Staging: rtl8192e: remove kernel version checks

This removes a lot of code that is never built in to the driver.

The size of the built code after this patch is identical to before it.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/rtl8192e/ieee80211.h

@@ -27,12 +27,7 @@
 #include <linux/kernel.h>   /* ARRAY_SIZE */
 #include <linux/version.h>
 #include <linux/module.h>
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
 #include <linux/jiffies.h>
-#else
-#include <linux/jffs.h>
-#include <linux/tqueue.h>
-#endif
 #include <linux/timer.h>
 #include <linux/sched.h>
 
@@ -43,12 +38,6 @@
 #include "ieee80211/rtl819x_BA.h"
 #include "ieee80211/rtl819x_TS.h"
 
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20))
-#ifndef bool
-typedef enum{false = 0, true} bool;
-#endif
-#endif
-
 #ifndef IW_MODE_MONITOR
 #define IW_MODE_MONITOR 6
 #endif
@@ -57,25 +46,6 @@ typedef enum{false = 0, true} bool;
 #define IWEVCUSTOM 0x8c02
 #endif
 
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
-#ifndef __bitwise
-#define __bitwise __attribute__((bitwise))
-#endif
-typedef __u16  __le16;
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,27))
-struct iw_spy_data{
-	/* --- Standard spy support --- */
-	int 			spy_number;
-	u_char 			spy_address[IW_MAX_SPY][ETH_ALEN];
-	struct iw_quality	spy_stat[IW_MAX_SPY];
-	/* --- Enhanced spy support (event) */
-	struct iw_quality	spy_thr_low; /* Low threshold */
-	struct iw_quality	spy_thr_high; /* High threshold */
-	u_char			spy_thr_under[IW_MAX_SPY];
-};
-#endif
-#endif
-
 #ifndef container_of
 /**
  * container_of - cast a member of a structure out to the containing structure
@@ -425,46 +395,8 @@ typedef struct ieee_param {
 #define IW_QUAL_NOISE_UPDATED  0x4
 #endif
 
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
-static inline void tq_init(struct tq_struct * task, void(*func)(void *), void *data)
-{
-	task->routine = func;
-	task->data 	= data;
-	//task->next = NULL;
-	INIT_LIST_HEAD(&task->list);
-	task->sync = 0;
-}
-#endif
-
-// linux under 2.6.9 release may not support it, so modify it for common use
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,9))
-//#define MSECS(t)	(1000 * ((t) / HZ) + 1000 * ((t) % HZ) / HZ)
-#define MSECS(t)	(HZ * ((t) / 1000) + (HZ * ((t) % 1000)) / 1000)
-static inline unsigned long msleep_interruptible_rsl(unsigned int msecs)
-{
-         unsigned long timeout = MSECS(msecs) + 1;
-
-         while (timeout) {
-                 set_current_state(TASK_INTERRUPTIBLE);
-                 timeout = schedule_timeout(timeout);
-         }
-         return timeout;
-}
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,31))
-static inline void msleep(unsigned int msecs)
-{
-         unsigned long timeout = MSECS(msecs) + 1;
-
-         while (timeout) {
-                 set_current_state(TASK_UNINTERRUPTIBLE);
-                 timeout = schedule_timeout(timeout);
-         }
-}
-#endif
-#else
 #define MSECS(t) msecs_to_jiffies(t)
 #define msleep_interruptible_rsl  msleep_interruptible
-#endif
 
 #define IEEE80211_DATA_LEN		2304
 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
@@ -1736,21 +1668,6 @@ enum ieee80211_state {
 #define IEEE80211_52GHZ_CHANNELS (IEEE80211_52GHZ_MAX_CHANNEL - \
                                   IEEE80211_52GHZ_MIN_CHANNEL + 1)
 
