summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorRajkumar Manoharan <rmanoharan@atheros.com>2011-05-20 17:52:14 +0530
committerJohn W. Linville <linville@tuxdriver.com>2011-05-26 15:43:32 -0400
commit41e2b05b9598d6bdf91fc20280bfc538d853f769 (patch)
treeb36b2bdb2e762469ba43e49ebf9f80d4c2b18954
parent51ac8cbb2176dc159ee910d7074c6796079c3068 (diff)
downloadop-kernel-dev-41e2b05b9598d6bdf91fc20280bfc538d853f769.zip
op-kernel-dev-41e2b05b9598d6bdf91fc20280bfc538d853f769.tar.gz
ath9k: set 40 Mhz rate only if hw is configured in ht40
Whenever there is a channel width change from 40 Mhz to 20 Mhz, the hardware is reconfigured to ht20. Meantime before doing the rate control updation, the packets are being transmitted are selected rate with IEEE80211_TX_RC_40_MHZ_WIDTH. While transmitting ht40 rate packets in ht20 mode is causing baseband panic with AR9003 based chips. ==== BB update: BB status=0x02001109 ==== ath: ** BB state: wd=1 det=1 rdar=0 rOFDM=1 rCCK=1 tOFDM=0 tCCK=0 agc=2 src=0 ** ath: ** BB WD cntl: cntl1=0xffff0085 cntl2=0x00000004 ** ath: ** BB mode: BB_gen_controls=0x000033c0 ** ath: ** BB busy times: rx_clear=99%, rx_frame=0%, tx_frame=0% ** ath: ==== BB update: done ==== Cc: stable@kernel.org Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/ath/ath9k/rc.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath9k/rc.c b/drivers/net/wireless/ath/ath9k/rc.c
index 133502b..c0d0773 100644
--- a/drivers/net/wireless/ath/ath9k/rc.c
+++ b/drivers/net/wireless/ath/ath9k/rc.c
@@ -689,7 +689,8 @@ static void ath_rc_rate_set_series(const struct ath_rate_table *rate_table,
if (WLAN_RC_PHY_HT(rate_table->info[rix].phy)) {
rate->flags |= IEEE80211_TX_RC_MCS;
- if (WLAN_RC_PHY_40(rate_table->info[rix].phy))
+ if (WLAN_RC_PHY_40(rate_table->info[rix].phy) &&
+ conf_is_ht40(&txrc->hw->conf))
rate->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;
if (WLAN_RC_PHY_SGI(rate_table->info[rix].phy))
rate->flags |= IEEE80211_TX_RC_SHORT_GI;
OpenPOWER on IntegriCloud