staging: wfx: make hif_ie_table_entry const

In wfx_update_filtering(), filter_ies is never modified. So, make it
constant.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200406111756.154086-11-Jerome.Pouiller@silabs.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wfx/hif_tx_mib.c

@@ -102,8 +102,8 @@ int hif_set_rx_filter(struct wfx_vif *wvif,
 			     &val, sizeof(val));
 }
 
-int hif_set_beacon_filter_table(struct wfx_vif *wvif,
-				int tbl_len, struct hif_ie_table_entry *tbl)
+int hif_set_beacon_filter_table(struct wfx_vif *wvif, int tbl_len,
+				const struct hif_ie_table_entry *tbl)
 {
 	int ret;
 	struct hif_mib_bcn_filter_table *val;

drivers/staging/wfx/hif_tx_mib.h

@@ -25,8 +25,8 @@ int hif_get_counters_table(struct wfx_dev *wdev,
 int hif_set_macaddr(struct wfx_vif *wvif, u8 *mac);
 int hif_set_rx_filter(struct wfx_vif *wvif,
 		      bool filter_bssid, bool fwd_probe_req);
-int hif_set_beacon_filter_table(struct wfx_vif *wvif,
-				int tbl_len, struct hif_ie_table_entry *tbl);
+int hif_set_beacon_filter_table(struct wfx_vif *wvif, int tbl_len,
+				const struct hif_ie_table_entry *tbl);
 int hif_beacon_filter_control(struct wfx_vif *wvif,
 			      int enable, int beacon_count);
 int hif_set_operational_mode(struct wfx_dev *wdev, enum hif_op_power_mode mode);

drivers/staging/wfx/sta.c

@@ -148,7 +148,7 @@ void wfx_update_filtering(struct wfx_vif *wvif)
 	int bf_enable;
 	int bf_count;
 	int n_filter_ies;
-	struct hif_ie_table_entry filter_ies[] = {
+	const struct hif_ie_table_entry filter_ies[] = {
 		{
 			.ie_id        = WLAN_EID_VENDOR_SPECIFIC,
 			.has_changed  = 1,