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authorJohannes Berg <johannes.berg@intel.com>2012-03-08 12:18:04 +0400
committerWey-Yi Guy <wey-yi.w.guy@intel.com>2012-04-13 01:18:19 +0400
commit3ac40edadcb7799391452ffaa1745084c3e4c747 (patch)
treea59ead3848833c3b811352078a6236457cd3a943 /drivers/net/wireless/iwlwifi/iwl-agn-rs.c
parent4dcba6d3c5f6e9a32db85f6554c8cd81b38f1a42 (diff)
downloadlinux-3ac40edadcb7799391452ffaa1745084c3e4c747.tar.xz
iwlwifi: calculate active legacy rates per station
Not all stations are guaranteed to have the same active (available) legacy rates, so calculate them on rate control init instead of hard-coding them based on our own available rates. I have no idea why that was done here before. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-agn-rs.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-agn-rs.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index 08419e833c4d..8b13b6cf940a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -2826,6 +2826,7 @@ void iwl_rs_rate_init(struct iwl_priv *priv, struct ieee80211_sta *sta, u8 sta_i
struct iwl_station_priv *sta_priv;
struct iwl_lq_sta *lq_sta;
struct ieee80211_supported_band *sband;
+ unsigned long supp; /* must be unsigned long for for_each_set_bit */
sta_priv = (struct iwl_station_priv *) sta->drv_priv;
lq_sta = &sta_priv->lq_sta;
@@ -2855,8 +2856,15 @@ void iwl_rs_rate_init(struct iwl_priv *priv, struct ieee80211_sta *sta, u8 sta_i
lq_sta->max_rate_idx = -1;
lq_sta->missed_rate_counter = IWL_MISSED_RATE_MAX;
lq_sta->is_green = rs_use_green(sta);
- lq_sta->active_legacy_rate = priv->active_rate & ~(0x1000);
- lq_sta->band = priv->band;
+ lq_sta->band = sband->band;
+ /*
+ * active legacy rates as per supported rates bitmap
+ */
+ supp = sta->supp_rates[sband->band];
+ lq_sta->active_legacy_rate = 0;
+ for_each_set_bit(i, &supp, BITS_PER_LONG)
+ lq_sta->active_legacy_rate |= BIT(sband->bitrates[i].hw_value);
+
/*
* active_siso_rate mask includes 9 MBits (bit 5), and CCK (bits 0-3),
* supp_rates[] does not; shift to convert format, force 9 MBits off.