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-rw-r--r--net/rds/transport.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/net/rds/transport.c b/net/rds/transport.c
index 0b188dd0a344..c9788dbce441 100644
--- a/net/rds/transport.c
+++ b/net/rds/transport.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2006 Oracle. All rights reserved.
+ * Copyright (c) 2006, 2017 Oracle and/or its affiliates. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
@@ -33,6 +33,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/in.h>
+#include <linux/ipv6.h>
#include "rds.h"
#include "loop.h"
@@ -75,20 +76,26 @@ void rds_trans_put(struct rds_transport *trans)
module_put(trans->t_owner);
}
-struct rds_transport *rds_trans_get_preferred(struct net *net, __be32 addr)
+struct rds_transport *rds_trans_get_preferred(struct net *net,
+ const struct in6_addr *addr,
+ __u32 scope_id)
{
struct rds_transport *ret = NULL;
struct rds_transport *trans;
unsigned int i;
- if (IN_LOOPBACK(ntohl(addr)))
+ if (ipv6_addr_v4mapped(addr)) {
+ if (*(u_int8_t *)&addr->s6_addr32[3] == IN_LOOPBACKNET)
+ return &rds_loop_transport;
+ } else if (ipv6_addr_loopback(addr)) {
return &rds_loop_transport;
+ }
down_read(&rds_trans_sem);
for (i = 0; i < RDS_TRANS_COUNT; i++) {
trans = transports[i];
- if (trans && (trans->laddr_check(net, addr) == 0) &&
+ if (trans && (trans->laddr_check(net, addr, scope_id) == 0) &&
(!trans->t_owner || try_module_get(trans->t_owner))) {
ret = trans;
break;