iwlwifi: move sysfs status entry to debugfs

This patch moves priv->status sysfs entry to debugfs. It is for
debugging only anyway.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwlwifi/iwl-agn.c

@@ -3652,16 +3652,6 @@ static ssize_t show_statistics(struct device *d,
 
 static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL);
 
-static ssize_t show_status(struct device *d,
-			   struct device_attribute *attr, char *buf)
-{
-	struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
-	if (!iwl_is_alive(priv))
-		return -EAGAIN;
-	return sprintf(buf, "0x%08x\n", (int)priv->status);
-}
-
-static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
 
 /*****************************************************************************
  *
@@ -3717,7 +3707,6 @@ static struct attribute *iwl_sysfs_entries[] = {
 	&dev_attr_power_level.attr,
 	&dev_attr_retry_rate.attr,
 	&dev_attr_statistics.attr,
-	&dev_attr_status.attr,
 	&dev_attr_temperature.attr,
 	&dev_attr_tx_power.attr,
 #ifdef CONFIG_IWLWIFI_DEBUG

drivers/net/wireless/iwlwifi/iwl-debug.h

@@ -61,6 +61,7 @@ struct iwl_debugfs {
 		struct dentry *file_tx_statistics;
 		struct dentry *file_log_event;
 		struct dentry *file_channels;
+		struct dentry *file_status;
 	} dbgfs_data_files;
 	struct dir_rf_files {
 		struct dentry *file_disable_sensitivity;

drivers/net/wireless/iwlwifi/iwl-debugfs.c

@@ -63,6 +63,14 @@
 		goto err;                                               \
 } while (0)
 
+#define DEBUGFS_ADD_X32(name, parent, ptr) do {                        \
+	dbgfs->dbgfs_##parent##_files.file_##name =                     \
+	debugfs_create_x32(#name, 0444, dbgfs->dir_##parent, ptr);     \
+	if (IS_ERR(dbgfs->dbgfs_##parent##_files.file_##name)		\
+			|| !dbgfs->dbgfs_##parent##_files.file_##name)	\
+		goto err;                                               \
+} while (0)
+
 #define DEBUGFS_REMOVE(name)  do {              \
 	debugfs_remove(name);                   \
 	name = NULL;                            \
@@ -420,7 +428,6 @@ static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
 	return ret;
 }
 
-
 DEBUGFS_READ_WRITE_FILE_OPS(sram);
 DEBUGFS_WRITE_FILE_OPS(log_event);
 DEBUGFS_READ_FILE_OPS(eeprom);
@@ -462,6 +469,7 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
 	DEBUGFS_ADD_FILE(rx_statistics, data);
 	DEBUGFS_ADD_FILE(tx_statistics, data);
 	DEBUGFS_ADD_FILE(channels, data);
+	DEBUGFS_ADD_X32(status, data, (u32 *)&priv->status);
 	DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal);
 	DEBUGFS_ADD_BOOL(disable_chain_noise, rf,
 			 &priv->disable_chain_noise_cal);