ath9k: Determine number of streams from HT capabilities
The number of streams supported by a STA can be determined
directly from the HT capabilities. Remove the redundant
variable storing the stream cap.
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath9k/rc.c b/drivers/net/wireless/ath9k/rc.c
index 824ccbb..a6933cc 100644
--- a/drivers/net/wireless/ath9k/rc.c
+++ b/drivers/net/wireless/ath9k/rc.c
@@ -524,7 +524,7 @@
u32 valid;
for (i = 0; i < rate_table->rate_cnt; i++) {
- valid = (ath_rc_priv->single_stream ?
+ valid = (!(ath_rc_priv->ht_cap & WLAN_RC_DS_FLAG) ?
rate_table->info[i].valid_single_stream :
rate_table->info[i].valid);
if (valid == 1) {
@@ -557,9 +557,9 @@
for (i = 0; i < rateset->rs_nrates; i++) {
for (j = 0; j < rate_table->rate_cnt; j++) {
u32 phy = rate_table->info[j].phy;
- u32 valid = (ath_rc_priv->single_stream ?
- rate_table->info[j].valid_single_stream :
- rate_table->info[j].valid);
+ u32 valid = (!(ath_rc_priv->ht_cap & WLAN_RC_DS_FLAG) ?
+ rate_table->info[j].valid_single_stream :
+ rate_table->info[j].valid);
u8 rate = rateset->rs_rates[i];
u8 dot11rate = rate_table->info[j].dot11rate;
@@ -603,7 +603,7 @@
for (i = 0; i < rateset->rs_nrates; i++) {
for (j = 0; j < rate_table->rate_cnt; j++) {
u32 phy = rate_table->info[j].phy;
- u32 valid = (ath_rc_priv->single_stream ?
+ u32 valid = (!(ath_rc_priv->ht_cap & WLAN_RC_DS_FLAG) ?
rate_table->info[j].valid_single_stream :
rate_table->info[j].valid);
u8 rate = rateset->rs_rates[i];
@@ -740,9 +740,10 @@
if (rate > (ath_rc_priv->rate_table_size - 1))
rate = ath_rc_priv->rate_table_size - 1;
- ASSERT((rate_table->info[rate].valid && !ath_rc_priv->single_stream) ||
+ ASSERT((rate_table->info[rate].valid &&
+ (ath_rc_priv->ht_cap & WLAN_RC_DS_FLAG)) ||
(rate_table->info[rate].valid_single_stream &&
- ath_rc_priv->single_stream));
+ !(ath_rc_priv->ht_cap & WLAN_RC_DS_FLAG)));
return rate;
}
@@ -1422,9 +1423,6 @@
}
ath_rc_priv->rc_phy_mode = ath_rc_priv->ht_cap & WLAN_RC_40_FLAG;
- /* Set stream capability */
- ath_rc_priv->single_stream = (ath_rc_priv->ht_cap & WLAN_RC_DS_FLAG) ? 0 : 1;
-
if (!rateset->rs_nrates) {
/* No working rate, just initialize valid rates */
hi = ath_rc_init_validrates(ath_rc_priv, rate_table,