iwlwifi: quiet a noisy printk
Timing issues in microcode for some devices can cause a compressed BA to
be sent to the driver prior to returning any a-MPDU notification.
Traces show RTS-CTS is exchanged and then the timer fires which causes an
empty BA to be sent which acknowledges nothing. This results in a noisy
printk. Only print the message if the bitmap is non-zero.
Signed-off-by: Don Fry <donald.h.fry@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-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
index db57aea..2b078a9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
@@ -1227,7 +1227,8 @@
struct ieee80211_tx_info *info;
if (unlikely(!agg->wait_for_ba)) {
- IWL_ERR(priv, "Received BA when not expected\n");
+ if (unlikely(ba_resp->bitmap))
+ IWL_ERR(priv, "Received BA when not expected\n");
return -EINVAL;
}
