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Commit 5bfa787f authored by David S. Miller's avatar David S. Miller
Browse files

ipv4: ip_route_output_key() is better as an inline. 



This avoid a stack frame at zero cost.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent b23dd4fe

include/net/route.h

+5 −1
Original line number Diff line number Diff line
@@ -119,11 +119,15 @@ extern void ip_rt_redirect(__be32 old_gw, __be32 dst, __be32 new_gw, 
extern void		rt_cache_flush(struct net *net, int how);

extern void		rt_cache_flush_batch(struct net *net);

extern struct rtable *__ip_route_output_key(struct net *, const struct flowi *flp);

extern struct rtable *ip_route_output_key(struct net *, struct flowi *flp);

extern struct rtable *ip_route_output_flow(struct net *, struct flowi *flp,

					   struct sock *sk);

extern struct dst_entry *ipv4_blackhole_route(struct net *net, struct dst_entry *dst_orig);



static inline struct rtable *ip_route_output_key(struct net *net, struct flowi *flp)

{

	return ip_route_output_flow(net, flp, NULL);

}



extern int ip_route_input_common(struct sk_buff *skb, __be32 dst, __be32 src,

				 u8 tos, struct net_device *devin, bool noref);

net/ipv4/route.c

+0 −6
Original line number Diff line number Diff line
@@ -2736,12 +2736,6 @@ struct rtable *ip_route_output_flow(struct net *net, struct flowi *flp, 
}

EXPORT_SYMBOL_GPL(ip_route_output_flow);



struct rtable *ip_route_output_key(struct net *net, struct flowi *flp)

{

	return ip_route_output_flow(net, flp, NULL);

}

EXPORT_SYMBOL(ip_route_output_key);



static int rt_fill_info(struct net *net,

			struct sk_buff *skb, u32 pid, u32 seq, int event,

			int nowait, unsigned int flags)