1 files changed, 47 insertions, 39 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index 91f26556ac2..592b0cfcf71 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -335,6 +335,32 @@ static u8 rs_tl_add_packet(struct iwl_lq_sta *lq_data,
         return tid;
 }
 
+#ifdef CONFIG_MAC80211_DEBUGFS
+static void rs_program_fix_rate(struct iwl_priv *priv,
+                                struct iwl_lq_sta *lq_sta)
+{
+        struct iwl_station_priv *sta_priv =
+                container_of(lq_sta, struct iwl_station_priv, lq_sta);
+        struct iwl_rxon_context *ctx = sta_priv->common.ctx;
+
+        lq_sta->active_legacy_rate = 0x0FFF;    /* 1 - 54 MBits, includes CCK */
+        lq_sta->active_siso_rate   = 0x1FD0;    /* 6 - 60 MBits, no 9, no CCK */
+        lq_sta->active_mimo2_rate  = 0x1FD0;    /* 6 - 60 MBits, no 9, no CCK */
+        lq_sta->active_mimo3_rate  = 0x1FD0;    /* 6 - 60 MBits, no 9, no CCK */
+
+        lq_sta->dbg_fixed_rate = priv->dbg_fixed_rate;
+
+        IWL_DEBUG_RATE(priv, "sta_id %d rate 0x%X\n",
+                lq_sta->lq.sta_id, priv->dbg_fixed_rate);
+
+        if (priv->dbg_fixed_rate) {
+                rs_fill_link_cmd(NULL, lq_sta, priv->dbg_fixed_rate);
+                iwl_send_lq_cmd(lq_sta->drv, ctx, &lq_sta->lq, CMD_ASYNC,
+                                false);
+        }
+}
+#endif
+
 /*
         get the traffic load value for tid
 */
@@ -1046,7 +1072,10 @@ done:
         /* See if there's a better rate or modulation mode to try. */
         if (sta && sta->supp_rates[sband->band])
                 rs_rate_scale_perform(priv, skb, sta, lq_sta);
-
+#ifdef CONFIG_MAC80211_DEBUGFS
+        if (priv->dbg_fixed_rate != lq_sta->dbg_fixed_rate)
+                rs_program_fix_rate(priv, lq_sta);
+#endif
         if (priv->cfg->bt_params && priv->cfg->bt_params->advanced_bt_coexist)
                 rs_bt_update_lq(priv, ctx, lq_sta);
 }
@@ -2170,11 +2199,11 @@ static void rs_stay_in_table(struct iwl_lq_sta *lq_sta, bool force_search)
  * setup rate table in uCode
  * return rate_n_flags as used in the table
  */
-static u32 rs_update_rate_tbl(struct iwl_priv *priv,
-                              struct iwl_rxon_context *ctx,
-                                struct iwl_lq_sta *lq_sta,
-                                struct iwl_scale_tbl_info *tbl,
-                                int index, u8 is_green)
+static void rs_update_rate_tbl(struct iwl_priv *priv,
+                               struct iwl_rxon_context *ctx,
+                               struct iwl_lq_sta *lq_sta,
+                               struct iwl_scale_tbl_info *tbl,
+                               int index, u8 is_green)
 {
         u32 rate;
 
@@ -2182,8 +2211,6 @@ static u32 rs_update_rate_tbl(struct iwl_priv *priv,
         rate = rate_n_flags_from_tbl(priv, tbl, index, is_green);
         rs_fill_link_cmd(priv, lq_sta, rate);
         iwl_send_lq_cmd(priv, ctx, &lq_sta->lq, CMD_ASYNC, false);
-
-        return rate;
 }
 
 /*
@@ -2212,7 +2239,6 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
         u8 update_lq = 0;
         struct iwl_scale_tbl_info *tbl, *tbl1;
         u16 rate_scale_index_msk = 0;
-        u32 rate;
         u8 is_green = 0;
         u8 active_tbl = 0;
         u8 done_search = 0;
@@ -2299,8 +2325,8 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
                         tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
                         /* get "active" rate info */
                         index = iwl_hwrate_to_plcp_idx(tbl->current_rate);
-                        rate = rs_update_rate_tbl(priv, ctx, lq_sta,
-                                                  tbl, index, is_green);
+                        rs_update_rate_tbl(priv, ctx, lq_sta, tbl,
+                                           index, is_green);
                 }
                 return;
         }
@@ -2541,8 +2567,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
 lq_update:
         /* Replace uCode's rate table for the destination station. */
         if (update_lq)
-                rate = rs_update_rate_tbl(priv, ctx, lq_sta,
-                                          tbl, index, is_green);
+                rs_update_rate_tbl(priv, ctx, lq_sta, tbl, index, is_green);
 
         if (iwl_tx_ant_restriction(priv) == IWL_ANT_OK_MULTI) {
                 /* Should we stay with this modulation mode,
@@ -2871,6 +2896,7 @@ void iwl_rs_rate_init(struct iwl_priv *priv, struct ieee80211_sta *sta, u8 sta_i
                 lq_sta->last_txrate_idx += IWL_FIRST_OFDM_RATE;
         lq_sta->is_agg = 0;
 
+        priv->dbg_fixed_rate = 0;
 #ifdef CONFIG_MAC80211_DEBUGFS
         lq_sta->dbg_fixed_rate = 0;
 #endif
@@ -3045,7 +3071,6 @@ static void rs_free_sta(void *priv_r, struct ieee80211_sta *sta,
         IWL_DEBUG_RATE(priv, "leave\n");
 }
 
-
 #ifdef CONFIG_MAC80211_DEBUGFS
 static int open_file_generic(struct inode *inode, struct file *file)
 {
@@ -3070,6 +3095,7 @@ static void rs_dbgfs_set_mcs(struct iwl_lq_sta *lq_sta,
                         IWL_DEBUG_RATE(priv, "Fixed rate ON\n");
                 } else {
                         lq_sta->dbg_fixed_rate = 0;
+                        priv->dbg_fixed_rate = 0;
                         IWL_ERR(priv,
                             "Invalid antenna selection 0x%X, Valid is 0x%X\n",
                             ant_sel_tx, valid_tx_ant);
@@ -3088,9 +3114,7 @@ static ssize_t rs_sta_dbgfs_scale_table_write(struct file *file,
         char buf[64];
         size_t buf_size;
         u32 parsed_rate;
-        struct iwl_station_priv *sta_priv =
-                container_of(lq_sta, struct iwl_station_priv, lq_sta);
-        struct iwl_rxon_context *ctx = sta_priv->common.ctx;
+
 
         priv = lq_sta->drv;
         memset(buf, 0, sizeof(buf));
@@ -3099,23 +3123,11 @@ static ssize_t rs_sta_dbgfs_scale_table_write(struct file *file,
                 return -EFAULT;
 
         if (sscanf(buf, "%x", &parsed_rate) == 1)
-                lq_sta->dbg_fixed_rate = parsed_rate;
+                priv->dbg_fixed_rate = lq_sta->dbg_fixed_rate = parsed_rate;
         else
-                lq_sta->dbg_fixed_rate = 0;
+                priv->dbg_fixed_rate = lq_sta->dbg_fixed_rate = 0;
 
-        lq_sta->active_legacy_rate = 0x0FFF;    /* 1 - 54 MBits, includes CCK */
-        lq_sta->active_siso_rate   = 0x1FD0;    /* 6 - 60 MBits, no 9, no CCK */
-        lq_sta->active_mimo2_rate  = 0x1FD0;    /* 6 - 60 MBits, no 9, no CCK */
-        lq_sta->active_mimo3_rate  = 0x1FD0;    /* 6 - 60 MBits, no 9, no CCK */
-
-        IWL_DEBUG_RATE(priv, "sta_id %d rate 0x%X\n",
-                lq_sta->lq.sta_id, lq_sta->dbg_fixed_rate);
-
-        if (lq_sta->dbg_fixed_rate) {
-                rs_fill_link_cmd(NULL, lq_sta, lq_sta->dbg_fixed_rate);
-                iwl_send_lq_cmd(lq_sta->drv, ctx, &lq_sta->lq, CMD_ASYNC,
-                                false);
-        }
+        rs_program_fix_rate(priv, lq_sta);
 
         return count;
 }
@@ -3143,7 +3155,7 @@ static ssize_t rs_sta_dbgfs_scale_table_read(struct file *file,
                         lq_sta->total_failed, lq_sta->total_success,
                         lq_sta->active_legacy_rate);
         desc += sprintf(buff+desc, "fixed rate 0x%X\n",
-                        lq_sta->dbg_fixed_rate);
+                        priv->dbg_fixed_rate);
         desc += sprintf(buff+desc, "valid_tx_ant %s%s%s\n",
             (priv->hw_params.valid_tx_ant & ANT_A) ? "ANT_A," : "",
             (priv->hw_params.valid_tx_ant & ANT_B) ? "ANT_B," : "",
@@ -3254,14 +3266,10 @@ static const struct file_operations rs_sta_dbgfs_stats_table_ops = {
 static ssize_t rs_sta_dbgfs_rate_scale_data_read(struct file *file,
                         char __user *user_buf, size_t count, loff_t *ppos)
 {
-        char buff[120];
-        int desc = 0;
-
         struct iwl_lq_sta *lq_sta = file->private_data;
-        struct iwl_priv *priv;
         struct iwl_scale_tbl_info *tbl = &lq_sta->lq_info[lq_sta->active_tbl];
-
-        priv = lq_sta->drv;
+        char buff[120];
+        int desc = 0;
 
         if (is_Ht(tbl->lq_type))
                 desc += sprintf(buff+desc,