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authorAlexey Kodanev <alexey.kodanev@oracle.com>2018-04-03 14:00:07 +0200
committerDavid S. Miller <davem@davemloft.net>2018-04-04 17:31:57 +0200
commit7d6850f7c618d8f13d7945dd0dcee98223be6459 (patch)
treef282b9757cd626bc93f194ac09faccca3c4772ff /net/ipv6/route.c
parentnet: phy: marvell10g: add thermal hwmon device (diff)
downloadlinux-7d6850f7c618d8f13d7945dd0dcee98223be6459.tar.xz
linux-7d6850f7c618d8f13d7945dd0dcee98223be6459.zip
ipv6: add a wrapper for ip6_dst_store() with flowi6 checks
Move commonly used pattern of ip6_dst_store() usage to a separate function - ip6_sk_dst_store_flow(), which will check the addresses for equality using the flow information, before saving them. There is no functional changes in this patch. In addition, it will be used in the next patch, in ip6_sk_dst_lookup_flow(). Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
-rw-r--r--net/ipv6/route.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index f239f91d2efb..49b954d6d0fa 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -2229,6 +2229,23 @@ void ip6_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, __be32 mtu)
}
EXPORT_SYMBOL_GPL(ip6_sk_update_pmtu);
+void ip6_sk_dst_store_flow(struct sock *sk, struct dst_entry *dst,
+ const struct flowi6 *fl6)
+{
+#ifdef CONFIG_IPV6_SUBTREES
+ struct ipv6_pinfo *np = inet6_sk(sk);
+#endif
+
+ ip6_dst_store(sk, dst,
+ ipv6_addr_equal(&fl6->daddr, &sk->sk_v6_daddr) ?
+ &sk->sk_v6_daddr : NULL,
+#ifdef CONFIG_IPV6_SUBTREES
+ ipv6_addr_equal(&fl6->saddr, &np->saddr) ?
+ &np->saddr :
+#endif
+ NULL);
+}
+
/* Handle redirects */
struct ip6rd_flowi {
struct flowi6 fl6;