Fix or supress various sparse warnings

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

src/ap/taxonomy.c

@@ -21,6 +21,7 @@
 #include "common/wpa_ctrl.h"
 #include "hostapd.h"
 #include "sta_info.h"
+#include "taxonomy.h"
 
 
 /* Copy a string with no funny schtuff allowed; only alphanumerics. */

src/fst/fst_iface.h

@@ -106,7 +106,7 @@ static inline void fst_iface_update_mb_ie(struct fst_iface *i,
 					  const u8 *addr,
 					  const u8 *buf, size_t size)
 {
-	return i->iface_obj.update_mb_ie(i->iface_obj.ctx, addr, buf, size);
+	i->iface_obj.update_mb_ie(i->iface_obj.ctx, addr, buf, size);
 }
 
 static inline const u8 * fst_iface_get_peer_first(struct fst_iface *i,

src/rsn_supp/tdls.c

@@ -1201,9 +1201,10 @@ skip_ies:
 
 #ifdef CONFIG_TDLS_TESTING
 	if (tdls_testing & TDLS_TESTING_DIFF_BSSID) {
+		struct wpa_tdls_lnkid *l = (struct wpa_tdls_lnkid *) pos;
+
 		wpa_printf(MSG_DEBUG, "TDLS: Testing - use incorrect BSSID in "
 			   "Link Identifier");
-		struct wpa_tdls_lnkid *l = (struct wpa_tdls_lnkid *) pos;
 		wpa_tdls_linkid(sm, peer, l);
 		l->bssid[5] ^= 0x01;
 		pos += sizeof(*l);

wpa_supplicant/rrm.c

@@ -633,8 +633,8 @@ static int * wpas_beacon_request_freqs(struct wpa_supplicant *wpa_s,
 }
 
 
-int wpas_get_op_chan_phy(int freq, const u8 *ies, size_t ies_len,
-			 u8 *op_class, u8 *chan, u8 *phy_type)
+static int wpas_get_op_chan_phy(int freq, const u8 *ies, size_t ies_len,
+				u8 *op_class, u8 *chan, u8 *phy_type)
 {
 	const u8 *ie;
 	int sec_chan = 0, vht = 0;

wpa_supplicant/wpa_supplicant.c

@@ -3769,8 +3769,11 @@ static int wpa_set_htcap_mcs(struct wpa_supplicant *wpa_s,
 	wpa_msg(wpa_s, MSG_DEBUG, "set_htcap, ht_mcs -:%s:-", ht_mcs);
 
 	for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
+		long v;
+
 		errno = 0;
-		long v = strtol(tmp, &end, 16);
+		v = strtol(tmp, &end, 16);
+
 		if (errno == 0) {
 			wpa_msg(wpa_s, MSG_DEBUG,
 				"htcap value[%i]: %ld end: %p  tmp: %p",