-#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,11))
-extern inline int is_multicast_ether_addr(const u8 *addr)
-{
-        return ((addr[0] != 0xff) && (0x01 & addr[0]));
-}
-#endif
-
-#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,13))
-extern inline int is_broadcast_ether_addr(const u8 *addr)
-{
-	return ((addr[0] == 0xff) && (addr[1] == 0xff) && (addr[2] == 0xff) &&   \
-		(addr[3] == 0xff) && (addr[4] == 0xff) && (addr[5] == 0xff));
-}
-#endif
-
 typedef struct tx_pending_t{
 	int frag;
 	struct ieee80211_txb *txb;
@@ -1827,11 +1744,7 @@ typedef struct _RT_POWER_SAVE_CONTROL
 	bool				bIPSModeBackup;
 	bool				bSwRfProcessing;
 	RT_RF_POWER_STATE	eInactivePowerState;
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	struct work_struct 	InactivePsWorkItem;
-#else
-	struct tq_struct	InactivePsWorkItem;
-#endif
 	struct timer_list	InactivePsTimer;
 
 	// Return point for join action
@@ -2198,36 +2111,16 @@ struct ieee80211_device {
 
 	/* used if IEEE_SOFTMAC_BEACONS is set */
 	struct timer_list beacon_timer;
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
+
         struct work_struct associate_complete_wq;
         struct work_struct associate_procedure_wq;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
         struct delayed_work softmac_scan_wq;
         struct delayed_work associate_retry_wq;
 	 struct delayed_work start_ibss_wq;
 	 struct delayed_work hw_wakeup_wq;
 	struct delayed_work hw_sleep_wq;
-#else
-        struct work_struct softmac_scan_wq;
-        struct work_struct associate_retry_wq;
-	struct work_struct start_ibss_wq;
-	struct work_struct hw_wakeup_wq;
-	struct work_struct hw_sleep_wq;
-#endif
         struct work_struct wx_sync_scan_wq;
         struct workqueue_struct *wq;
-#else
-	/* used for periodly scan */
-	struct timer_list scan_timer;
-
-	struct tq_struct associate_complete_wq;
-	struct tq_struct associate_retry_wq;
-	struct tq_struct start_ibss_wq;
-	struct tq_struct associate_procedure_wq;
-	struct tq_struct softmac_scan_wq;
-	struct tq_struct wx_sync_scan_wq;
-
-#endif
         // Qos related. Added by Annie, 2005-11-01.
         //STA_QOS  StaQos;
 
@@ -2413,11 +2306,7 @@ struct ieee80211_device {
 
 static inline void *ieee80211_priv(struct net_device *dev)
 {
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	return ((struct ieee80211_device *)netdev_priv(dev))->priv;
-#else
-	return ((struct ieee80211_device *)dev->priv)->priv;
-#endif
 }
 
 extern inline int ieee80211_is_empty_essid(const char *essid, int essid_len)
@@ -2670,11 +2559,7 @@ extern int ieee80211_wx_get_freq(struct ieee80211_device *ieee, struct iw_reques
 			     union iwreq_data *wrqu, char *b);
 
 //extern void ieee80211_wx_sync_scan_wq(struct ieee80211_device *ieee);
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
 extern void ieee80211_wx_sync_scan_wq(struct work_struct *work);
-#else
- extern void ieee80211_wx_sync_scan_wq(struct ieee80211_device *ieee);
-#endif
 
 
 extern int ieee80211_wx_set_rawtx(struct ieee80211_device *ieee,

drivers/staging/rtl8192e/r8192E.h

@@ -39,9 +39,6 @@
 #include <linux/random.h>
 #include <linux/version.h>
 #include <asm/io.h>
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27))
-#include <asm/semaphore.h>
-#endif
 #include "ieee80211.h"
 
 
@@ -1020,11 +1017,7 @@ typedef struct r8192_priv
 	spinlock_t irq_th_lock;
 	spinlock_t tx_lock;
 	spinlock_t rf_ps_lock;
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,16))
-	struct semaphore mutex;
-#else
         struct mutex mutex;
-#endif
 	spinlock_t rf_lock; //used to lock rf write operation added by wb
 	spinlock_t ps_lock;
 
@@ -1163,11 +1156,7 @@ typedef struct r8192_priv
 /* modified by davad for Rx process */
        struct sk_buff_head rx_queue;
        struct sk_buff_head skb_queue;
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
-	struct tq_struct qos_activate;
-#else
        struct work_struct qos_activate;
-#endif
 	short  tx_urb_index;
 	atomic_t tx_pending[0x10];//UART_PRIORITY+1
 
