iwlwifi: keep plcp_delta_threshold in priv

The base_params shouldn't be writable, so keep
a copy of this in priv that can be modified.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rx.c b/drivers/net/wireless/iwlwifi/iwl-agn-rx.c
index d16e73d..5c9c88b 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rx.c
@@ -320,7 +320,7 @@ static bool iwlagn_good_plcp_health(struct iwl_priv *priv,
                                 unsigned int msecs)
 {
        int delta;
-       int threshold = cfg(priv)->base_params->plcp_delta_threshold;
+       int threshold = priv->plcp_delta_threshold;
 
        if (threshold == IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE) {
                IWL_DEBUG_RADIO(priv, "plcp_err check disabled\n");

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 8cf149c..ac23aa3 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -1045,6 +1045,9 @@ static int iwl_init_drv(struct iwl_priv *priv)
        priv->ieee_rates = NULL;
        priv->band = IEEE80211_BAND_2GHZ;
 
+       priv->plcp_delta_threshold =
+               cfg(priv)->base_params->plcp_delta_threshold;
+
        priv->iw_mode = NL80211_IFTYPE_STATION;
        priv->current_ht_config.smps = IEEE80211_SMPS_STATIC;
        priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF;

diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index b9b6d62..ade4134 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -2241,7 +2241,7 @@ static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
        const size_t bufsz = sizeof(buf);
 
        pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
-                       cfg(priv)->base_params->plcp_delta_threshold);
+                       priv->plcp_delta_threshold);
 
        return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 }
@@ -2263,10 +2263,10 @@ static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
                return -EINVAL;
        if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
                (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
-               cfg(priv)->base_params->plcp_delta_threshold =
+               priv->plcp_delta_threshold =
                        IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE;
        else
-               cfg(priv)->base_params->plcp_delta_threshold = plcp;
+               priv->plcp_delta_threshold = plcp;
        return count;
 }
 

diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 73acbab..0c397fd 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -770,6 +770,8 @@ struct iwl_priv {
        struct iwl_channel_info *channel_info;  /* channel info array */
        u8 channel_count;       /* # of channels */
 
+       u8 plcp_delta_threshold;
+
        /* thermal calibration */
        s32 temperature;        /* Celsius */
        s32 last_temperature;