package/kernel/mac80211/patches/subsys/331-mac80211-make-sta-airtime-deficit-field-s32-instead-.patch

   1 From: Felix Fietkau <nbd@nbd.name>
   2 Date: Mon, 20 Jun 2022 14:53:04 +0200
   3 Subject: [PATCH] mac80211: make sta airtime deficit field s32 instead of
   4  s64
   5
   6 32 bit is more than enough range for the airtime deficit
   7
   8 Signed-off-by: Felix Fietkau <nbd@nbd.name>
   9 ---
  10
  11 --- a/net/mac80211/debugfs_sta.c
  12 +++ b/net/mac80211/debugfs_sta.c
  13 @@ -202,7 +202,7 @@ static ssize_t sta_airtime_read(struct f
  14         size_t bufsz = 400;
  15         char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
  16         u64 rx_airtime = 0, tx_airtime = 0;
  17 -       s64 deficit[IEEE80211_NUM_ACS];
  18 +       s32 deficit[IEEE80211_NUM_ACS];
  19         ssize_t rv;
  20         int ac;
  21
  22 @@ -219,7 +219,7 @@ static ssize_t sta_airtime_read(struct f
  23
  24         p += scnprintf(p, bufsz + buf - p,
  25                 "RX: %llu us\nTX: %llu us\nWeight: %u\n"
  26 -               "Deficit: VO: %lld us VI: %lld us BE: %lld us BK: %lld us\n",
  27 +               "Deficit: VO: %d us VI: %d us BE: %d us BK: %d us\n",
  28                 rx_airtime, tx_airtime, sta->airtime_weight,
  29                 deficit[0], deficit[1], deficit[2], deficit[3]);
  30
  31 --- a/net/mac80211/sta_info.h
  32 +++ b/net/mac80211/sta_info.h
  33 @@ -138,7 +138,7 @@ enum ieee80211_agg_stop_reason {
  34  struct airtime_info {
  35         u64 rx_airtime;
  36         u64 tx_airtime;
  37 -       s64 deficit;
  38 +       s32 deficit;
  39         atomic_t aql_tx_pending; /* Estimated airtime for frames pending */
  40         u32 aql_limit_low;
  41         u32 aql_limit_high;
  42 --- a/net/mac80211/tx.c
  43 +++ b/net/mac80211/tx.c
  44 @@ -3847,7 +3847,7 @@ struct ieee80211_txq *ieee80211_next_txq
  45                 struct sta_info *sta = container_of(txqi->txq.sta,
  46                                                     struct sta_info, sta);
  47                 bool aql_check = ieee80211_txq_airtime_check(hw, &txqi->txq);
  48 -               s64 deficit = sta->airtime[txqi->txq.ac].deficit;
  49 +               s32 deficit = sta->airtime[txqi->txq.ac].deficit;
  50
  51                 if (aql_check)
  52                         found_eligible_txq = true;