@@ -1196,11 +1185,7 @@ typedef struct r8192_priv
 
 	struct 	ChnlAccessSetting  ChannelAccessSetting;
 
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	struct work_struct reset_wq;
-#else
-	struct tq_struct reset_wq;
-#endif
 
 /**********************************************************/
 //for rtl819xPci
@@ -1379,32 +1364,13 @@ typedef struct r8192_priv
 	u8		InitialGainOperateType;
 
 	//define work item by amy 080526
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
 	struct delayed_work update_beacon_wq;
 	struct delayed_work watch_dog_wq;
 	struct delayed_work txpower_tracking_wq;
 	struct delayed_work rfpath_check_wq;
 	struct delayed_work gpio_change_rf_wq;
 	struct delayed_work initialgain_operate_wq;
-#else
-	struct work_struct update_beacon_wq;
-	struct work_struct watch_dog_wq;
-	struct work_struct txpower_tracking_wq;
-	struct work_struct rfpath_check_wq;
-	struct work_struct gpio_change_rf_wq;
-	struct work_struct initialgain_operate_wq;
-#endif
 	struct workqueue_struct *priv_wq;
-#else
-	struct tq_struct update_beacon_wq;
-	/* used for periodly scan */
-	struct tq_struct txpower_tracking_wq;
-	struct tq_struct rfpath_check_wq;
-	struct tq_struct watch_dog_wq;
-	struct tq_struct gpio_change_rf_wq;
-	struct tq_struct initialgain_operate_wq;
-#endif
 }r8192_priv;
 
 // for rtl8187
@@ -1540,11 +1506,7 @@ void CamPrintDbgReg(struct net_device* dev);
 extern	void	dm_cck_txpower_adjust(struct net_device *dev,bool  binch14);
 extern void firmware_init_param(struct net_device *dev);
 extern RT_STATUS cmpk_message_handle_tx(struct net_device *dev, u8* codevirtualaddress, u32 packettype, u32 buffer_len);
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
 void rtl8192_hw_wakeup_wq (struct work_struct *work);
-#else
-void rtl8192_hw_wakeup_wq(struct net_device *dev);
-#endif
 
 short rtl8192_is_tx_queue_empty(struct net_device *dev);
 #ifdef ENABLE_IPS

drivers/staging/rtl8192e/r8192E_dm.c

@@ -69,11 +69,7 @@ extern void hal_dm_watchdog(struct net_device *dev);
 
 
 extern	void	init_rate_adaptive(struct net_device *dev);
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
 extern	void	dm_txpower_trackingcallback(struct work_struct *work);
-#else
-extern	void	dm_txpower_trackingcallback(struct net_device *dev);
-#endif
 
 extern	void	dm_cck_txpower_adjust(struct net_device *dev,bool  binch14);
 extern	void	dm_restore_dynamic_mechanism_state(struct net_device *dev);
@@ -89,22 +85,14 @@ extern	void dm_force_tx_fw_info(struct net_device *dev,
 										u32		force_value);
 extern	void	dm_init_edca_turbo(struct net_device *dev);
 extern	void	dm_rf_operation_test_callback(unsigned long data);
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
 extern	void	dm_rf_pathcheck_workitemcallback(struct work_struct *work);
-#else
-extern	void	dm_rf_pathcheck_workitemcallback(struct net_device *dev);
-#endif
 extern	void dm_fsync_timer_callback(unsigned long data);
 extern	void dm_check_fsync(struct net_device *dev);
 extern	void	dm_shadow_init(struct net_device *dev);
 extern	void dm_initialize_txpower_tracking(struct net_device *dev);
 
 #ifdef RTL8192E
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
 extern  void    dm_gpio_change_rf_callback(struct work_struct *work);
-#else
-extern  void    dm_gpio_change_rf_callback(struct net_device *dev);
-#endif
 #endif
 
 
@@ -217,11 +205,7 @@ void init_hal_dm(struct net_device *dev)
 	dm_init_rxpath_selection(dev);
 	dm_init_ctstoself(dev);
 #ifdef RTL8192E
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
 	INIT_DELAYED_WORK(&priv->gpio_change_rf_wq,  dm_gpio_change_rf_callback);
-#else
-	INIT_WORK(&priv->gpio_change_rf_wq, (void(*)(void*)) dm_gpio_change_rf_callback,dev);
-#endif
 #endif
 
 }	// InitHalDm
@@ -1021,19 +1005,11 @@ static void dm_TXPowerTrackingCallback_ThermalMeter(struct net_device * dev)
 	priv->txpower_count = 0;
 }
 #endif
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
 void dm_txpower_trackingcallback(struct work_struct *work)
 {
 	struct delayed_work *dwork = container_of(work,struct delayed_work,work);
        struct r8192_priv *priv = container_of(dwork,struct r8192_priv,txpower_tracking_wq);
        struct net_device *dev = priv->ieee80211->dev;
-#else
-extern	void	dm_txpower_trackingcallback(struct net_device *dev)
-{
-#ifndef RTL8190P
-	struct r8192_priv *priv = ieee80211_priv(dev);
-#endif
-#endif
 
 #ifdef RTL8190P
 	dm_TXPowerTrackingCallback_TSSI(dev);
@@ -1599,15 +1575,7 @@ static void dm_CheckTXPowerTracking_TSSI(struct net_device *dev)
 
 	 if(tx_power_track_counter > 90)
 	 	{
-	 		#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
 				queue_delayed_work(priv->priv_wq,&priv->txpower_tracking_wq,0);
-			#else
-				#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-				schedule_task(&priv->txpower_tracking_wq);
-				#else
-				queue_work(priv->priv_wq,&priv->txpower_tracking_wq);
-				#endif
-			#endif
 		tx_power_track_counter =0;
 	 	}
 
@@ -1646,15 +1614,7 @@ static void dm_CheckTXPowerTracking_ThermalMeter(struct net_device *dev)
 	else
 		{
 		//DbgPrint("Schedule TxPowerTrackingWorkItem\n");
-			#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
 			queue_delayed_work(priv->priv_wq,&priv->txpower_tracking_wq,0);
-			#else
-				#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-				schedule_task(&priv->txpower_tracking_wq);
-				#else
-				queue_work(priv->priv_wq,&priv->txpower_tracking_wq);
-				#endif
-			#endif
 		TM_Trigger = 0;
 		}
 }
@@ -2880,15 +2840,7 @@ static void dm_check_rfctrl_gpio(struct net_device * dev)
 	return;
 #endif
 #ifdef RTL8192E
-	#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
 		queue_delayed_work(priv->priv_wq,&priv->gpio_change_rf_wq,0);
-        #else
-                #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-			schedule_task(&priv->gpio_change_rf_wq);
-                #else
-		        queue_work(priv->priv_wq,&priv->gpio_change_rf_wq);
-                #endif
-	#endif
 #endif
 
 }	/* dm_CheckRfCtrlGPIO */
@@ -2949,17 +2901,11 @@ static	void	dm_check_pbc_gpio(struct net_device *dev)
  *	02/21/2008	MHC		Create Version 0.
  *
  *---------------------------------------------------------------------------*/
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
 void dm_gpio_change_rf_callback(struct work_struct *work)
 {
 	struct delayed_work *dwork = container_of(work,struct delayed_work,work);
        struct r8192_priv *priv = container_of(dwork,struct r8192_priv,gpio_change_rf_wq);
        struct net_device *dev = priv->ieee80211->dev;
-#else
-extern	void	dm_gpio_change_rf_callback(struct net_device *dev)
-{
-	struct r8192_priv *priv = ieee80211_priv(dev);
-#endif
 	u8 tmp1byte;
 	RT_RF_POWER_STATE	eRfPowerStateToSet;
 	bool bActuallySet = false;
@@ -3025,17 +2971,11 @@ extern	void	dm_gpio_change_rf_callback(struct net_device *dev)
  *	01/30/2008	MHC		Create Version 0.
  *
  *---------------------------------------------------------------------------*/
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
 void dm_rf_pathcheck_workitemcallback(struct work_struct *work)
 {
 	struct delayed_work *dwork = container_of(work,struct delayed_work,work);
        struct r8192_priv *priv = container_of(dwork,struct r8192_priv,rfpath_check_wq);
        struct net_device *dev =priv->ieee80211->dev;
-#else
-extern	void	dm_rf_pathcheck_workitemcallback(struct net_device *dev)
-{
-	struct r8192_priv *priv = ieee80211_priv(dev);
-#endif
 	//bool bactually_set = false;
 	u8 rfpath = 0, i;
 
