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-rw-r--r--drivers/net/wireless/ath/ath9k/mac.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c
index 1550591ed41..e955bb9d98c 100644
--- a/drivers/net/wireless/ath/ath9k/mac.c
+++ b/drivers/net/wireless/ath/ath9k/mac.c
@@ -555,8 +555,13 @@ bool ath9k_hw_resettxqueue(struct ath_hw *ah, u32 q)
REGWRITE_BUFFER_FLUSH(ah);
DISABLE_REGWRITE_BUFFER(ah);
- /* cwmin and cwmax should be 0 for beacon queue */
- if (AR_SREV_9300_20_OR_LATER(ah)) {
+ /*
+ * cwmin and cwmax should be 0 for beacon queue
+ * but not for IBSS as we would create an imbalance
+ * on beaconing fairness for participating nodes.
+ */
+ if (AR_SREV_9300_20_OR_LATER(ah) &&
+ ah->opmode != NL80211_IFTYPE_ADHOC) {
REG_WRITE(ah, AR_DLCL_IFS(q), SM(0, AR_D_LCL_IFS_CWMIN)
| SM(0, AR_D_LCL_IFS_CWMAX)
| SM(qi->tqi_aifs, AR_D_LCL_IFS_AIFS));