[IPV4]: Uninline netfilter okfns Now that we don't pass double skb pointers to nf_hook_slow anymore, gcc can generate tail calls for some of the netfilter hook okfn invocations, so there is no need to inline the functions anymore. This caused huge code bloat since we ended up with one inlined version and one out-of-line version since we pass the address to nf_hook_slow. Before: text data bss dec hex filename 8997385 1016524 524652 10538561 a0ce41 vmlinux After: text data bss dec hex filename 8994009 1016524 524652 10535185 a0c111 vmlinux ------------------------------------------------------- -3376 All cases have been verified to generate tail-calls with and without netfilter. The okfns in ipmr and xfrm4_input still remain inline because gcc can't generate tail-calls for them. Signed-off-by: Patrick McHardy --- commit 39533dafc9b0458fecebd2da36d682837c6ff9a2 tree af5f872142f9a0703c167843a1f51642f89c5662 parent 3e7e83795236b54106ef3ac57f140d97300aa5f5 author Patrick McHardy Mon, 15 Oct 2007 09:56:24 +0200 committer Patrick McHardy Mon, 15 Oct 2007 09:56:24 +0200 net/ipv4/ip_forward.c | 2 +- net/ipv4/ip_input.c | 4 ++-- net/ipv4/ip_output.c | 2 +- 3 files changed, 4 insertions(+), 4 deletions(-) diff --git a/net/ipv4/ip_forward.c b/net/ipv4/ip_forward.c index afbf938..877da3e 100644 --- a/net/ipv4/ip_forward.c +++ b/net/ipv4/ip_forward.c @@ -40,7 +40,7 @@ #include #include -static inline int ip_forward_finish(struct sk_buff *skb) +static int ip_forward_finish(struct sk_buff *skb) { struct ip_options * opt = &(IPCB(skb)->opt); diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c index 8f75e43..168c871 100644 --- a/net/ipv4/ip_input.c +++ b/net/ipv4/ip_input.c @@ -195,7 +195,7 @@ int ip_call_ra_chain(struct sk_buff *skb) return 0; } -static inline int ip_local_deliver_finish(struct sk_buff *skb) +static int ip_local_deliver_finish(struct sk_buff *skb) { __skb_pull(skb, ip_hdrlen(skb)); @@ -324,7 +324,7 @@ drop: return -1; } -static inline int ip_rcv_finish(struct sk_buff *skb) +static int ip_rcv_finish(struct sk_buff *skb) { const struct iphdr *iph = ip_hdr(skb); struct rtable *rt; diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index 699f067..f508835 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -202,7 +202,7 @@ static inline int ip_skb_dst_mtu(struct sk_buff *skb) skb->dst->dev->mtu : dst_mtu(skb->dst); } -static inline int ip_finish_output(struct sk_buff *skb) +static int ip_finish_output(struct sk_buff *skb) { #if defined(CONFIG_NETFILTER) && defined(CONFIG_XFRM) /* Policy lookup after SNAT yielded a new policy */