package/kernel/mac80211/patches/300-ath9k-force-rx_clear-when-disabling-rx.patch

   1 From: Felix Fietkau <nbd@openwrt.org>
   2 Date: Sun, 7 Jun 2015 13:53:35 +0200
   3 Subject: [PATCH] ath9k: force rx_clear when disabling rx
   4
   5 This makes stopping Rx more reliable and should reduce the frequency of
   6 Rx related DMA stop warnings
   7
   8 Cc: stable@vger.kernel.org
   9 Signed-off-by: Felix Fietkau <nbd@openwrt.org>
  10 ---
  11
  12 --- a/drivers/net/wireless/ath/ath9k/mac.c
  13 +++ b/drivers/net/wireless/ath/ath9k/mac.c
  14 @@ -677,13 +677,15 @@ void ath9k_hw_startpcureceive(struct ath
  15
  16         ath9k_ani_reset(ah, is_scanning);
  17
  18 -       REG_CLR_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
  19 +       REG_CLR_BIT(ah, AR_DIAG_SW,
  20 +                   AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT | AR_DIAG_FORCE_RX_CLEAR);
  21  }
  22  EXPORT_SYMBOL(ath9k_hw_startpcureceive);
  23
  24  void ath9k_hw_abortpcurecv(struct ath_hw *ah)
  25  {
  26 -       REG_SET_BIT(ah, AR_DIAG_SW, AR_DIAG_RX_ABORT | AR_DIAG_RX_DIS);
  27 +       REG_SET_BIT(ah, AR_DIAG_SW,
  28 +                   AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT | AR_DIAG_FORCE_RX_CLEAR);
  29
  30         ath9k_hw_disable_mib_counters(ah);
  31  }