctls for PRL
management.

[Add several changes of structure name, constant names etc. - yoshfuji]

Signed-off-by: Fred L. Templin <fred.l.templin@boeing.com>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index ff72145d5d9e..e10e55c9b081 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -313,7 +313,8 @@ struct sk_buff {
         __u16                   tc_verd;        /* traffic control verdict */
 #endif
 #endif
-        /* 2 byte hole */
+        __u8                    ndisc_nodetype:2;
+        /* 14 bit hole */
 
 #ifdef CONFIG_NET_DMA
         dma_cookie_t            dma_cookie;