package/kernel/mac80211/patches/ath/555-ath9k-dynack-check-da-enabled-first-in-sampling-rout.patch

   1 From: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
   2 Date: Fri, 2 Nov 2018 21:49:57 +0100
   3 Subject: [PATCH] ath9k: dynack: check da->enabled first in sampling
   4  routines
   5
   6 Check da->enabled flag first in ath_dynack_sample_tx_ts and
   7 ath_dynack_sample_ack_ts routines in order to avoid useless
   8 processing
   9
  10 Tested-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
  11 Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
  12 ---
  13
  14 --- a/drivers/net/wireless/ath/ath9k/dynack.c
  15 +++ b/drivers/net/wireless/ath/ath9k/dynack.c
  16 @@ -178,7 +178,7 @@ void ath_dynack_sample_tx_ts(struct ath_
  17         u32 dur = ts->duration;
  18         u8 ridx;
  19
  20 -       if ((info->flags & IEEE80211_TX_CTL_NO_ACK) || !da->enabled)
  21 +       if (!da->enabled || (info->flags & IEEE80211_TX_CTL_NO_ACK))
  22                 return;
  23
  24         spin_lock_bh(&da->qlock);
  25 @@ -251,7 +251,7 @@ void ath_dynack_sample_ack_ts(struct ath
  26         struct ath_common *common = ath9k_hw_common(ah);
  27         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
  28
  29 -       if (!ath_dynack_bssidmask(ah, hdr->addr1) || !da->enabled)
  30 +       if (!da->enabled || !ath_dynack_bssidmask(ah, hdr->addr1))
  31                 return;
  32
  33         spin_lock_bh(&da->qlock);