[PATCH] Remove duplicated code from ipw2200.c

As stated in a comment, the ipw2200 driver uses several routines that
were borrowed from ieee80211_geo.c. As ipw2200 requires ieee80211,
these routines are duplicated. The attached patch, which is sent
as an attachment to preserve whitespace, converts ipw2200.c to use
the ieee80211 versions, thereby reducing bloat in both the source
and binary.
Signed-Off-By: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ipw2200.c

@@ -153,12 +153,6 @@ static int init_supported_rates(struct ipw_priv *priv,
 static void ipw_set_hwcrypto_keys(struct ipw_priv *);
 static void ipw_send_wep_keys(struct ipw_priv *, int);
 
-static int ipw_is_valid_channel(struct ieee80211_device *, u8);
-static int ipw_channel_to_index(struct ieee80211_device *, u8);
-static u8 ipw_freq_to_channel(struct ieee80211_device *, u32);
-static int ipw_set_geo(struct ieee80211_device *, const struct ieee80211_geo *);
-static const struct ieee80211_geo *ipw_get_geo(struct ieee80211_device *);
-
 static int snprint_line(char *buf, size_t count,
 			const u8 * data, u32 len, u32 ofs)
 {
@@ -1654,7 +1648,7 @@ static ssize_t store_speed_scan(struct device *d, struct device_attribute *attr,
 			break;
 		}
 
-		if (ipw_is_valid_channel(priv->ieee, channel))
+		if (ieee80211_is_valid_channel(priv->ieee, channel))
 			priv->speed_scan[pos++] = channel;
 		else
 			IPW_WARNING("Skipping invalid channel request: %d\n",
@@ -2222,7 +2216,7 @@ static int ipw_send_tx_power(struct ipw_priv *priv, struct ipw_tx_power *power)
 
 static int ipw_set_tx_power(struct ipw_priv *priv)
 {
-	const struct ieee80211_geo *geo = ipw_get_geo(priv->ieee);
+	const struct ieee80211_geo *geo = ieee80211_get_geo(priv->ieee);
 	struct ipw_tx_power tx_power;
 	s8 max_power;
 	int i;
@@ -5562,7 +5556,7 @@ static int ipw_best_network(struct ipw_priv *priv,
 	}
 
 	/* Filter out invalid channel in current GEO */
-	if (!ipw_is_valid_channel(priv->ieee, network->channel)) {
+	if (!ieee80211_is_valid_channel(priv->ieee, network->channel)) {
 		IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
 				"because of invalid channel in current GEO\n",
 				escape_essid(network->ssid, network->ssid_len),
@@ -5607,7 +5601,7 @@ static int ipw_best_network(struct ipw_priv *priv,
 static void ipw_adhoc_create(struct ipw_priv *priv,
 			     struct ieee80211_network *network)
 {
-	const struct ieee80211_geo *geo = ipw_get_geo(priv->ieee);
+	const struct ieee80211_geo *geo = ieee80211_get_geo(priv->ieee);
 	int i;
 
 	/*
@@ -5622,10 +5616,10 @@ static void ipw_adhoc_create(struct ipw_priv *priv,
 	 * FW fatal error.
 	 *
 	 */
-	switch (ipw_is_valid_channel(priv->ieee, priv->channel)) {
+	switch (ieee80211_is_valid_channel(priv->ieee, priv->channel)) {
 	case IEEE80211_52GHZ_BAND:
 		network->mode = IEEE_A;
-		i = ipw_channel_to_index(priv->ieee, priv->channel);
+		i = ieee80211_channel_to_index(priv->ieee, priv->channel);
 		if (i == -1)
 			BUG();
 		if (geo->a[i].flags & IEEE80211_CH_PASSIVE_ONLY) {
@@ -5639,7 +5633,7 @@ static void ipw_adhoc_create(struct ipw_priv *priv,
 			network->mode = IEEE_G;
 		else
 			network->mode = IEEE_B;
-		i = ipw_channel_to_index(priv->ieee, priv->channel);
+		i = ieee80211_channel_to_index(priv->ieee, priv->channel);
 		if (i == -1)
 			BUG();
 		if (geo->bg[i].flags & IEEE80211_CH_PASSIVE_ONLY) {
@@ -5963,7 +5957,7 @@ static void ipw_add_scan_channels(struct ipw_priv *priv,
 	const struct ieee80211_geo *geo;
 	int i;
 
-	geo = ipw_get_geo(priv->ieee);
+	geo = ieee80211_get_geo(priv->ieee);
 
 	if (priv->ieee->freq_band & IEEE80211_52GHZ_BAND) {
 		int start = channel_index;
@@ -6023,7 +6017,7 @@ static void ipw_add_scan_channels(struct ipw_priv *priv,
 				channel_index++;
 				scan->channels_list[channel_index] = channel;
 				index =
-				    ipw_channel_to_index(priv->ieee, channel);
+				    ieee80211_channel_to_index(priv->ieee, channel);
 				ipw_set_scan_type(scan, channel_index,
 						  geo->bg[index].
 						  flags &
@@ -6105,7 +6099,7 @@ static int ipw_request_scan(struct ipw_priv *priv)
 		u8 channel;
 		u8 band = 0;
 
-		switch (ipw_is_valid_channel(priv->ieee, priv->channel)) {
+		switch (ieee80211_is_valid_channel(priv->ieee, priv->channel)) {
 		case IEEE80211_52GHZ_BAND:
 			band = (u8) (IPW_A_MODE << 6) | 1;
 			channel = priv->channel;
@@ -8200,7 +8194,7 @@ static int ipw_wx_set_freq(struct net_device *dev,
 			   union iwreq_data *wrqu, char *extra)
 {
 	struct ipw_priv *priv = ieee80211_priv(dev);
-	const struct ieee80211_geo *geo = ipw_get_geo(priv->ieee);
+	const struct ieee80211_geo *geo = ieee80211_get_geo(priv->ieee);
 	struct iw_freq *fwrq = &wrqu->freq;
 	int ret = 0, i;
 	u8 channel, flags;
@@ -8215,17 +8209,17 @@ static int ipw_wx_set_freq(struct net_device *dev,
 	}
 	/* if setting by freq convert to channel */
 	if (fwrq->e == 1) {
-		channel = ipw_freq_to_channel(priv->ieee, fwrq->m);
+		channel = ieee80211_freq_to_channel(priv->ieee, fwrq->m);
 		if (channel == 0)
 			return -EINVAL;
 	} else
 		channel = fwrq->m;
 
-	if (!(band = ipw_is_valid_channel(priv->ieee, channel)))
+	if (!(band = ieee80211_is_valid_channel(priv->ieee, channel)))
 		return -EINVAL;
 
 	if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
-		i = ipw_channel_to_index(priv->ieee, channel);
+		i = ieee80211_channel_to_index(priv->ieee, channel);
 		if (i == -1)
 			return -EINVAL;
 
@@ -8353,7 +8347,7 @@ static int ipw_wx_get_range(struct net_device *dev,
 {
 	struct ipw_priv *priv = ieee80211_priv(dev);
 	struct iw_range *range = (struct iw_range *)extra;
-	const struct ieee80211_geo *geo = ipw_get_geo(priv->ieee);
+	const struct ieee80211_geo *geo = ieee80211_get_geo(priv->ieee);
 	int i = 0, j;
 
 	wrqu->data.length = sizeof(*range);
@@ -10617,96 +10611,6 @@ static const struct ieee80211_geo ipw_geos[] = {
 	 }
 };
 
-/* GEO code borrowed from ieee80211_geo.c */
-static int ipw_is_valid_channel(struct ieee80211_device *ieee, u8 channel)
-{
-	int i;
-
-	/* Driver needs to initialize the geography map before using
-	 * these helper functions */
-	BUG_ON(ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0);
-
-	if (ieee->freq_band & IEEE80211_24GHZ_BAND)
-		for (i = 0; i < ieee->geo.bg_channels; i++)
-			/* NOTE: If G mode is currently supported but
-			 * this is a B only channel, we don't see it
-			 * as valid. */
-			if ((ieee->geo.bg[i].channel == channel) &&
-			    (!(ieee->mode & IEEE_G) ||
-			     !(ieee->geo.bg[i].flags & IEEE80211_CH_B_ONLY)))
-				return IEEE80211_24GHZ_BAND;
-
-	if (ieee->freq_band & IEEE80211_52GHZ_BAND)
-		for (i = 0; i < ieee->geo.a_channels; i++)
-			if (ieee->geo.a[i].channel == channel)
-				return IEEE80211_52GHZ_BAND;
-
-	return 0;
-}
-
-static int ipw_channel_to_index(struct ieee80211_device *ieee, u8 channel)
-{
-	int i;
-
-	/* Driver needs to initialize the geography map before using
-	 * these helper functions */
-	BUG_ON(ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0);
-
-	if (ieee->freq_band & IEEE80211_24GHZ_BAND)
-		for (i = 0; i < ieee->geo.bg_channels; i++)
-			if (ieee->geo.bg[i].channel == channel)
-				return i;
-
-	if (ieee->freq_band & IEEE80211_52GHZ_BAND)
-		for (i = 0; i < ieee->geo.a_channels; i++)
-			if (ieee->geo.a[i].channel == channel)
-				return i;
-
-	return -1;
-}
-
-static u8 ipw_freq_to_channel(struct ieee80211_device *ieee, u32 freq)
-{
-	int i;
-
-	/* Driver needs to initialize the geography map before using
-	 * these helper functions */
-	BUG_ON(ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0);
-
-	freq /= 100000;
-
-	if (ieee->freq_band & IEEE80211_24GHZ_BAND)
-		for (i = 0; i < ieee->geo.bg_channels; i++)
-			if (ieee->geo.bg[i].freq == freq)
-				return ieee->geo.bg[i].channel;
-
-	if (ieee->freq_band & IEEE80211_52GHZ_BAND)
-		for (i = 0; i < ieee->geo.a_channels; i++)
-			if (ieee->geo.a[i].freq == freq)
-				return ieee->geo.a[i].channel;
-
-	return 0;
-}
-
-static int ipw_set_geo(struct ieee80211_device *ieee,
-		       const struct ieee80211_geo *geo)
-{
-	memcpy(ieee->geo.name, geo->name, 3);
-	ieee->geo.name[3] = '\0';
-	ieee->geo.bg_channels = geo->bg_channels;
-	ieee->geo.a_channels = geo->a_channels;
-	memcpy(ieee->geo.bg, geo->bg, geo->bg_channels *
-	       sizeof(struct ieee80211_channel));
-	memcpy(ieee->geo.a, geo->a, ieee->geo.a_channels *
-	       sizeof(struct ieee80211_channel));
-	return 0;
-}
-
-static const struct ieee80211_geo *ipw_get_geo(struct ieee80211_device *ieee)
-{
-	return &ieee->geo;
-}
-
 #define MAX_HW_RESTARTS 5
 static int ipw_up(struct ipw_priv *priv)
 {
@@ -10753,7 +10657,7 @@ static int ipw_up(struct ipw_priv *priv)
 				    priv->eeprom[EEPROM_COUNTRY_CODE + 2]);
 			j = 0;
 		}
-		if (ipw_set_geo(priv->ieee, &ipw_geos[j])) {
+		if (ieee80211_set_geo(priv->ieee, &ipw_geos[j])) {
 			IPW_WARNING("Could not set geography.");
 			return 0;
 		}