@@ -3360,15 +3300,7 @@ static void dm_rxpath_sel_byrssi(struct net_device * dev)
 static	void	dm_check_rx_path_selection(struct net_device *dev)
 {
 	struct r8192_priv *priv = ieee80211_priv(dev);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
 	queue_delayed_work(priv->priv_wq,&priv->rfpath_check_wq,0);
-#else
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-	schedule_task(&priv->rfpath_check_wq);
-#else
-	queue_work(priv->priv_wq,&priv->rfpath_check_wq);
-#endif
-#endif
 }	/* dm_CheckRxRFPath */
 
 

drivers/staging/rtl8192e/r8192E_dm.h

@@ -280,11 +280,7 @@ extern void hal_dm_watchdog(struct net_device *dev);
 
 
 extern  void    init_rate_adaptive(struct net_device *dev);
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
 extern  void    dm_txpower_trackingcallback(struct work_struct *work);
-#else
-extern  void    dm_txpower_trackingcallback(struct net_device *dev);
-#endif
 
 extern  void    dm_cck_txpower_adjust(struct net_device *dev,bool  binch14);
 extern  void    dm_restore_dynamic_mechanism_state(struct net_device *dev);
@@ -300,11 +296,7 @@ extern  void dm_force_tx_fw_info(struct net_device *dev,
                                                                                 u32             force_value);
 extern  void    dm_init_edca_turbo(struct net_device *dev);
 extern  void    dm_rf_operation_test_callback(unsigned long data);
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
 extern  void    dm_rf_pathcheck_workitemcallback(struct work_struct *work);
-#else
-extern  void    dm_rf_pathcheck_workitemcallback(struct net_device *dev);
-#endif
 extern  void dm_fsync_timer_callback(unsigned long data);
 #if 0
 extern  bool    dm_check_lbus_status(struct net_device *dev);

drivers/staging/rtl8192e/r8192E_wx.c

@@ -1008,7 +1008,6 @@ static int r8192_wx_set_enc_ext(struct net_device *dev,
                                         union iwreq_data *wrqu, char *extra)
 {
 	int ret=0;
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	struct r8192_priv *priv = ieee80211_priv(dev);
 	struct ieee80211_device* ieee = priv->ieee80211;
 
@@ -1093,7 +1092,6 @@ static int r8192_wx_set_enc_ext(struct net_device *dev,
 
 end_hw_sec:
 	up(&priv->wx_sem);
-#endif
 	return ret;
 
 }
@@ -1102,13 +1100,11 @@ static int r8192_wx_set_auth(struct net_device *dev,
                                         union iwreq_data *data, char *extra)
 {
 	int ret=0;
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	//printk("====>%s()\n", __FUNCTION__);
 	struct r8192_priv *priv = ieee80211_priv(dev);
 	down(&priv->wx_sem);
 	ret = ieee80211_wx_set_auth(priv->ieee80211, info, &(data->param), extra);
 	up(&priv->wx_sem);
-#endif
 	return ret;
 }
 
@@ -1119,12 +1115,10 @@ static int r8192_wx_set_mlme(struct net_device *dev,
 	//printk("====>%s()\n", __FUNCTION__);
 
 	int ret=0;
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	struct r8192_priv *priv = ieee80211_priv(dev);
 	down(&priv->wx_sem);
 	ret = ieee80211_wx_set_mlme(priv->ieee80211, info, wrqu, extra);
 	up(&priv->wx_sem);
-#endif
 	return ret;
 }
 #endif
@@ -1134,18 +1128,12 @@ static int r8192_wx_set_gen_ie(struct net_device *dev,
 {
 	   //printk("====>%s(), len:%d\n", __FUNCTION__, data->length);
 	int ret=0;
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
         struct r8192_priv *priv = ieee80211_priv(dev);
         down(&priv->wx_sem);
-#if 1
         ret = ieee80211_wx_set_gen_ie(priv->ieee80211, extra, data->data.length);
-#endif
         up(&priv->wx_sem);
 	//printk("<======%s(), ret:%d\n", __FUNCTION__, ret);
-#endif
         return ret;
-
-
 }
 
