[MAC80211]: remove turbo modes

This patch removes all mention of the atheros turbo modes that
can't possibly work properly anyway since in some places we don't
check for them when we should.

I have no idea what the iwlwifi drivers were doing with these but
it can't possibly have been correct.

Cc: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Michael Wu <flamingice@sourmilk.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 54 insertions, 9 deletions

diff --git a/net/mac80211/ieee80211_ioctl.c b/net/mac80211/ieee80211_ioctl.c
index 10ec056..e1c4502 100644
--- a/net/mac80211/ieee80211_ioctl.c
+++ b/net/mac80211/ieee80211_ioctl.c
@@ -26,6 +26,41 @@
 #include "wpa.h"
 #include "aes_ccm.h"
 
+
+/*
+ * Wow. This ioctl interface is such crap, it's tied
+ * to internal definitions. I hope it dies soon.
+ */
+static int mode_to_hostapd_mode(enum ieee80211_phymode mode)
+{
+	switch (mode) {
+	case MODE_IEEE80211A:
+		return 0;
+	case MODE_IEEE80211B:
+		return 1;
+	case MODE_IEEE80211G:
+		return 3;
+	case NUM_IEEE80211_MODES:
+		WARN_ON(1);
+		break;
+	}
+	WARN_ON(1);
+	return -1;
+}
+
+static enum ieee80211_phymode hostapd_mode_to_mode(int hostapd_mode)
+{
+	switch (hostapd_mode) {
+	case 0:
+		return MODE_IEEE80211A;
+	case 1:
+		return MODE_IEEE80211B;
+	case 3:
+		return MODE_IEEE80211G;
+	}
+	return NUM_IEEE80211_MODES;
+}
+
 static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr,
 				    int idx, int alg, int set_tx_key,
 				    const u8 *_key, size_t key_len)
@@ -141,9 +176,6 @@ static int ieee80211_ioctl_giwname(struct net_device *dev,
 	case MODE_IEEE80211G:
 		strcpy(name, "IEEE 802.11g");
 		break;
-	case MODE_ATHEROS_TURBO:
-		strcpy(name, "5GHz Turbo");
-		break;
 	default:
 		strcpy(name, "IEEE 802.11");
 		break;
@@ -594,9 +626,6 @@ static int ieee80211_ioctl_siwrate(struct net_device *dev,
 		struct ieee80211_rate *rates = &mode->rates[i];
 		int this_rate = rates->rate;
 
-		if (mode->mode == MODE_ATHEROS_TURBO ||
-		    mode->mode == MODE_ATHEROS_TURBOG)
-			this_rate *= 2;
 		if (target_rate == this_rate) {
 			sdata->bss->max_ratectrl_rateidx = i;
 			if (rate->fixed)
@@ -786,6 +815,7 @@ static int ieee80211_ioctl_prism2_param(struct net_device *dev,
 	int param = *i;
 	int value = *(i + 1);
 	int ret = 0;
+	int mode;
 
 	if (!capable(CAP_NET_ADMIN))
 		return -EPERM;
@@ -840,7 +870,7 @@ static int ieee80211_ioctl_prism2_param(struct net_device *dev,
 		break;
 
 	case PRISM2_PARAM_NEXT_MODE:
-		local->next_mode = value;
+		local->next_mode = hostapd_mode_to_mode(value);
 		break;
 
 	case PRISM2_PARAM_KEY_TX_RX_THRESHOLD:
@@ -868,7 +898,15 @@ static int ieee80211_ioctl_prism2_param(struct net_device *dev,
 		break;
 
 	case PRISM2_PARAM_HW_MODES:
-		local->enabled_modes = value;
+		mode = 1;
+		local->enabled_modes = 0;
+		while (value) {
+			if (value & 1)
+				local->enabled_modes |=
+					hostapd_mode_to_mode(mode);
+			mode <<= 1;
+			value >>= 1;
+		}
 		break;
 
 	case PRISM2_PARAM_CREATE_IBSS:
@@ -909,6 +947,7 @@ static int ieee80211_ioctl_get_prism2_param(struct net_device *dev,
 	struct ieee80211_sub_if_data *sdata;
 	int *param = (int *) extra;
 	int ret = 0;
+	int mode;
 
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
@@ -946,7 +985,13 @@ static int ieee80211_ioctl_get_prism2_param(struct net_device *dev,
 		break;
 
 	case PRISM2_PARAM_HW_MODES:
-		*param = local->enabled_modes;
+		mode = 0;
+		*param = 0;
+		while (mode < NUM_IEEE80211_MODES) {
+			if (local->enabled_modes & (1<<mode))
+				*param |= mode_to_hostapd_mode(1<<mode);
+			mode++;
+		}
 		break;
 
 	case PRISM2_PARAM_CREATE_IBSS: