erspan: add erspan usage description

The patch adds erspan usage description, so 'ip link help erspan'
and 'ip link help ip6erspan' shows the options.

Signed-off-by: William Tu <u9012063@gmail.com>
Signed-off-by: David Ahern <dsahern@gmail.com>

diff --git a/ip/link_gre.c b/ip/link_gre.c
index 0b9c71baebafe0303f972dee34ba4d4d817830ce..65ad8bad4b825642706cf5d58c601cece81ecc41 100644 (file)
--- a/ip/link_gre.c
+++ b/ip/link_gre.c
@@ -44,7 +44,11 @@ static void print_usage(FILE *f)
                "                            [ [no]encap-csum6 ]\n"
                "                            [ [no]encap-remcsum ]\n"
                "                            [ fwmark MARK ]\n"
+               "                            [ erspan_ver version ]\n"
                "                            [ erspan IDX ]\n"
+               "                            [ erspan_dir { ingress | egress } ]\n"
+               "                            [ erspan_hwid hwid ]\n"
+               "                            [ external ]\n"
                "\n"
                "Where: ADDR := { IP_ADDRESS | any }\n"
                "       TOS  := { NUMBER | inherit }\n"

diff --git a/ip/link_gre6.c b/ip/link_gre6.c
index e4a8e1f5ee41339575f01b1d3f2ec82badc13c73..cb621806261c7dd7f7b9f69f397a7ce0f4f30c4c 100644 (file)
--- a/ip/link_gre6.c
+++ b/ip/link_gre6.c
@@ -52,7 +52,11 @@ static void print_usage(FILE *f)
                "                                  [ [no]encap-csum ]\n"
                "                                  [ [no]encap-csum6 ]\n"
                "                                  [ [no]encap-remcsum ]\n"
+               "                                  [ erspan_ver version ]\n"
                "                                  [ erspan IDX ]\n"
+               "                                  [ erspan_dir { ingress | egress } ]\n"
+               "                                  [ erspan_hwid hwid ]\n"
+               "                                  [ external ]\n"
                "\n"
                "Where: ADDR      := IPV6_ADDRESS\n"
                "       TTL       := { 0..255 } (default=%d)\n"