From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Sat, 13 Jun 2009 16:35:04 +0000 (+0200)
Subject: Staging: rtl8192su: remove kernel version compatibility wrappers
X-Git-Tag: MMI-PSA29.97-13-9~26941^2~615
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1ec9e48dbfe29e4919a9ca3d0c692c982f484c73;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git

Staging: rtl8192su: remove kernel version compatibility wrappers

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/staging/rtl8192su/ieee80211/dot11d.c b/drivers/staging/rtl8192su/ieee80211/dot11d.c
index e5f2dedc4372..eebcb7f01c96 100644
--- a/drivers/staging/rtl8192su/ieee80211/dot11d.c
+++ b/drivers/staging/rtl8192su/ieee80211/dot11d.c
@@ -218,7 +218,7 @@ int ToLegalChannel(
 
 	return default_chn;
 }
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+
 EXPORT_SYMBOL(Dot11d_Init);
 EXPORT_SYMBOL(Dot11d_Reset);
 EXPORT_SYMBOL(Dot11d_UpdateCountryIe);
@@ -226,14 +226,5 @@ EXPORT_SYMBOL(DOT11D_GetMaxTxPwrInDbm);
 EXPORT_SYMBOL(DOT11D_ScanComplete);
 EXPORT_SYMBOL(IsLegalChannel);
 EXPORT_SYMBOL(ToLegalChannel);
-#else
-EXPORT_SYMBOL_NOVERS(Dot11d_Init);
-EXPORT_SYMBOL_NOVERS(Dot11d_Reset);
-EXPORT_SYMBOL_NOVERS(Dot11d_UpdateCountryIe);
-EXPORT_SYMBOL_NOVERS(DOT11D_GetMaxTxPwrInDbm);
-EXPORT_SYMBOL_NOVERS(DOT11D_ScanComplete);
-EXPORT_SYMBOL_NOVERS(IsLegalChannel);
-EXPORT_SYMBOL_NOVERS(ToLegalChannel);
-#endif
 
 #endif
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211.h b/drivers/staging/rtl8192su/ieee80211/ieee80211.h
index 5e3a2cbed2b1..7d97300924a6 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211.h
+++ b/drivers/staging/rtl8192su/ieee80211/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 "rtl819x_BA.h"
 #include "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
@@ -456,46 +426,8 @@ 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
@@ -1787,21 +1719,6 @@ 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;
@@ -1879,11 +1796,7 @@ typedef struct _RT_POWER_SAVE_CONTROL
 	bool				bHaltAdapterClkRQ;
 	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
@@ -2290,41 +2203,17 @@ 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;
 	struct delayed_work link_change_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;
-	struct work_struct link_change_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;
-	struct tq_struct hw_wakeup_wq;
-	struct tq_struct hw_sleep_wq;
-	struct tq_struct link_change_wq;
 
-#endif
         // Qos related. Added by Annie, 2005-11-01.
         //STA_QOS  StaQos;
 
@@ -2512,11 +2401,7 @@ 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)
@@ -2769,12 +2654,7 @@ 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,
 			       struct iw_request_info *info,
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt.c
index 199ee1695ad3..14ffd76e0d76 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt.c
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt.c
@@ -55,11 +55,7 @@ void ieee80211_crypt_deinit_entries(struct ieee80211_device *ieee,
 
 		if (entry->ops) {
 			entry->ops->deinit(entry->priv);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
 			module_put(entry->ops->owner);
-#else
-			__MOD_DEC_USE_COUNT(entry->ops->owner);
-#endif
 		}
 		kfree(entry);
 	}
@@ -251,7 +247,6 @@ static void __exit ieee80211_crypto_deinit(void)
 	kfree(hcrypt);
 }
 
