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authorKa-Cheong Poon <ka-cheong.poon@oracle.com>2018-07-31 07:48:42 +0200
committerDavid S. Miller <davem@davemloft.net>2018-08-01 18:32:35 +0200
commite65d4d96334e3ff4fe0064612a93a51c63de08de (patch)
tree3bbc43d81b1e59665ceae7f412c70be52c29d89c /net/rds/ib_cm.c
parentrds: rds_ib_recv_alloc_cache() should call alloc_percpu_gfp() instead (diff)
downloadlinux-e65d4d96334e3ff4fe0064612a93a51c63de08de.tar.xz
linux-e65d4d96334e3ff4fe0064612a93a51c63de08de.zip
rds: Remove IPv6 dependency
This patch removes the IPv6 dependency from RDS. Signed-off-by: Ka-Cheong Poon <ka-cheong.poon@oracle.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/rds/ib_cm.c')
-rw-r--r--net/rds/ib_cm.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/net/rds/ib_cm.c b/net/rds/ib_cm.c
index 0d654d99fe41..bfbb31f0c7fd 100644
--- a/net/rds/ib_cm.c
+++ b/net/rds/ib_cm.c
@@ -678,6 +678,7 @@ static u32 rds_ib_protocol_compatible(struct rdma_cm_event *event, bool isv6)
return version;
}
+#if IS_ENABLED(CONFIG_IPV6)
/* Given an IPv6 address, find the net_device which hosts that address and
* return its index. This is used by the rds_ib_cm_handle_connect() code to
* find the interface index of where an incoming request comes from when
@@ -704,6 +705,7 @@ static u32 __rds_find_ifindex(struct net *net, const struct in6_addr *addr)
return idx;
}
+#endif
int rds_ib_cm_handle_connect(struct rdma_cm_id *cm_id,
struct rdma_cm_event *event, bool isv6)
@@ -732,6 +734,7 @@ int rds_ib_cm_handle_connect(struct rdma_cm_id *cm_id,
dp = event->param.conn.private_data;
if (isv6) {
+#if IS_ENABLED(CONFIG_IPV6)
dp_cmn = &dp->ricp_v6.dp_cmn;
saddr6 = &dp->ricp_v6.dp_saddr;
daddr6 = &dp->ricp_v6.dp_daddr;
@@ -756,6 +759,10 @@ int rds_ib_cm_handle_connect(struct rdma_cm_id *cm_id,
goto out;
}
}
+#else
+ err = -EOPNOTSUPP;
+ goto out;
+#endif
} else {
dp_cmn = &dp->ricp_v4.dp_cmn;
ipv6_addr_set_v4mapped(dp->ricp_v4.dp_saddr, &s_mapped_addr);
@@ -893,9 +900,11 @@ int rds_ib_conn_path_connect(struct rds_conn_path *cp)
/* XXX I wonder what affect the port space has */
/* delegate cm event handler to rdma_transport */
+#if IS_ENABLED(CONFIG_IPV6)
if (conn->c_isv6)
handler = rds6_rdma_cm_event_handler;
else
+#endif
handler = rds_rdma_cm_event_handler;
ic->i_cm_id = rdma_create_id(&init_net, handler, conn,
RDMA_PS_TCP, IB_QPT_RC);