wireless: move ieee80211chan2mhz macro

The macro is only used in ipw2200 and we certainly
don't want to encourage its use, so move it out of
the radiotap header file and into the driver.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/net/wireless/ipw2x00/ipw2200.c b/drivers/net/wireless/ipw2x00/ipw2200.c
index 99a710dfe771..99575884ff52 100644
--- a/drivers/net/wireless/ipw2x00/ipw2200.c
+++ b/drivers/net/wireless/ipw2x00/ipw2200.c
@@ -131,6 +131,14 @@ static struct ieee80211_rate ipw2200_rates[] = {
 #define ipw2200_bg_rates        (ipw2200_rates + 0)
 #define ipw2200_num_bg_rates    12
 
+/* Ugly macro to convert literal channel numbers into their mhz equivalents
+ * There are certianly some conditions that will break this (like feeding it '30')
+ * but they shouldn't arise since nothing talks on channel 30. */
+#define ieee80211chan2mhz(x) \
+        (((x) <= 14) ? \
+        (((x) == 14) ? 2484 : ((x) * 5) + 2407) : \
+        ((x) + 1000) * 5)
+
 #ifdef CONFIG_IPW2200_QOS
 static int qos_enable = 0;
 static int qos_burst_enable = 0;