summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorCong Wang <amwang@redhat.com>2013-08-31 13:44:28 +0800
committerDavid S. Miller <davem@davemloft.net>2013-08-31 22:29:59 -0400
commit3ce9b35ff6de8dfebb0b0045e667c000f632e563 (patch)
treeecde35b0c857ba52ef90724bf12f037f52ab4957
parentae5dbf1ad83cb90921a400d15fb18afae66e1e56 (diff)
downloadlinux-stable-3ce9b35ff6de8dfebb0b0045e667c000f632e563.tar.gz
linux-stable-3ce9b35ff6de8dfebb0b0045e667c000f632e563.tar.bz2
linux-stable-3ce9b35ff6de8dfebb0b0045e667c000f632e563.zip
ipv6: move ip6_dst_hoplimit() into core kernel
It will be used by vxlan, and may not be inlined. Cc: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/net/ip6_route.h2
-rw-r--r--include/net/ipv6.h2
-rw-r--r--net/ipv6/output_core.c22
-rw-r--r--net/ipv6/route.c19
4 files changed, 24 insertions, 21 deletions
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h
index f667248202b6..f525e7038cca 100644
--- a/include/net/ip6_route.h
+++ b/include/net/ip6_route.h
@@ -112,8 +112,6 @@ extern struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
const struct in6_addr *addr,
bool anycast);
-extern int ip6_dst_hoplimit(struct dst_entry *dst);
-
/*
* support functions for ND
*
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 7bdff0455065..bbf1c8fb8511 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -658,6 +658,8 @@ static inline int ipv6_addr_diff(const struct in6_addr *a1, const struct in6_add
extern void ipv6_select_ident(struct frag_hdr *fhdr, struct rt6_info *rt);
+extern int ip6_dst_hoplimit(struct dst_entry *dst);
+
/*
* Header manipulation
*/
diff --git a/net/ipv6/output_core.c b/net/ipv6/output_core.c
index ab92a3673fbb..53a062187db1 100644
--- a/net/ipv6/output_core.c
+++ b/net/ipv6/output_core.c
@@ -5,6 +5,7 @@
#include <linux/export.h>
#include <net/ipv6.h>
#include <net/ip6_fib.h>
+#include <net/addrconf.h>
void ipv6_select_ident(struct frag_hdr *fhdr, struct rt6_info *rt)
{
@@ -75,3 +76,24 @@ int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr)
return offset;
}
EXPORT_SYMBOL(ip6_find_1stfragopt);
+
+#if IS_ENABLED(CONFIG_IPV6)
+int ip6_dst_hoplimit(struct dst_entry *dst)
+{
+ int hoplimit = dst_metric_raw(dst, RTAX_HOPLIMIT);
+ if (hoplimit == 0) {
+ struct net_device *dev = dst->dev;
+ struct inet6_dev *idev;
+
+ rcu_read_lock();
+ idev = __in6_dev_get(dev);
+ if (idev)
+ hoplimit = idev->cnf.hop_limit;
+ else
+ hoplimit = dev_net(dev)->ipv6.devconf_all->hop_limit;
+ rcu_read_unlock();
+ }
+ return hoplimit;
+}
+EXPORT_SYMBOL(ip6_dst_hoplimit);
+#endif
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 55236a84c748..b770085ae36d 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1354,25 +1354,6 @@ out:
return entries > rt_max_size;
}
-int ip6_dst_hoplimit(struct dst_entry *dst)
-{
- int hoplimit = dst_metric_raw(dst, RTAX_HOPLIMIT);
- if (hoplimit == 0) {
- struct net_device *dev = dst->dev;
- struct inet6_dev *idev;
-
- rcu_read_lock();
- idev = __in6_dev_get(dev);
- if (idev)
- hoplimit = idev->cnf.hop_limit;
- else
- hoplimit = dev_net(dev)->ipv6.devconf_all->hop_limit;
- rcu_read_unlock();
- }
- return hoplimit;
-}
-EXPORT_SYMBOL(ip6_dst_hoplimit);
-
/*
*
*/