iwlwifi: move debug_level to sysfs/bus/pci/devices

This patch ports the debug_level from sysfs/bus/pci/drivers/iwl4965
to /sys/class/net/wlanX/device/debug_level

Signed-off-by: Ester Kummer <ester.kummer@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

4 files changed, 17 insertions, 24 deletions

diff --git a/drivers/net/wireless/iwlwifi/Kconfig b/drivers/net/wireless/iwlwifi/Kconfig
index cc0006900b30..193e48f3ed51 100644
--- a/drivers/net/wireless/iwlwifi/Kconfig
+++ b/drivers/net/wireless/iwlwifi/Kconfig
@@ -97,13 +97,13 @@ config IWLWIFI_DEBUG
           control which debug output is sent to the kernel log by setting the
           value in
 
-                  /sys/bus/pci/drivers/${DRIVER}/debug_level
+                /sys/class/net/wlan0/device/debug_level
 
           This entry will only exist if this option is enabled.
 
           To set a value, simply echo an 8-byte hex value to the same file:
 
-                  % echo 0x43fff > /sys/bus/pci/drivers/${DRIVER}/debug_level
+                  % echo 0x43fff > /sys/class/net/wlan0/device/debug_level
 
           You can find the list of debug mask values in:
                   drivers/net/wireless/iwlwifi/iwl-4965-debug.h
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 7759e63b2bcf..27e56b89d940 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -46,11 +46,6 @@ MODULE_VERSION(IWLWIFI_VERSION);
 MODULE_AUTHOR(DRV_COPYRIGHT);
 MODULE_LICENSE("GPL");
 
-#ifdef CONFIG_IWLWIFI_DEBUG
-u32 iwl_debug_level;
-EXPORT_SYMBOL(iwl_debug_level);
-#endif
-
 #define IWL_DECLARE_RATE_INFO(r, s, ip, in, rp, rn, pp, np)    \
         [IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP,      \
                                     IWL_RATE_SISO_##s##M_PLCP, \
diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h
index 14d95dd0e14d..2f24594c5fea 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debug.h
+++ b/drivers/net/wireless/iwlwifi/iwl-debug.h
@@ -30,7 +30,6 @@
 #define __iwl_debug_h__
 
 #ifdef CONFIG_IWLWIFI_DEBUG
-extern u32 iwl_debug_level;
 #define IWL_DEBUG(level, fmt, args...) \
 do { if (priv->debug_level & (level)) \
   dev_printk(KERN_ERR, &(priv->hw->wiphy->dev), "%c %s " fmt, \
diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c
index 45bbce7f66a4..7902d90d58c0 100644
--- a/drivers/net/wireless/iwlwifi/iwl4965-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c
@@ -5963,13 +5963,18 @@ static int iwl4965_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *sk
  * See the level definitions in iwl for details.
  */
 
-static ssize_t show_debug_level(struct device_driver *d, char *buf)
+static ssize_t show_debug_level(struct device *d,
+                                struct device_attribute *attr, char *buf)
 {
-        return sprintf(buf, "0x%08X\n", iwl_debug_level);
+        struct iwl_priv *priv = d->driver_data;
+
+        return sprintf(buf, "0x%08X\n", priv->debug_level);
 }
-static ssize_t store_debug_level(struct device_driver *d,
+static ssize_t store_debug_level(struct device *d,
+                                struct device_attribute *attr,
                                  const char *buf, size_t count)
 {
+        struct iwl_priv *priv = d->driver_data;
         char *p = (char *)buf;
         u32 val;
 
@@ -5978,13 +5983,14 @@ static ssize_t store_debug_level(struct device_driver *d,
                 printk(KERN_INFO DRV_NAME
                        ": %s is not in hex or decimal form.\n", buf);
         else
-                iwl_debug_level = val;
+                priv->debug_level = val;
 
         return strnlen(buf, count);
 }
 
-static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO,
-                   show_debug_level, store_debug_level);
+static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
+                        show_debug_level, store_debug_level);
+
 
 #endif /* CONFIG_IWLWIFI_DEBUG */
 
@@ -6431,6 +6437,9 @@ static struct attribute *iwl4965_sysfs_entries[] = {
         &dev_attr_status.attr,
         &dev_attr_temperature.attr,
         &dev_attr_tx_power.attr,
+#ifdef CONFIG_IWLWIFI_DEBUG
+        &dev_attr_debug_level.attr,
+#endif
 
         NULL
 };
@@ -6817,13 +6826,6 @@ static int __init iwl4965_init(void)
                 IWL_ERROR("Unable to initialize PCI module\n");
                 goto error_register;
         }
-#ifdef CONFIG_IWLWIFI_DEBUG
-        ret = driver_create_file(&iwl_driver.driver, &driver_attr_debug_level);
-        if (ret) {
-                IWL_ERROR("Unable to create driver sysfs file\n");
-                goto error_debug;
-        }
-#endif
 
         return ret;
 
@@ -6838,9 +6840,6 @@ error_register:
 
 static void __exit iwl4965_exit(void)
 {
-#ifdef CONFIG_IWLWIFI_DEBUG
-        driver_remove_file(&iwl_driver.driver, &driver_attr_debug_level);
-#endif
         pci_unregister_driver(&iwl_driver);
         iwl4965_rate_control_unregister();
 }