bonding: show NS IPv6 targets in proc master info

When adding bond new parameter ns_targets. I forgot to print this
in bond master proc info. After updating, the bond master info will look
like:

ARP IP target/s (n.n.n.n form): 192.168.1.254
NS IPv6 target/s (XX::XX form): 2022::1, 2022::2

Fixes: 4e24be018eb9 ("bonding: add new parameter ns_targets")
Reported-by: Li Liang <liali@redhat.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://lore.kernel.org/r/20220530062639.37179-1-liuhangbin@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

diff --git a/drivers/net/bonding/bond_procfs.c b/drivers/net/bonding/bond_procfs.c
index cfe37be..43be458 100644 (file)
--- a/drivers/net/bonding/bond_procfs.c
+++ b/drivers/net/bonding/bond_procfs.c
@@ -129,6 +129,21 @@ static void bond_info_show_master(struct seq_file *seq)
                        printed = 1;
                }
                seq_printf(seq, "\n");
+
+#if IS_ENABLED(CONFIG_IPV6)
+               printed = 0;
+               seq_printf(seq, "NS IPv6 target/s (xx::xx form):");
+
+               for (i = 0; (i < BOND_MAX_NS_TARGETS); i++) {
+                       if (ipv6_addr_any(&bond->params.ns_targets[i]))
+                               break;
+                       if (printed)
+                               seq_printf(seq, ",");
+                       seq_printf(seq, " %pI6c", &bond->params.ns_targets[i]);
+                       printed = 1;
+               }
+               seq_printf(seq, "\n");
+#endif
        }
 
        if (BOND_MODE(bond) == BOND_MODE_8023AD) {