Messages in this thread Patch in this message | | | From | Edward Cree <> | Subject | [RFC PATCH v2 3/4] net: core: use a dynamic_call for dst_input | Date | Sat, 2 Feb 2019 00:07:48 +0000 |
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Typically there will be a small number of callees, such as ip_local_deliver or ip_forward, which will cover most packets.
Signed-off-by: Edward Cree <ecree@solarflare.com> --- include/net/dst.h | 5 ++++- net/core/dst.c | 2 ++ 2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/include/net/dst.h b/include/net/dst.h index 6cf0870414c7..5dd838b9a7d2 100644 --- a/include/net/dst.h +++ b/include/net/dst.h @@ -16,6 +16,7 @@ #include <linux/bug.h> #include <linux/jiffies.h> #include <linux/refcount.h> +#include <linux/dynamic_call.h> #include <net/neighbour.h> #include <asm/processor.h> @@ -444,10 +445,12 @@ static inline int dst_output(struct net *net, struct sock *sk, struct sk_buff *s return skb_dst(skb)->output(net, sk, skb); } +DEFINE_DYNAMIC_CALL_1(int, dst_input, struct sk_buff *); + /* Input packet from network to transport. */ static inline int dst_input(struct sk_buff *skb) { - return skb_dst(skb)->input(skb); + return dynamic_dst_input(skb_dst(skb)->input, skb); } static inline struct dst_entry *dst_check(struct dst_entry *dst, u32 cookie) diff --git a/net/core/dst.c b/net/core/dst.c index 81ccf20e2826..a00a75bab84e 100644 --- a/net/core/dst.c +++ b/net/core/dst.c @@ -342,3 +342,5 @@ void metadata_dst_free_percpu(struct metadata_dst __percpu *md_dst) free_percpu(md_dst); } EXPORT_SYMBOL_GPL(metadata_dst_free_percpu); + +DYNAMIC_CALL_1(int, dst_input, struct sk_buff *);
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