From: Parav Pandit <parav@mellanox.com>
Date: Wed, 5 Sep 2018 12:54:21 +0300
Subject: RDMA/core: Use common code flow for IPv4/6 for addr resolve
Patch-mainline: v4.20-rc1
Git-commit: 783793b5543d3b886f0704803198feeb058cccab
References: bsc#1103992 FATE#326009
Use common code flow for resolving neighbour and for finding source
addresses.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/infiniband/core/addr.c | 32 +++++++++++++++-----------------
1 file changed, 15 insertions(+), 17 deletions(-)
--- a/drivers/infiniband/core/addr.c
+++ b/drivers/infiniband/core/addr.c
@@ -500,8 +500,8 @@ static int addr_resolve(struct sockaddr
bool resolve_neigh,
u32 seq)
{
+ struct dst_entry *dst = NULL;
struct rtable *rt = NULL;
- struct dst_entry *dst;
int ret;
if (!addr->net) {
@@ -510,28 +510,26 @@ static int addr_resolve(struct sockaddr
}
if (src_in->sa_family == AF_INET) {
-
ret = addr4_resolve(src_in, dst_in, addr, &rt);
- if (ret)
- return ret;
-
- ret = rdma_set_src_addr(&rt->dst, dst_in, addr);
- if (!ret && resolve_neigh)
- ret = addr_resolve_neigh(&rt->dst, dst_in, addr, seq);
-
- ip_rt_put(rt);
+ dst = &rt->dst;
} else {
ret = addr6_resolve(src_in, dst_in, addr, &dst);
- if (ret)
- return ret;
+ }
+ if (ret)
+ return ret;
- ret = rdma_set_src_addr(dst, dst_in, addr);
- if (!ret && resolve_neigh)
- ret = addr_resolve_neigh(dst, dst_in, addr, seq);
+ ret = rdma_set_src_addr(dst, dst_in, addr);
+ /*
+ * Resolve neighbor destination address if requested and
+ * only if src addr translation didn't fail.
+ */
+ if (!ret && resolve_neigh)
+ ret = addr_resolve_neigh(dst, dst_in, addr, seq);
+ if (src_in->sa_family == AF_INET)
+ ip_rt_put(rt);
+ else
dst_release(dst);
- }
-
return ret;
}