Commit 649a6ac4 authored Dec 02, 2012 by Christian Lamparter Committed by John W. Linville Dec 03, 2012

carl9170: fix signal strength reporting issues



On A-MPDU frames, the hardware only reports valid
signal strength data for the last subframe.

This patch fixes it by flagging everything but the
last subframe in an A-MPDU to tell mac80211 to
ignore the signal strength entirely. Otherwise
the empty value (= 0 dbm) will distort the
average quite badly.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

parent 33e274e6

drivers/net/wireless/ath/carl9170/rx.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -814,6 +814,8 @@ static void carl9170_rx_untie_data(struct ar9170 ar, u8 buf, int len)

		if (phy)
		carl9170_rx_phy_status(ar, phy, &status);
		else
		status.flag \|= RX_FLAG_NO_SIGNAL_VAL;

		if (carl9170_handle_mpdu(ar, buf, mpdu_len, &status))
		goto drop;