From: Tom Herbert <tom@herbertland.com>
Date: Mon, 24 Aug 2015 16:45:41 +0000 (-0700)
Subject: lwt: Add cfg argument to build_state
X-Git-Tag: omap-for-v4.3/fixes-rc1~110^2~105^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=127eb7cd3c210afead788991a30950a9e36759ea;p=pandora-kernel.git

lwt: Add cfg argument to build_state

Add cfg and family arguments to lwt build state functions. cfg is a void
pointer and will either be a pointer to a fib_config or fib6_config
structure. The family parameter indicates which one (either AF_INET
or AF_INET6).

LWT encpasulation implementation may use the fib configuration to build
the LWT state.

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/include/net/lwtunnel.h b/include/net/lwtunnel.h
index 843489884448..fce0e35e74d0 100644
--- a/include/net/lwtunnel.h
+++ b/include/net/lwtunnel.h
@@ -26,6 +26,7 @@ struct lwtunnel_state {
 
 struct lwtunnel_encap_ops {
 	int (*build_state)(struct net_device *dev, struct nlattr *encap,
+			   unsigned int family, const void *cfg,
 			   struct lwtunnel_state **ts);
 	int (*output)(struct sock *sk, struct sk_buff *skb);
 	int (*input)(struct sk_buff *skb);
@@ -80,6 +81,7 @@ int lwtunnel_encap_del_ops(const struct lwtunnel_encap_ops *op,
 			   unsigned int num);
 int lwtunnel_build_state(struct net_device *dev, u16 encap_type,
 			 struct nlattr *encap,
+			 unsigned int family, const void *cfg,
 			 struct lwtunnel_state **lws);
 int lwtunnel_fill_encap(struct sk_buff *skb,
 			struct lwtunnel_state *lwtstate);
@@ -130,6 +132,7 @@ static inline int lwtunnel_encap_del_ops(const struct lwtunnel_encap_ops *op,
 
 static inline int lwtunnel_build_state(struct net_device *dev, u16 encap_type,
 				       struct nlattr *encap,
+				       unsigned int family, const void *cfg,
 				       struct lwtunnel_state **lws)
 {
 	return -EOPNOTSUPP;
diff --git a/net/core/lwtunnel.c b/net/core/lwtunnel.c
index e924c2e08554..dfb1a9ca0835 100644
--- a/net/core/lwtunnel.c
+++ b/net/core/lwtunnel.c
@@ -72,7 +72,8 @@ int lwtunnel_encap_del_ops(const struct lwtunnel_encap_ops *ops,
 EXPORT_SYMBOL(lwtunnel_encap_del_ops);
 
 int lwtunnel_build_state(struct net_device *dev, u16 encap_type,
-			 struct nlattr *encap, struct lwtunnel_state **lws)
+			 struct nlattr *encap, unsigned int family,
+			 const void *cfg, struct lwtunnel_state **lws)
 {
 	const struct lwtunnel_encap_ops *ops;
 	int ret = -EINVAL;
@@ -85,7 +86,7 @@ int lwtunnel_build_state(struct net_device *dev, u16 encap_type,
 	rcu_read_lock();
 	ops = rcu_dereference(lwtun_encaps[encap_type]);
 	if (likely(ops && ops->build_state))
-		ret = ops->build_state(dev, encap, lws);
+		ret = ops->build_state(dev, encap, family, cfg, lws);
 	rcu_read_unlock();
 
 	return ret;
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