Remove duplicate use of RV(), LE_* and other macros.

Submitted by:	Andriy Voskoboinyk <s3erios@gmail.com>
Differential Revision:	https://reviews.freebsd.org/D3705

sys/net80211/ieee80211_mesh.c

@@ -434,13 +434,12 @@ mesh_rt_flush_invalid(struct ieee80211vap *vap)
 	MESH_RT_UNLOCK(ms);
 }
 
-#define	N(a)	(sizeof(a) / sizeof(a[0]))
 int
 ieee80211_mesh_register_proto_path(const struct ieee80211_mesh_proto_path *mpp)
 {
 	int i, firstempty = -1;
 
-	for (i = 0; i < N(mesh_proto_paths); i++) {
+	for (i = 0; i < nitems(mesh_proto_paths); i++) {
 		if (strncmp(mpp->mpp_descr, mesh_proto_paths[i].mpp_descr,
 		    IEEE80211_MESH_PROTO_DSZ) == 0)
 			return EEXIST;
@@ -460,7 +459,7 @@ ieee80211_mesh_register_proto_metric(const struct
 {
 	int i, firstempty = -1;
 
-	for (i = 0; i < N(mesh_proto_metrics); i++) {
+	for (i = 0; i < nitems(mesh_proto_metrics); i++) {
 		if (strncmp(mpm->mpm_descr, mesh_proto_metrics[i].mpm_descr,
 		    IEEE80211_MESH_PROTO_DSZ) == 0)
 			return EEXIST;
@@ -480,7 +479,7 @@ mesh_select_proto_path(struct ieee80211vap *vap, const char *name)
 	struct ieee80211_mesh_state *ms = vap->iv_mesh;
 	int i;
 
-	for (i = 0; i < N(mesh_proto_paths); i++) {
+	for (i = 0; i < nitems(mesh_proto_paths); i++) {
 		if (strcasecmp(mesh_proto_paths[i].mpp_descr, name) == 0) {
 			ms->ms_ppath = &mesh_proto_paths[i];
 			return 0;
@@ -495,7 +494,7 @@ mesh_select_proto_metric(struct ieee80211vap *vap, const char *name)
 	struct ieee80211_mesh_state *ms = vap->iv_mesh;
 	int i;
 
-	for (i = 0; i < N(mesh_proto_metrics); i++) {
+	for (i = 0; i < nitems(mesh_proto_metrics); i++) {
 		if (strcasecmp(mesh_proto_metrics[i].mpm_descr, name) == 0) {
 			ms->ms_pmetric = &mesh_proto_metrics[i];
 			return 0;
@@ -503,7 +502,6 @@ mesh_select_proto_metric(struct ieee80211vap *vap, const char *name)
 	}
 	return ENOENT;
 }
-#undef	N
 
 static void
 mesh_gatemode_setup(struct ieee80211vap *vap)

sys/net80211/ieee80211_proto.c

@@ -491,7 +491,6 @@ int
 ieee80211_fix_rate(struct ieee80211_node *ni,
 	struct ieee80211_rateset *nrs, int flags)
 {
-#define	RV(v)	((v) & IEEE80211_RATE_VAL)
 	struct ieee80211vap *vap = ni->ni_vap;
 	struct ieee80211com *ic = ni->ni_ic;
 	int i, j, rix, error;
@@ -545,7 +544,8 @@ ieee80211_fix_rate(struct ieee80211_node *ni,
 			 * Sort rates.
 			 */
 			for (j = i + 1; j < nrs->rs_nrates; j++) {
-				if (RV(nrs->rs_rates[i]) > RV(nrs->rs_rates[j])) {
+				if (IEEE80211_RV(nrs->rs_rates[i]) >
+				    IEEE80211_RV(nrs->rs_rates[j])) {
 					r = nrs->rs_rates[i];
 					nrs->rs_rates[i] = nrs->rs_rates[j];
 					nrs->rs_rates[j] = r;
@@ -604,8 +604,7 @@ ieee80211_fix_rate(struct ieee80211_node *ni,
 		    "ucastrate %x\n", __func__, fixedrate, ucastrate, flags);
 		return badrate | IEEE80211_RATE_BASIC;
 	} else
-		return RV(okrate);
+		return IEEE80211_RV(okrate);
-#undef RV
 }
 
 /*

sys/net80211/ieee80211_scan_sta.c

@@ -737,12 +737,6 @@ sta_cancel(struct ieee80211_scan_state *ss, struct ieee80211vap *vap)
 	return 0;
 }
 
-/* unaligned little endian access */     
-#define LE_READ_2(p)					\
-	((uint16_t)					\
-	 ((((const uint8_t *)(p))[0]      ) |		\
-	  (((const uint8_t *)(p))[1] <<  8)))
- 
 /*
  * Demote any supplied 11g channel to 11b.  There should
  * always be an 11b channel but we check anyway...
@@ -876,7 +870,6 @@ static int
 check_rate(struct ieee80211vap *vap, const struct ieee80211_channel *chan,
     const struct ieee80211_scan_entry *se)
 {
-#define	RV(v)	((v) & IEEE80211_RATE_VAL)
 	const struct ieee80211_rateset *srs;
 	int i, j, nrs, r, okrate, badrate, fixedrate, ucastrate;
 	const uint8_t *rs;
@@ -891,7 +884,7 @@ check_rate(struct ieee80211vap *vap, const struct ieee80211_channel *chan,
 	fixedrate = IEEE80211_FIXED_RATE_NONE;
 again:
 	for (i = 0; i < nrs; i++) {
-		r = RV(rs[i]);
+		r = IEEE80211_RV(rs[i]);
 		badrate = r;
 		/*
 		 * Check any fixed rate is included. 
@@ -902,7 +895,7 @@ again:
 		 * Check against our supported rates.
 		 */
 		for (j = 0; j < srs->rs_nrates; j++)
-			if (r == RV(srs->rs_rates[j])) {
+			if (r == IEEE80211_RV(srs->rs_rates[j])) {
 				if (r > okrate)		/* NB: track max */
 					okrate = r;
 				break;
@@ -928,8 +921,7 @@ back:
 	if (okrate == 0 || ucastrate != fixedrate)
 		return badrate | IEEE80211_RATE_BASIC;
 	else
-		return RV(okrate);
+		return IEEE80211_RV(okrate);
-#undef RV
 }
 
 static __inline int