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
 EXPORT_SYMBOL(ieee80211_crypt_deinit_entries);
 EXPORT_SYMBOL(ieee80211_crypt_deinit_handler);
 EXPORT_SYMBOL(ieee80211_crypt_delayed_deinit);
@@ -259,15 +254,6 @@ EXPORT_SYMBOL(ieee80211_crypt_delayed_deinit);
 EXPORT_SYMBOL(ieee80211_register_crypto_ops);
 EXPORT_SYMBOL(ieee80211_unregister_crypto_ops);
 EXPORT_SYMBOL(ieee80211_get_crypto_ops);
-#else
-EXPORT_SYMBOL_NOVERS(ieee80211_crypt_deinit_entries);
-EXPORT_SYMBOL_NOVERS(ieee80211_crypt_deinit_handler);
-EXPORT_SYMBOL_NOVERS(ieee80211_crypt_delayed_deinit);
-
-EXPORT_SYMBOL_NOVERS(ieee80211_register_crypto_ops);
-EXPORT_SYMBOL_NOVERS(ieee80211_unregister_crypto_ops);
-EXPORT_SYMBOL_NOVERS(ieee80211_get_crypto_ops);
-#endif
 
 module_init(ieee80211_crypto_init);
 module_exit(ieee80211_crypto_deinit);
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt.h b/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt.h
index a84df4b76489..b58a3bcc0dc0 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt.h
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt.h
@@ -82,12 +82,5 @@ void ieee80211_crypt_deinit_entries(struct ieee80211_device *, int);
 void ieee80211_crypt_deinit_handler(unsigned long);
 void ieee80211_crypt_delayed_deinit(struct ieee80211_device *ieee,
 				    struct ieee80211_crypt_data **crypt);
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
-#define offset_in_page(p) ((unsigned long)(p) & ~PAGE_MASK)
-#endif
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,31))
-#define crypto_alloc_tfm crypto_alloc_tfm_rsl
-#define crypto_free_tfm crypto_free_tfm_rsl
-#endif
 
 #endif
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_ccmp.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_ccmp.c
index a86c26eceb34..e9225fef427c 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_ccmp.c
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_ccmp.c
@@ -24,18 +24,8 @@
 
 #include "ieee80211.h"
 
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
-#include "rtl_crypto.h"
-#else
 #include <linux/crypto.h>
-#endif
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
-    #include <asm/scatterlist.h>
-#else
-    #include <linux/scatterlist.h>
-#endif
-//#include <asm/scatterlist.h>
+#include <linux/scatterlist.h>
 
 MODULE_AUTHOR("Jouni Malinen");
 MODULE_DESCRIPTION("Host AP crypt: CCMP");
@@ -75,21 +65,7 @@ struct ieee80211_ccmp_data {
 void ieee80211_ccmp_aes_encrypt(struct crypto_tfm *tfm,
 			     const u8 pt[16], u8 ct[16])
 {
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
-	struct scatterlist src, dst;
-
-	src.page = virt_to_page(pt);
-	src.offset = offset_in_page(pt);
-	src.length = AES_BLOCK_LEN;
-
-	dst.page = virt_to_page(ct);
-	dst.offset = offset_in_page(ct);
-	dst.length = AES_BLOCK_LEN;
-
-	crypto_cipher_encrypt(tfm, &dst, &src, AES_BLOCK_LEN);
-#else
 	crypto_cipher_encrypt_one((void*)tfm, ct, pt);
-#endif
 }
 
 static void * ieee80211_ccmp_init(int key_idx)
@@ -102,32 +78,20 @@ static void * ieee80211_ccmp_init(int key_idx)
 	memset(priv, 0, sizeof(*priv));
 	priv->key_idx = key_idx;
 
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
-	priv->tfm = crypto_alloc_tfm("aes", 0);
-	if (priv->tfm == NULL) {
-		printk(KERN_DEBUG "ieee80211_crypt_ccmp: could not allocate "
-		       "crypto API aes\n");
-		goto fail;
-	}
-       #else
-       priv->tfm = (void*)crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
+	priv->tfm = (void *)crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->tfm)) {
 		printk(KERN_DEBUG "ieee80211_crypt_ccmp: could not allocate "
 		       "crypto API aes\n");
 		priv->tfm = NULL;
 		goto fail;
 	}
-	#endif
+
 	return priv;
 
 fail:
 	if (priv) {
 		if (priv->tfm)
-			#if(LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21))
-			crypto_free_tfm(priv->tfm);
-                    #else
 			crypto_free_cipher((void*)priv->tfm);
-		      #endif
 		kfree(priv);
 	}
 