 static int dummy(struct net_device *dev, struct iw_request_info *a,
@@ -1325,11 +1313,7 @@ struct iw_statistics *r8192_get_wireless_stats(struct net_device *dev)
 		wstats->qual.qual = 0;
 		wstats->qual.level = 0;
 		wstats->qual.noise = 0;
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,14))
 		wstats->qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
-#else
-		wstats->qual.updated = 0x0f;
-#endif
 		return wstats;
 	}
 
@@ -1341,11 +1325,7 @@ struct iw_statistics *r8192_get_wireless_stats(struct net_device *dev)
 	wstats->qual.level = tmp_level;
 	wstats->qual.qual = tmp_qual;
 	wstats->qual.noise = tmp_noise;
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,14))
 	wstats->qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
-#else
-	wstats->qual.updated = 0x0f;
-#endif
 	return wstats;
 }
 //#endif

drivers/staging/rtl8192e/r8192_pm.c

@@ -55,26 +55,12 @@ int rtl8192E_suspend (struct pci_dev *pdev, pm_message_t state)
         write_nic_dword(dev,ISR,read_nic_dword(dev, ISR));
 
 	/* need to  free DM related functions */
-#if LINUX_VERSION_CODE >=KERNEL_VERSION(2,6,20)
 	cancel_work_sync(&priv->reset_wq);
-#else
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
-	cancel_delayed_work(&priv->reset_wq);
-#endif
-#endif
 	del_timer_sync(&priv->fsync_timer);
 	del_timer_sync(&priv->watch_dog_timer);
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	cancel_delayed_work(&priv->watch_dog_wq);
 	cancel_delayed_work(&priv->update_beacon_wq);
-#endif
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
 	cancel_work_sync(&priv->qos_activate);
-#else
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
-	cancel_delayed_work(&priv->qos_activate);
-#endif
-#endif
 
 	/* TODO
 #if ((DEV_BUS_TYPE == PCI_INTERFACE) && (HAL_CODE_BASE == RTL8192))

drivers/staging/rtl8192e/r819xE_firmware.c

@@ -20,9 +20,7 @@
 #include "r819xE_firmware_img.h"
 #endif
 #include "r819xE_firmware.h"
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 #include <linux/firmware.h>
-#endif
 
 void firmware_init_param(struct net_device *dev)
 {
@@ -254,11 +252,7 @@ bool init_firmware(struct net_device *dev)
 	 * Download boot, main, and data image for System reset.
 	 * Download data image for firmware reseta
 	 */
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-	priv->firmware_source = FW_SOURCE_HEADER_FILE;
-#else
 	priv->firmware_source = FW_SOURCE_IMG_FILE;
-#endif
 	for(init_step = starting_state; init_step <= FW_INIT_STEP2_DATA; init_step++) {
 		/*
 		 * Open Image file, and map file to contineous memory if open file success.
@@ -268,7 +262,6 @@ bool init_firmware(struct net_device *dev)
 			switch(priv->firmware_source) {
 				case FW_SOURCE_IMG_FILE:
 				{
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 					if(pfirmware->firmware_buf_size[init_step] == 0) {
 						rc = request_firmware(&fw_entry, fw_name[init_step],&priv->pdev->dev);
 						if(rc < 0 ) {
@@ -300,15 +293,12 @@ bool init_firmware(struct net_device *dev)
 						}
 						//pfirmware->firmware_buf_size = file_length;
 
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 						if(rst_opt == OPT_SYSTEM_RESET) {
 							release_firmware(fw_entry);
 						}
-#endif
 					}
 					mapped_file = pfirmware->firmware_buf[init_step];
 					file_length = pfirmware->firmware_buf_size[init_step];
-#endif
 					break;
 				}
 				case FW_SOURCE_HEADER_FILE: