X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=net%2Fieee80211%2Fieee80211_geo.c;h=960ad13f5e9f41fc724aff31ee842dcaaf4a5e23;hb=458622fcdc5b316de8d74efd7e610803f0308c14;hp=3027153940fcb48e99ed3fc0311bc9632165969f;hpb=70c07e02625ec46d0ffbfce1acef42d660803528;p=linux-2.6-omap-h63xx.git

diff --git a/net/ieee80211/ieee80211_geo.c b/net/ieee80211/ieee80211_geo.c
index 3027153940f..960ad13f5e9 100644
--- a/net/ieee80211/ieee80211_geo.c
+++ b/net/ieee80211/ieee80211_geo.c
@@ -24,7 +24,6 @@
 
 ******************************************************************************/
 #include <linux/compiler.h>
-#include <linux/config.h>
 #include <linux/errno.h>
 #include <linux/if_arp.h>
 #include <linux/in6.h>
@@ -50,7 +49,8 @@ int ieee80211_is_valid_channel(struct ieee80211_device *ieee, u8 channel)
 
 	/* 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->geo.bg_channels == 0 && ieee->geo.a_channels == 0)
+		return 0;
 
 	if (ieee->freq_band & IEEE80211_24GHZ_BAND)
 		for (i = 0; i < ieee->geo.bg_channels; i++)
@@ -78,7 +78,8 @@ int ieee80211_channel_to_index(struct ieee80211_device *ieee, u8 channel)
 
 	/* 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->geo.bg_channels == 0 && ieee->geo.a_channels == 0)
+		return -1;
 
 	if (ieee->freq_band & IEEE80211_24GHZ_BAND)
 		for (i = 0; i < ieee->geo.bg_channels; i++)
@@ -93,13 +94,29 @@ int ieee80211_channel_to_index(struct ieee80211_device *ieee, u8 channel)
 	return -1;
 }
 
+u32 ieee80211_channel_to_freq(struct ieee80211_device * ieee, u8 channel)
+{
+	const struct ieee80211_channel * ch;
+
+	/* Driver needs to initialize the geography map before using
+	 * these helper functions */
+	if (ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0)
+		return 0;
+
+	ch = ieee80211_get_channel(ieee, channel);
+	if (!ch->channel)
+		return 0;
+	return ch->freq;
+}
+
 u8 ieee80211_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);
+	if (ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0)
+		return 0;
 
 	freq /= 100000;
 
@@ -172,6 +189,7 @@ EXPORT_SYMBOL(ieee80211_get_channel);
 EXPORT_SYMBOL(ieee80211_get_channel_flags);
 EXPORT_SYMBOL(ieee80211_is_valid_channel);
 EXPORT_SYMBOL(ieee80211_freq_to_channel);
+EXPORT_SYMBOL(ieee80211_channel_to_freq);
 EXPORT_SYMBOL(ieee80211_channel_to_index);
 EXPORT_SYMBOL(ieee80211_set_geo);
 EXPORT_SYMBOL(ieee80211_get_geo);