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/hamradio/bpqether.c b/drivers/net/hamradio/bpqether.c
index 4bf0f19..1f65d1e 100644
--- a/drivers/net/hamradio/bpqether.c
+++ b/drivers/net/hamradio/bpqether.c
@@ -443,7 +443,7 @@
 	return 0;
 }
 
-static struct seq_operations bpq_seqops = {
+static const struct seq_operations bpq_seqops = {
 	.start = bpq_seq_start,
 	.next = bpq_seq_next,
 	.stop = bpq_seq_stop,
diff --git a/drivers/net/hamradio/scc.c b/drivers/net/hamradio/scc.c
index 49f9d24..2acb18f 100644
--- a/drivers/net/hamradio/scc.c
+++ b/drivers/net/hamradio/scc.c
@@ -2074,7 +2074,7 @@
         return 0;
 }
 
-static struct seq_operations scc_net_seq_ops = {
+static const struct seq_operations scc_net_seq_ops = {
 	.start  = scc_net_seq_start,
 	.next   = scc_net_seq_next,
 	.stop   = scc_net_seq_stop,
diff --git a/drivers/net/hamradio/yam.c b/drivers/net/hamradio/yam.c
index e2b0a19..82a8be7 100644
--- a/drivers/net/hamradio/yam.c
+++ b/drivers/net/hamradio/yam.c
@@ -783,7 +783,7 @@
 	return 0;
 }
 
-static struct seq_operations yam_seqops = {
+static const struct seq_operations yam_seqops = {
 	.start = yam_seq_start,
 	.next = yam_seq_next,
 	.stop = yam_seq_stop,