Signed-off-by: Phil Sutter <p...@nwl.cc>
---
ip/iplink_bond_slave.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/ip/iplink_bond_slave.c b/ip/iplink_bond_slave.c
index d67793237edfc..9c60dea8a2757 100644
--- a/ip/iplink_bond_slave.c
+++ b/ip/iplink_bond_slave.c
@@ -17,6 +17,16 @@
#include "utils.h"
#include "ip_common.h"
+static void print_explain(FILE *f)
+{
+ fprintf(f, "Usage: ... bond_slave [ queue_id ID ]\n");
+}
+
+static void explain(void)
+{
+ print_explain(stderr);
+}
+
static const char *slave_states[] = {
[BOND_STATE_ACTIVE] = "ACTIVE",
[BOND_STATE_BACKUP] = "BACKUP",
@@ -99,6 +109,13 @@ static int bond_slave_parse_opt(struct link_util *lu, int
argc, char **argv,
if (get_u16(&queue_id, *argv, 0))
invarg("queue_id is invalid", *argv);
addattr16(n, 1024, IFLA_BOND_SLAVE_QUEUE_ID, queue_id);
+ } else {
+ if (matches(*argv, "help") != 0)
+ fprintf(stderr,
+ "bond_slave: unknown option \"%s\"?\n",
+ *argv);
+ explain();
+ return -1;
}
argc--, argv++;
}
@@ -106,10 +123,17 @@ static int bond_slave_parse_opt(struct link_util *lu, int
argc, char **argv,
return 0;
}
+static void bond_slave_print_help(struct link_util *lu, int argc, char **argv,
+ FILE *f)
+{
+ print_explain(f);
+}
+
struct link_util bond_slave_link_util = {
.id = "bond",
.maxattr = IFLA_BOND_SLAVE_MAX,
.print_opt = bond_slave_print_opt,
.parse_opt = bond_slave_parse_opt,
+ .print_help = bond_slave_print_help,
.slave = true,
};
--
2.8.2
