iwlwifi: clean up debugfs code

The debugfs code can be made a whole lot more
efficient by using debugfs_remove_recursive(),
the large chunk of variables can completely go
away and by moving two variables we no longer
need to allocate an extra chunk of memory.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

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

@@ -67,63 +67,6 @@ do {                                            			\
 			       DUMP_PREFIX_OFFSET, 16, 1, p, len, 1);	\
 } while (0)
 
-#ifdef CONFIG_IWLWIFI_DEBUGFS
-struct iwl_debugfs {
-	const char *name;
-	struct dentry *dir_drv;
-	struct dentry *dir_data;
-	struct dentry *dir_debug;
-	struct dentry *dir_rf;
-	struct dir_data_files {
-		struct dentry *file_sram;
-		struct dentry *file_nvm;
-		struct dentry *file_stations;
-		struct dentry *file_log_event;
-		struct dentry *file_channels;
-		struct dentry *file_status;
-		struct dentry *file_interrupt;
-		struct dentry *file_qos;
-		struct dentry *file_thermal_throttling;
-		struct dentry *file_led;
-		struct dentry *file_disable_ht40;
-		struct dentry *file_sleep_level_override;
-		struct dentry *file_current_sleep_command;
-	} dbgfs_data_files;
-	struct dir_rf_files {
-		struct dentry *file_disable_sensitivity;
-		struct dentry *file_disable_chain_noise;
-		struct dentry *file_disable_tx_power;
-	} dbgfs_rf_files;
-	struct dir_debug_files {
-		struct dentry *file_rx_statistics;
-		struct dentry *file_tx_statistics;
-		struct dentry *file_traffic_log;
-		struct dentry *file_rx_queue;
-		struct dentry *file_tx_queue;
-		struct dentry *file_ucode_rx_stats;
-		struct dentry *file_ucode_tx_stats;
-		struct dentry *file_ucode_general_stats;
-		struct dentry *file_sensitivity;
-		struct dentry *file_chain_noise;
-		struct dentry *file_tx_power;
-		struct dentry *file_power_save_status;
-		struct dentry *file_clear_ucode_statistics;
-		struct dentry *file_clear_traffic_statistics;
-		struct dentry *file_csr;
-		struct dentry *file_ucode_tracing;
-		struct dentry *file_fh_reg;
-		struct dentry *file_missed_beacon;
-		struct dentry *file_internal_scan;
-		struct dentry *file_plcp_delta;
-	} dbgfs_debug_files;
-	u32 sram_offset;
-	u32 sram_len;
-};
-
-int iwl_dbgfs_register(struct iwl_priv *priv, const char *name);
-void iwl_dbgfs_unregister(struct iwl_priv *priv);
-#endif
-
 #else
 #define IWL_DEBUG(__priv, level, fmt, args...)
 #define IWL_DEBUG_LIMIT(__priv, level, fmt, args...)
@@ -132,9 +75,10 @@ static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level,
 {}
 #endif				/* CONFIG_IWLWIFI_DEBUG */
 
-
-
-#ifndef CONFIG_IWLWIFI_DEBUGFS
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+int iwl_dbgfs_register(struct iwl_priv *priv, const char *name);
+void iwl_dbgfs_unregister(struct iwl_priv *priv);
+#else
 static inline int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
 {
 	return 0;

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

@@ -1309,7 +1309,8 @@ struct iwl_priv {
 	u16 rx_traffic_idx;
 	u8 *tx_traffic;
 	u8 *rx_traffic;
-	struct iwl_debugfs *dbgfs;
+	struct dentry *debugfs_dir;
+	u32 dbgfs_sram_offset, dbgfs_sram_len;
 #endif /* CONFIG_IWLWIFI_DEBUGFS */
 #endif /* CONFIG_IWLWIFI_DEBUG */