package/kernel/mac80211/patches/subsys/370-mac80211-minstrel-remove-unnecessary-debugfs-cleanup.patch

   1 From: Felix Fietkau <nbd@nbd.name>
   2 Date: Sat, 10 Feb 2018 12:41:51 +0100
   3 Subject: [PATCH] mac80211: minstrel: remove unnecessary debugfs cleanup
   4  code
   5
   6 debugfs entries are cleaned up by debugfs_remove_recursive already.
   7
   8 Signed-off-by: Felix Fietkau <nbd@nbd.name>
   9 ---
  10
  11 --- a/net/mac80211/rc80211_minstrel.c
  12 +++ b/net/mac80211/rc80211_minstrel.c
  13 @@ -689,8 +689,8 @@ minstrel_alloc(struct ieee80211_hw *hw,
  14
  15  #ifdef CPTCFG_MAC80211_DEBUGFS
  16         mp->fixed_rate_idx = (u32) -1;
  17 -       mp->dbg_fixed_rate = debugfs_create_u32("fixed_rate_idx",
  18 -                       0666, debugfsdir, &mp->fixed_rate_idx);
  19 +       debugfs_create_u32("fixed_rate_idx", S_IRUGO | S_IWUGO, debugfsdir,
  20 +                          &mp->fixed_rate_idx);
  21  #endif
  22
  23         minstrel_init_cck_rates(mp);
  24 @@ -701,9 +701,6 @@ minstrel_alloc(struct ieee80211_hw *hw,
  25  static void
  26  minstrel_free(void *priv)
  27  {
  28 -#ifdef CPTCFG_MAC80211_DEBUGFS
  29 -       debugfs_remove(((struct minstrel_priv *)priv)->dbg_fixed_rate);
  30 -#endif
  31         kfree(priv);
  32  }
  33
  34 @@ -735,7 +732,6 @@ const struct rate_control_ops mac80211_m
  35         .free_sta = minstrel_free_sta,
  36  #ifdef CPTCFG_MAC80211_DEBUGFS
  37         .add_sta_debugfs = minstrel_add_sta_debugfs,
  38 -       .remove_sta_debugfs = minstrel_remove_sta_debugfs,
  39  #endif
  40         .get_expected_throughput = minstrel_get_expected_throughput,
  41  };
  42 --- a/net/mac80211/rc80211_minstrel.h
  43 +++ b/net/mac80211/rc80211_minstrel.h
  44 @@ -109,11 +109,6 @@ struct minstrel_sta_info {
  45
  46         /* sampling table */
  47         u8 *sample_table;
  48 -
  49 -#ifdef CPTCFG_MAC80211_DEBUGFS
  50 -       struct dentry *dbg_stats;
  51 -       struct dentry *dbg_stats_csv;
  52 -#endif
  53  };
  54
  55  struct minstrel_priv {
  56 @@ -137,7 +132,6 @@ struct minstrel_priv {
  57          *   - setting will be applied on next update
  58          */
  59         u32 fixed_rate_idx;
  60 -       struct dentry *dbg_fixed_rate;
  61  #endif
  62  };
  63
  64 @@ -156,7 +150,6 @@ minstrel_get_ewmsd10(struct minstrel_rat
  65
  66  extern const struct rate_control_ops mac80211_minstrel;
  67  void minstrel_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir);
  68 -void minstrel_remove_sta_debugfs(void *priv, void *priv_sta);
  69
  70  /* Recalculate success probabilities and counters for a given rate using EWMA */
  71  void minstrel_calc_rate_stats(struct minstrel_rate_stats *mrs);
  72 --- a/net/mac80211/rc80211_minstrel_debugfs.c
  73 +++ b/net/mac80211/rc80211_minstrel_debugfs.c
  74 @@ -214,19 +214,7 @@ minstrel_add_sta_debugfs(void *priv, voi
  75  {
  76         struct minstrel_sta_info *mi = priv_sta;
  77
  78 -       mi->dbg_stats = debugfs_create_file("rc_stats", 0444, dir, mi,
