From: Stephen Rothwell <redacted>
Date: Mon, 30 Apr 2012 15:58:36 +1000

Hi all,

After merging the final tree, today's linux-next build (powerpc
allyesconfig) failed like this:

net/l2tp/l2tp_core.c: In function 'l2tp_verify_udp_checksum':
net/l2tp/l2tp_core.c:464:7: error: implicit declaration of function 'csum_ipv6_magic' [-Werror=implicit-function-declaration]

Caused by commit d2cf3361677e ("net/l2tp: add support for L2TP over IPv6
UDP").  Include file missing.

I have reverted that commit for today.

The fix is less work than the revert on this one isn't it? :-)

Pushed to net-next, thanks Stephen:

--------------------
l2tp: Add missing net/net/ip6_checksum.h include.

Reported-by: Stephen Rothwell <redacted>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/l2tp/l2tp_core.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index e91d559..0ca9bc3 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c

@@ -56,6 +56,7 @@
 #include <net/inet6_connection_sock.h>
 #include <net/inet_ecn.h>
 #include <net/ip6_route.h>
+#include <net/ip6_checksum.h>
 
 #include <asm/byteorder.h>
 #include <linux/atomic.h>

-- 
1.7.7.6