net: constify VFTs

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 9fb3883..21bce2c 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -3369,7 +3369,7 @@
 	return 0;
 }
 
-static struct seq_operations bond_info_seq_ops = {
+static const struct seq_operations bond_info_seq_ops = {
 	.start = bond_info_seq_start,
 	.next  = bond_info_seq_next,
 	.stop  = bond_info_seq_stop,