iwlwifi: introduce iwl_bt_statistics

We use priv->cfg->bt_params && priv->cfg->bt_params->bt_statistics
conditional in few places, merge it into one function.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

6 files changed, 19 insertions, 27 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-calib.c b/drivers/net/wireless/iwlwifi/iwl-agn-calib.c
index d16bb5ede014..9006293e740c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-calib.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-calib.c
@@ -631,8 +631,7 @@ void iwl_sensitivity_calibration(struct iwl_priv *priv, void *resp)
         }
 
         spin_lock_irqsave(&priv->lock, flags);
-        if (priv->cfg->bt_params &&
-            priv->cfg->bt_params->bt_statistics) {
+        if (iwl_bt_statistics(priv)) {
                 rx_info = &(((struct iwl_bt_notif_statistics *)resp)->
                               rx.general.common);
                 ofdm = &(((struct iwl_bt_notif_statistics *)resp)->rx.ofdm);
@@ -897,8 +896,7 @@ void iwl_chain_noise_calibration(struct iwl_priv *priv, void *stat_resp)
         }
 
         spin_lock_irqsave(&priv->lock, flags);
-        if (priv->cfg->bt_params &&
-            priv->cfg->bt_params->bt_statistics) {
+        if (iwl_bt_statistics(priv)) {
                 rx_info = &(((struct iwl_bt_notif_statistics *)stat_resp)->
                               rx.general.common);
         } else {
@@ -913,8 +911,7 @@ void iwl_chain_noise_calibration(struct iwl_priv *priv, void *stat_resp)
 
         rxon_band24 = !!(ctx->staging.flags & RXON_FLG_BAND_24G_MSK);
         rxon_chnum = le16_to_cpu(ctx->staging.channel);
-        if (priv->cfg->bt_params &&
-            priv->cfg->bt_params->bt_statistics) {
+        if (iwl_bt_statistics(priv)) {
                 stat_band24 = !!(((struct iwl_bt_notif_statistics *)
                                  stat_resp)->flag &
                                  STATISTICS_REPLY_FLG_BAND_24G_MSK);
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c
index a6dbd8983dac..b500aaae53ec 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c
@@ -39,8 +39,7 @@ static int iwl_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
         int p = 0;
         u32 flag;
 
-        if (priv->cfg->bt_params &&
-            priv->cfg->bt_params->bt_statistics)
+        if (iwl_bt_statistics(priv))
                 flag = le32_to_cpu(priv->_agn.statistics_bt.flag);
         else
                 flag = le32_to_cpu(priv->_agn.statistics.flag);
@@ -89,8 +88,7 @@ ssize_t iwl_ucode_rx_stats_read(struct file *file, char __user *user_buf,
          * the last statistics notification from uCode
          * might not reflect the current uCode activity
          */
-        if (priv->cfg->bt_params &&
-            priv->cfg->bt_params->bt_statistics) {
+        if (iwl_bt_statistics(priv)) {
                 ofdm = &priv->_agn.statistics_bt.rx.ofdm;
                 cck = &priv->_agn.statistics_bt.rx.cck;
                 general = &priv->_agn.statistics_bt.rx.general.common;
@@ -536,8 +534,7 @@ ssize_t iwl_ucode_tx_stats_read(struct file *file,
           * the last statistics notification from uCode
           * might not reflect the current uCode activity
           */
-        if (priv->cfg->bt_params &&
-            priv->cfg->bt_params->bt_statistics) {
+        if (iwl_bt_statistics(priv)) {
                 tx = &priv->_agn.statistics_bt.tx;
                 accum_tx = &priv->_agn.accum_statistics_bt.tx;
                 delta_tx = &priv->_agn.delta_statistics_bt.tx;
@@ -737,8 +734,7 @@ ssize_t iwl_ucode_general_stats_read(struct file *file, char __user *user_buf,
           * the last statistics notification from uCode
           * might not reflect the current uCode activity
           */
-        if (priv->cfg->bt_params &&
-            priv->cfg->bt_params->bt_statistics) {
+        if (iwl_bt_statistics(priv)) {
                 general = &priv->_agn.statistics_bt.general.common;
                 dbg = &priv->_agn.statistics_bt.general.common.dbg;
                 div = &priv->_agn.statistics_bt.general.common.div;
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rx.c b/drivers/net/wireless/iwlwifi/iwl-agn-rx.c
index bbd40b7dd597..b192ca842f0a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rx.c
@@ -73,8 +73,7 @@ static void iwl_rx_calc_noise(struct iwl_priv *priv)
         int bcn_silence_a, bcn_silence_b, bcn_silence_c;
         int last_rx_noise;
 