@@ -138,12 +102,9 @@ fail:
 static void ieee80211_ccmp_deinit(void *priv)
 {
 	struct ieee80211_ccmp_data *_priv = priv;
+
 	if (_priv && _priv->tfm)
-#if(LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21))
-		crypto_free_tfm(_priv->tfm);
-#else
 		crypto_free_cipher((void*)_priv->tfm);
-#endif
 	kfree(priv);
 }
 
@@ -524,11 +485,7 @@ static void __exit ieee80211_crypto_ccmp_exit(void)
 	ieee80211_unregister_crypto_ops(&ieee80211_crypt_ccmp);
 }
 
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
 EXPORT_SYMBOL(ieee80211_ccmp_null);
-#else
-EXPORT_SYMBOL_NOVERS(ieee80211_ccmp_null);
-#endif
 
 module_init(ieee80211_crypto_ccmp_init);
 module_exit(ieee80211_crypto_ccmp_exit);
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_tkip.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_tkip.c
index b031b6495247..6662d55d2215 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_tkip.c
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_tkip.c
@@ -22,23 +22,9 @@
 #include <asm/string.h>
 
 #include "ieee80211.h"
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,20))
-//#include "crypto_compat.h"
-#endif
-
 
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
-#include "rtl_crypto.h"
-#else
 #include <linux/crypto.h>
-#endif
-//#include <asm/scatterlist.h>
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
-    #include <asm/scatterlist.h>
-#else
-        #include <linux/scatterlist.h>
-#endif
-
+#include <linux/scatterlist.h>
 #include <linux/crc32.h>
 
 MODULE_AUTHOR("Jouni Malinen");
@@ -71,17 +57,12 @@ struct ieee80211_tkip_data {
 	u32 dot11RSNAStatsTKIPLocalMICFailures;
 
 	int key_idx;
-#if((LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21)) || (OPENSUSE_SLED))
+
 	struct crypto_blkcipher *rx_tfm_arc4;
 	struct crypto_hash *rx_tfm_michael;
 	struct crypto_blkcipher *tx_tfm_arc4;
 	struct crypto_hash *tx_tfm_michael;
-#else
-	struct crypto_tfm *tx_tfm_arc4;
-	struct crypto_tfm *tx_tfm_michael;
-	struct crypto_tfm *rx_tfm_arc4;
-	struct crypto_tfm *rx_tfm_michael;
-#endif
+
 	/* scratch buffers for virt_to_page() (crypto API) */
 	u8 rx_hdr[16], tx_hdr[16];
 };
@@ -95,35 +76,7 @@ static void * ieee80211_tkip_init(int key_idx)
 		goto fail;
 	memset(priv, 0, sizeof(*priv));
 	priv->key_idx = key_idx;
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
-	priv->tx_tfm_arc4 = crypto_alloc_tfm("arc4", 0);
-	if (priv->tx_tfm_arc4 == NULL) {
-		printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate "
-				"crypto API arc4\n");
-		goto fail;
-	}
 
-	priv->tx_tfm_michael = crypto_alloc_tfm("michael_mic", 0);
-	if (priv->tx_tfm_michael == NULL) {
-		printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate "
-				"crypto API michael_mic\n");
-		goto fail;
-	}
-
-	priv->rx_tfm_arc4 = crypto_alloc_tfm("arc4", 0);
-	if (priv->rx_tfm_arc4 == NULL) {
-		printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate "
-				"crypto API arc4\n");
-		goto fail;
-	}
-
-	priv->rx_tfm_michael = crypto_alloc_tfm("michael_mic", 0);
-	if (priv->rx_tfm_michael == NULL) {
-		printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate "
-				"crypto API michael_mic\n");
-		goto fail;
-	}
-#else
 	priv->tx_tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0,
 			CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->tx_tfm_arc4)) {
@@ -159,22 +112,11 @@ static void * ieee80211_tkip_init(int key_idx)
 		priv->rx_tfm_michael = NULL;
 		goto fail;
 	}
-#endif
+
 	return priv;
 