  79 -                                           &minstrel_stat_fops);
  80 -
  81 -       mi->dbg_stats_csv = debugfs_create_file("rc_stats_csv", 0444, dir, mi,
  82 -                                               &minstrel_stat_csv_fops);
  83 -}
  84 -
  85 -void
  86 -minstrel_remove_sta_debugfs(void *priv, void *priv_sta)
  87 -{
  88 -       struct minstrel_sta_info *mi = priv_sta;
  89 -
  90 -       debugfs_remove(mi->dbg_stats);
  91 -
  92 -       debugfs_remove(mi->dbg_stats_csv);
  93 +       debugfs_create_file("rc_stats", S_IRUGO, dir, mi, &minstrel_stat_fops);
  94 +       debugfs_create_file("rc_stats_csv", S_IRUGO, dir, mi,
  95 +                           &minstrel_stat_csv_fops);
  96  }
  97 --- a/net/mac80211/rc80211_minstrel_ht.c
  98 +++ b/net/mac80211/rc80211_minstrel_ht.c
  99 @@ -1393,7 +1393,6 @@ static const struct rate_control_ops mac
 100         .free = minstrel_ht_free,
 101  #ifdef CPTCFG_MAC80211_DEBUGFS
 102         .add_sta_debugfs = minstrel_ht_add_sta_debugfs,
 103 -       .remove_sta_debugfs = minstrel_ht_remove_sta_debugfs,
 104  #endif
 105         .get_expected_throughput = minstrel_ht_get_expected_throughput,
 106  };
 107 --- a/net/mac80211/rc80211_minstrel_ht.h
 108 +++ b/net/mac80211/rc80211_minstrel_ht.h
 109 @@ -110,17 +110,12 @@ struct minstrel_ht_sta_priv {
 110                 struct minstrel_ht_sta ht;
 111                 struct minstrel_sta_info legacy;
 112         };
 113 -#ifdef CPTCFG_MAC80211_DEBUGFS
 114 -       struct dentry *dbg_stats;
 115 -       struct dentry *dbg_stats_csv;
 116 -#endif
 117         void *ratelist;
 118         void *sample_table;
 119         bool is_ht;
 120  };
 121
 122  void minstrel_ht_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir);
 123 -void minstrel_ht_remove_sta_debugfs(void *priv, void *priv_sta);
 124  int minstrel_ht_get_tp_avg(struct minstrel_ht_sta *mi, int group, int rate,
 125                            int prob_ewma);
 126
 127 --- a/net/mac80211/rc80211_minstrel_ht_debugfs.c
 128 +++ b/net/mac80211/rc80211_minstrel_ht_debugfs.c
 129 @@ -303,17 +303,8 @@ minstrel_ht_add_sta_debugfs(void *priv,
 130  {
 131         struct minstrel_ht_sta_priv *msp = priv_sta;
 132
 133 -       msp->dbg_stats = debugfs_create_file("rc_stats", 0444, dir, msp,
 134 -                                            &minstrel_ht_stat_fops);
 135 -       msp->dbg_stats_csv = debugfs_create_file("rc_stats_csv", 0444, dir, msp,
 136 -                                                &minstrel_ht_stat_csv_fops);
 137 -}
 138 -
 139 -void
 140 -minstrel_ht_remove_sta_debugfs(void *priv, void *priv_sta)
 141 -{
 142 -       struct minstrel_ht_sta_priv *msp = priv_sta;
 143 -
 144 -       debugfs_remove(msp->dbg_stats);
 145 -       debugfs_remove(msp->dbg_stats_csv);
 146 +       debugfs_create_file("rc_stats", S_IRUGO, dir, msp,
 147 +                           &minstrel_ht_stat_fops);
 148 +       debugfs_create_file("rc_stats_csv", S_IRUGO, dir, msp,
 149 +                           &minstrel_ht_stat_csv_fops);
 150  }