-        if (priv->cfg->bt_params &&
-            priv->cfg->bt_params->bt_statistics)
+        if (iwl_bt_statistics(priv))
                 rx_info = &(priv->_agn.statistics_bt.rx.general.common);
         else
                 rx_info = &(priv->_agn.statistics.rx.general);
@@ -125,8 +124,7 @@ static void iwl_accumulative_statistics(struct iwl_priv *priv,
         struct statistics_general_common *general, *accum_general;
         struct statistics_tx *tx, *accum_tx;
 
-        if (priv->cfg->bt_params &&
-            priv->cfg->bt_params->bt_statistics) {
+        if (iwl_bt_statistics(priv)) {
                 prev_stats = (__le32 *)&priv->_agn.statistics_bt;
                 accum_stats = (u32 *)&priv->_agn.accum_statistics_bt;
                 size = sizeof(struct iwl_bt_notif_statistics);
@@ -207,8 +205,7 @@ bool iwl_good_plcp_health(struct iwl_priv *priv,
                 struct statistics_rx_phy *ofdm;
                 struct statistics_rx_ht_phy *ofdm_ht;
 
-                if (priv->cfg->bt_params &&
-                    priv->cfg->bt_params->bt_statistics) {
+                if (iwl_bt_statistics(priv)) {
                         ofdm = &pkt->u.stats_bt.rx.ofdm;
                         ofdm_ht = &pkt->u.stats_bt.rx.ofdm_ht;
                         combined_plcp_delta =
@@ -265,8 +262,7 @@ void iwl_rx_statistics(struct iwl_priv *priv,
         int change;
         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 
-        if (priv->cfg->bt_params &&
-            priv->cfg->bt_params->bt_statistics) {
+        if (iwl_bt_statistics(priv)) {
                 IWL_DEBUG_RX(priv,
                              "Statistics notification received (%d vs %d).\n",
                              (int)sizeof(struct iwl_bt_notif_statistics),
@@ -304,8 +300,7 @@ void iwl_rx_statistics(struct iwl_priv *priv,
 
         iwl_recover_from_statistics(priv, pkt);
 
-        if (priv->cfg->bt_params &&
-            priv->cfg->bt_params->bt_statistics)
+        if (iwl_bt_statistics(priv))
                 memcpy(&priv->_agn.statistics_bt, &pkt->u.stats_bt,
                         sizeof(priv->_agn.statistics_bt));
         else
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index eb16647cfbe0..646ccb2430b4 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -3077,8 +3077,7 @@ static void iwl_bg_run_time_calib_work(struct work_struct *work)
         }
 
         if (priv->start_calib) {
-                if (priv->cfg->bt_params &&
-                    priv->cfg->bt_params->bt_statistics) {
+                if (iwl_bt_statistics(priv)) {
                         iwl_chain_noise_calibration(priv,
                                         (void *)&priv->_agn.statistics_bt);
                         iwl_sensitivity_calibration(priv,
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 705711a01b17..c83fcc60ccc5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -747,6 +747,11 @@ static inline bool iwl_advanced_bt_coexist(struct iwl_priv *priv)
                priv->cfg->bt_params->advanced_bt_coexist;
 }
 
+static inline bool iwl_bt_statistics(struct iwl_priv *priv)
+{
+        return priv->cfg->bt_params && priv->cfg->bt_params->bt_statistics;
+}
+
 extern bool bt_coex_active;
 extern bool bt_siso_mode;
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index bde16acb08ca..bdcb74279f1e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -1765,7 +1765,7 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
                 DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR);
         if (priv->cfg->base_params->ucode_tracing)
                 DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, S_IWUSR | S_IRUSR);
-        if (priv->cfg->bt_params && priv->cfg->bt_params->bt_statistics)
+        if (iwl_bt_statistics(priv))
                 DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, S_IRUSR);
         DEBUGFS_ADD_FILE(reply_tx_error, dir_debug, S_IRUSR);
         DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR);