llc: Make llc_sap_action_t function pointer arrays const

It's better when function pointer arrays aren't modifiable.

Net change:

$ size net/llc/built-in.o.*
   text	   data	    bss	    dec	    hex	filename
  61193	  12758	   1344	  75295	  1261f	net/llc/built-in.o.new
  47113	  27030	   1344	  75487	  126df	net/llc/built-in.o.old
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/llc_s_st.h

@@ -19,7 +19,7 @@
 struct llc_sap_state_trans {
 	llc_sap_ev_t	  ev;
 	u8		  next_state;
-	llc_sap_action_t *ev_actions;
+	const llc_sap_action_t *ev_actions;
 };
 
 struct llc_sap_state {

net/llc/llc_s_st.c

@@ -29,7 +29,7 @@ static struct llc_sap_state_trans llc_sap_state_trans_end;
 /* state LLC_SAP_STATE_INACTIVE transition for
  * LLC_SAP_EV_ACTIVATION_REQ event
  */
-static llc_sap_action_t llc_sap_inactive_state_actions_1[] = {
+static const llc_sap_action_t llc_sap_inactive_state_actions_1[] = {
 	[0] = llc_sap_action_report_status,
 	[1] = NULL,
 };
@@ -47,7 +47,7 @@ static struct llc_sap_state_trans *llc_sap_inactive_state_transitions[] = {
 };
 
 /* state LLC_SAP_STATE_ACTIVE transition for LLC_SAP_EV_RX_UI event */
-static llc_sap_action_t llc_sap_active_state_actions_1[] = {
+static const llc_sap_action_t llc_sap_active_state_actions_1[] = {
 	[0] = llc_sap_action_unitdata_ind,
 	[1] = NULL,
 };
@@ -59,7 +59,7 @@ static struct llc_sap_state_trans llc_sap_active_state_trans_1 = {
 };
 
 /* state LLC_SAP_STATE_ACTIVE transition for LLC_SAP_EV_UNITDATA_REQ event */
-static llc_sap_action_t llc_sap_active_state_actions_2[] = {
+static const llc_sap_action_t llc_sap_active_state_actions_2[] = {
 	[0] = llc_sap_action_send_ui,
 	[1] = NULL,
 };
@@ -71,7 +71,7 @@ static struct llc_sap_state_trans llc_sap_active_state_trans_2 = {
 };
 
 /* state LLC_SAP_STATE_ACTIVE transition for LLC_SAP_EV_XID_REQ event */
-static llc_sap_action_t llc_sap_active_state_actions_3[] = {
+static const llc_sap_action_t llc_sap_active_state_actions_3[] = {
 	[0] = llc_sap_action_send_xid_c,
 	[1] = NULL,
 };
@@ -83,7 +83,7 @@ static struct llc_sap_state_trans llc_sap_active_state_trans_3 = {
 };
 
 /* state LLC_SAP_STATE_ACTIVE transition for LLC_SAP_EV_RX_XID_C event */
-static llc_sap_action_t llc_sap_active_state_actions_4[] = {
+static const llc_sap_action_t llc_sap_active_state_actions_4[] = {
 	[0] = llc_sap_action_send_xid_r,
 	[1] = NULL,
 };
@@ -95,7 +95,7 @@ static struct llc_sap_state_trans llc_sap_active_state_trans_4 = {
 };
 
 /* state LLC_SAP_STATE_ACTIVE transition for LLC_SAP_EV_RX_XID_R event */
-static llc_sap_action_t llc_sap_active_state_actions_5[] = {
+static const llc_sap_action_t llc_sap_active_state_actions_5[] = {
 	[0] = llc_sap_action_xid_ind,
 	[1] = NULL,
 };
@@ -107,7 +107,7 @@ static struct llc_sap_state_trans llc_sap_active_state_trans_5 = {
 };
 
 /* state LLC_SAP_STATE_ACTIVE transition for LLC_SAP_EV_TEST_REQ event */
-static llc_sap_action_t llc_sap_active_state_actions_6[] = {
+static const llc_sap_action_t llc_sap_active_state_actions_6[] = {
 	[0] = llc_sap_action_send_test_c,
 	[1] = NULL,
 };
@@ -119,7 +119,7 @@ static struct llc_sap_state_trans llc_sap_active_state_trans_6 = {
 };
 
 /* state LLC_SAP_STATE_ACTIVE transition for LLC_SAP_EV_RX_TEST_C event */
-static llc_sap_action_t llc_sap_active_state_actions_7[] = {
+static const llc_sap_action_t llc_sap_active_state_actions_7[] = {
 	[0] = llc_sap_action_send_test_r,
 	[1] = NULL,
 };
@@ -131,7 +131,7 @@ static struct llc_sap_state_trans llc_sap_active_state_trans_7 = {
 };
 
 /* state LLC_SAP_STATE_ACTIVE transition for LLC_SAP_EV_RX_TEST_R event */
-static llc_sap_action_t llc_sap_active_state_actions_8[] = {
+static const llc_sap_action_t llc_sap_active_state_actions_8[] = {
 	[0] = llc_sap_action_test_ind,
 	[1] = NULL,
 };
@@ -145,7 +145,7 @@ static struct llc_sap_state_trans llc_sap_active_state_trans_8 = {
 /* state LLC_SAP_STATE_ACTIVE transition for
  * LLC_SAP_EV_DEACTIVATION_REQ event
  */
-static llc_sap_action_t llc_sap_active_state_actions_9[] = {
+static const llc_sap_action_t llc_sap_active_state_actions_9[] = {
 	[0] = llc_sap_action_report_status,
 	[1] = NULL,
 };

net/llc/llc_sap.c

@@ -146,7 +146,7 @@ static int llc_exec_sap_trans_actions(struct llc_sap *sap,
 				      struct sk_buff *skb)
 {
 	int rc = 0;
-	llc_sap_action_t *next_action = trans->ev_actions;
+	const llc_sap_action_t *next_action = trans->ev_actions;
 
 	for (; next_action && *next_action; next_action++)
 		if ((*next_action)(sap, skb))