 fail:
 	if (priv) {
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
-		if (priv->tx_tfm_michael)
-			crypto_free_tfm(priv->tx_tfm_michael);
-		if (priv->tx_tfm_arc4)
-			crypto_free_tfm(priv->tx_tfm_arc4);
-		if (priv->rx_tfm_michael)
-			crypto_free_tfm(priv->rx_tfm_michael);
-		if (priv->rx_tfm_arc4)
-			crypto_free_tfm(priv->rx_tfm_arc4);
-
-#else
 		if (priv->tx_tfm_michael)
 			crypto_free_hash(priv->tx_tfm_michael);
 		if (priv->tx_tfm_arc4)
@@ -183,7 +125,6 @@ fail:
 			crypto_free_hash(priv->rx_tfm_michael);
 		if (priv->rx_tfm_arc4)
 			crypto_free_blkcipher(priv->rx_tfm_arc4);
-#endif
 		kfree(priv);
 	}
 
@@ -194,16 +135,7 @@ fail:
 static void ieee80211_tkip_deinit(void *priv)
 {
 	struct ieee80211_tkip_data *_priv = priv;
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
-	if (_priv->tx_tfm_michael)
-		crypto_free_tfm(_priv->tx_tfm_michael);
-	if (_priv->tx_tfm_arc4)
-		crypto_free_tfm(_priv->tx_tfm_arc4);
-	if (_priv->rx_tfm_michael)
-		crypto_free_tfm(_priv->rx_tfm_michael);
-	if (_priv->rx_tfm_arc4)
-		crypto_free_tfm(_priv->rx_tfm_arc4);
-#else
+
 	if (_priv) {
 		if (_priv->tx_tfm_michael)
 			crypto_free_hash(_priv->tx_tfm_michael);
@@ -214,7 +146,6 @@ static void ieee80211_tkip_deinit(void *priv)
 		if (_priv->rx_tfm_arc4)
 			crypto_free_blkcipher(_priv->rx_tfm_arc4);
 	}
-#endif
 	kfree(priv);
 }
 
@@ -384,11 +315,8 @@ static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
 	u8 *pos;
 	struct ieee80211_hdr_4addr *hdr;
 	cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
-
-	#if((LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21)) || (OPENSUSE_SLED))
-	struct blkcipher_desc desc = {.tfm = tkey->tx_tfm_arc4};
+	struct blkcipher_desc desc = { .tfm = tkey->tx_tfm_arc4 };
 	int ret = 0;
-	#endif
 	u8 rc4key[16],  *icv;
 	u32 crc;
 	struct scatterlist sg;
@@ -451,33 +379,14 @@ printk("%x\n", ((u32*)tkey->key)[7]);
 	if (!tcb_desc->bHwSec)
 	{
 		icv = skb_put(skb, 4);
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
 		crc = ~crc32_le(~0, pos, len);
-#else
-		crc = ~ether_crc_le(len, pos);
-#endif
 		icv[0] = crc;
 		icv[1] = crc >> 8;
 		icv[2] = crc >> 16;
 		icv[3] = crc >> 24;
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
-		crypto_cipher_setkey(tkey->tx_tfm_arc4, rc4key, 16);
-		sg.page = virt_to_page(pos);
-		sg.offset = offset_in_page(pos);
-		sg.length = len + 4;
-		crypto_cipher_encrypt(tkey->tx_tfm_arc4, &sg, &sg, len + 4);
-#else
 		crypto_blkcipher_setkey(tkey->tx_tfm_arc4, rc4key, 16);
-#if(LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24))
-		sg.page = virt_to_page(pos);
-		sg.offset = offset_in_page(pos);
-		sg.length = len + 4;
-#else
-		sg_init_one(&sg, pos, len+4);
-#endif
+		sg_init_one(&sg, pos, len + 4);
 		ret= crypto_blkcipher_encrypt(&desc, &sg, &sg, len + 4);
-#endif
-
 	}
 
