[PATCH net-next 2/4] net: use indirect call helpers for dst_output

[Brian Vazquez <brianvv@google.com>]

From: brianvv <brianvv@google.com>

This patch avoids the indirect call for the common case:
ip6_output and ip_output

Signed-off-by: brianvv <brianvv@google.com>
---
 include/net/dst.h | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/include/net/dst.h b/include/net/dst.h
index 98cf6e8c06c4..3932e9931f08 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -436,10 +436,16 @@ static inline void dst_set_expires(struct dst_entry *dst, int timeout)
 		dst->expires = expires;
 }
 
+INDIRECT_CALLABLE_DECLARE(int ip6_output(struct net *, struct sock *,
+					 struct sk_buff *));
+INDIRECT_CALLABLE_DECLARE(int ip_output(struct net *, struct sock *,
+					 struct sk_buff *));
 /* Output packet to network from transport.  */
 static inline int dst_output(struct net *net, struct sock *sk, struct sk_buff *skb)
 {
-	return skb_dst(skb)->output(net, sk, skb);
+	return INDIRECT_CALL_INET(skb_dst(skb)->output,
+				  ip6_output, ip_output,
+				  net, sk, skb);
 }
 
 INDIRECT_CALLABLE_DECLARE(int ip6_input(struct sk_buff *));
-- 
2.29.2.576.ga3fc446d84-goog