From c9b4f2285f0ca86577af271b0901823e669a575b Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Fri, 8 Mar 2013 02:07:16 +0000
Subject: [PATCH] --- yaml --- r: 368151 b: refs/heads/master c:
 b7ef213ef65256168df83ddfbb8131ed9adc10f9 h: refs/heads/master i:   368149:
 474b613d2a91ff6eed6cbf1a461231830fe77c38   368147:
 e4b11325148a0e806a7c0e09ac6a2b2254659cad   368143:
 3df40c44f8b47c5247755fcea697b0982ea7316b v: v3

---
 [refs]                   |  2 +-
 trunk/include/net/ipv6.h | 12 ++++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 5ab0b9249105..ffc5d2badd98 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 80580d4b20e13383009b4fb2043235a7d0a42589
+refs/heads/master: b7ef213ef65256168df83ddfbb8131ed9adc10f9
diff --git a/trunk/include/net/ipv6.h b/trunk/include/net/ipv6.h
index 988c9f28f0fc..42ef6abf25c3 100644
--- a/trunk/include/net/ipv6.h
+++ b/trunk/include/net/ipv6.h
@@ -320,6 +320,18 @@ static inline int ipv6_addr_src_scope(const struct in6_addr *addr)
 	return __ipv6_addr_src_scope(__ipv6_addr_type(addr));
 }
 
+static inline bool __ipv6_addr_needs_scope_id(int type)
+{
+	return type & IPV6_ADDR_LINKLOCAL ||
+	       (type & IPV6_ADDR_MULTICAST &&
+		(type & (IPV6_ADDR_LOOPBACK|IPV6_ADDR_LINKLOCAL)));
+}
+
+static inline __u32 ipv6_iface_scope_id(const struct in6_addr *addr, int iface)
+{
+	return __ipv6_addr_needs_scope_id(__ipv6_addr_type(addr)) ? iface : 0;
+}
+
 static inline int ipv6_addr_cmp(const struct in6_addr *a1, const struct in6_addr *a2)
 {
 	return memcmp(a1, a2, sizeof(struct in6_addr));