[PATCH iproute2 1/2] tc: ct: Fix ct commit nat forcing addr

[Roi Dayan <roid@nvidia.com>]

Action ct commit should accept nat src/dst without an addr. Fix it.

Fixes: c8a494314c40 ("tc: Introduce tc ct action")
Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Paul Blakey <paulb@nvidia.com>
---
 man/man8/tc-ct.8 | 2 +-
 tc/m_ct.c        | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/man/man8/tc-ct.8 b/man/man8/tc-ct.8
index 2fb81ca29aa4..78d05e430c36 100644
--- a/man/man8/tc-ct.8
+++ b/man/man8/tc-ct.8
@@ -47,7 +47,7 @@ Specify a masked 32bit mark to set for the connection (only valid with commit).
 Specify a masked 128bit label to set for the connection (only valid with commit).
 .TP
 .BI nat " NAT_SPEC"
-.BI Where " NAT_SPEC " ":= {src|dst} addr" " addr1" "[-" "addr2" "] [port " "port1" "[-" "port2" "]]"
+.BI Where " NAT_SPEC " ":= {src|dst} [addr" " addr1" "[-" "addr2" "] [port " "port1" "[-" "port2" "]]]"
 
 Specify src/dst and range of nat to configure for the connection (only valid with commit).
 .RS
diff --git a/tc/m_ct.c b/tc/m_ct.c
index a02bf0cc1655..1b8984075a67 100644
--- a/tc/m_ct.c
+++ b/tc/m_ct.c
@@ -23,7 +23,7 @@ usage(void)
 		"	ct commit [force] [zone ZONE] [mark MASKED_MARK] [label MASKED_LABEL] [nat NAT_SPEC]\n"
 		"	ct [nat] [zone ZONE]\n"
 		"Where: ZONE is the conntrack zone table number\n"
-		"	NAT_SPEC is {src|dst} addr addr1[-addr2] [port port1[-port2]]\n"
+		"	NAT_SPEC is {src|dst} [addr addr1[-addr2] [port port1[-port2]]]\n"
 		"\n");
 	exit(-1);
 }
@@ -234,7 +234,7 @@ parse_ct(struct action_util *a, int *argc_p, char ***argv_p, int tca_id,
 
 			NEXT_ARG();
 			if (matches(*argv, "addr") != 0)
-				usage();
+				continue;
 
 			NEXT_ARG();
 			ret = ct_parse_nat_addr_range(*argv, n);
-- 
2.38.0