ath9k: Fix RX packet counter

Handle chained descriptors and increment the RX counter
only for valid packets. Since this is used only by MCI,
use CONFIG_ATH9K_BTCOEX_SUPPORT.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index 2d0017cc2ee2233705d871496c906b9e139b10e8..823b4111e282aa795a62be9377b3d1f5e978fb2f 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -1119,6 +1119,13 @@ static int ath9k_rx_skb_preprocess(struct ath_softc *sc,
                rx_status->flag |= RX_FLAG_NO_SIGNAL_VAL;
 
        sc->rx.discard_next = false;
+
+#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
+       if (ieee80211_is_data_present(hdr->frame_control) &&
+           !ieee80211_is_qos_nullfunc(hdr->frame_control))
+               sc->rx.num_pkts++;
+#endif
+
        return 0;
 }
 
@@ -1267,10 +1274,6 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp)
                hdr = (struct ieee80211_hdr *) (hdr_skb->data +
                                                ah->caps.rx_status_len);
 
-               if (ieee80211_is_data_present(hdr->frame_control) &&
-                   !ieee80211_is_qos_nullfunc(hdr->frame_control))
-                       sc->rx.num_pkts++;
-
                rxs = IEEE80211_SKB_RXCB(hdr_skb);
                memset(rxs, 0, sizeof(struct ieee80211_rx_status));