iwlagn: fix needed chains calculation
Garen noticed that this was wrong. Fix
the calibration -- default to multiple
chains and fall back to single where
possible.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
index 0228877..1fab1bb 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
@@ -458,11 +458,13 @@
>> IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT;
maxstreams += 1;
+ need_multiple = true;
+
if ((ht_cap->mcs.rx_mask[1] == 0) &&
(ht_cap->mcs.rx_mask[2] == 0))
need_multiple = false;
if (maxstreams <= 1)
- need_multiple = true;
+ need_multiple = false;
} else {
/*
* If at all, this can only happen through a race