Commit 822395b5 authored Oct 23, 2010 by Don Fry Committed by John W. Linville Oct 25, 2010

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>

parent fac6b6a0

drivers/net/wireless/iwlwifi/iwl-agn-tx.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -1227,6 +1227,7 @@ static int iwlagn_tx_status_reply_compressed_ba(struct iwl_priv *priv,
		struct ieee80211_tx_info *info;

		if (unlikely(!agg->wait_for_ba)) {
		if (unlikely(ba_resp->bitmap))
		IWL_ERR(priv, "Received BA when not expected\n");
		return -EINVAL;
		}