net: use indirect call helpers for dst_mtu
This patch avoids the indirect call for the common case:
ip6_mtu and ipv4_mtu
Signed-off-by: Brian Vazquez <brianvv@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 92b400e..886b209 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -83,7 +83,8 @@ enum rt6_nud_state {
static struct dst_entry *ip6_dst_check(struct dst_entry *dst, u32 cookie);
static unsigned int ip6_default_advmss(const struct dst_entry *dst);
-static unsigned int ip6_mtu(const struct dst_entry *dst);
+INDIRECT_CALLABLE_SCOPE
+unsigned int ip6_mtu(const struct dst_entry *dst);
static struct dst_entry *ip6_negative_advice(struct dst_entry *);
static void ip6_dst_destroy(struct dst_entry *);
static void ip6_dst_ifdown(struct dst_entry *,
@@ -3089,7 +3090,7 @@ static unsigned int ip6_default_advmss(const struct dst_entry *dst)
return mtu;
}
-static unsigned int ip6_mtu(const struct dst_entry *dst)
+INDIRECT_CALLABLE_SCOPE unsigned int ip6_mtu(const struct dst_entry *dst)
{
struct inet6_dev *idev;
unsigned int mtu;
@@ -3111,6 +3112,7 @@ static unsigned int ip6_mtu(const struct dst_entry *dst)
return mtu - lwtunnel_headroom(dst->lwtstate, mtu);
}
+EXPORT_SYMBOL(ip6_mtu);
/* MTU selection:
* 1. mtu on route is locked - use it