 	tkey->tx_iv16++;
@@ -487,11 +396,7 @@ printk("%x\n", ((u32*)tkey->key)[7]);
 	}
 
 	if (!tcb_desc->bHwSec)
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
-		return 0;
-	#else
 		return ret;
-	#endif
 	else
         	return 0;
 
@@ -506,9 +411,7 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
 	u16 iv16;
 	struct ieee80211_hdr_4addr *hdr;
 	cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
-	#if((LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21)) || (OPENSUSE_SLED))
-	struct blkcipher_desc desc = {.tfm = tkey->rx_tfm_arc4};
-	#endif
+	struct blkcipher_desc desc = { .tfm = tkey->rx_tfm_arc4 };
 	u8 rc4key[16];
 	u8 icv[4];
 	u32 crc;
@@ -567,21 +470,9 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
 
 		plen = skb->len - hdr_len - 12;
 
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
-		crypto_cipher_setkey(tkey->rx_tfm_arc4, rc4key, 16);
-		sg.page = virt_to_page(pos);
-		sg.offset = offset_in_page(pos);
-		sg.length = plen + 4;
-		crypto_cipher_decrypt(tkey->rx_tfm_arc4, &sg, &sg, plen + 4);
-#else
 		crypto_blkcipher_setkey(tkey->rx_tfm_arc4, rc4key, 16);
-#if(LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24))
-		sg.page = virt_to_page(pos);
-		sg.offset = offset_in_page(pos);
-		sg.length = plen + 4;
-#else
-		sg_init_one(&sg, pos, plen+4);
-#endif
+		sg_init_one(&sg, pos, plen + 4);
+
 		if (crypto_blkcipher_decrypt(&desc, &sg, &sg, plen + 4)) {
 			if (net_ratelimit()) {
 				printk(KERN_DEBUG ": TKIP: failed to decrypt "
@@ -590,13 +481,8 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
 			}
 			return -7;
 		}
-#endif
 
-	#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
 		crc = ~crc32_le(~0, pos, plen);
-	#else
-		crc = ~ether_crc_le(plen, pos);
-	#endif
 		icv[0] = crc;
 		icv[1] = crc >> 8;
 		icv[2] = crc >> 16;
@@ -643,48 +529,6 @@ if( ((u16*)skb->data)[0] & 0x4000){
 	return keyidx;
 }
 
-
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
-static int michael_mic(struct crypto_tfm * tfm_michael, u8 *key, u8 *hdr,
-		       u8 *data, size_t data_len, u8 *mic)
-{
-	struct scatterlist sg[2];
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
-        struct hash_desc desc;
-        int ret = 0;
-#endif
-
-	if (tfm_michael == NULL){
-		printk(KERN_WARNING "michael_mic: tfm_michael == NULL\n");
-		return -1;
-	}
-	sg[0].page = virt_to_page(hdr);
-	sg[0].offset = offset_in_page(hdr);
-	sg[0].length = 16;
-
-	sg[1].page = virt_to_page(data);
-	sg[1].offset = offset_in_page(data);
-	sg[1].length = data_len;
-
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
-	crypto_digest_init(tfm_michael);
-        crypto_digest_setkey(tfm_michael, key, 8);
-        crypto_digest_update(tfm_michael, sg, 2);
-        crypto_digest_final(tfm_michael, mic);
-        return 0;
-#else
-if (crypto_hash_setkey(tkey->tfm_michael, key, 8))
-                return -1;
-
-//      return 0;
-              desc.tfm = tkey->tfm_michael;
-              desc.flags = 0;
-              ret = crypto_hash_digest(&desc, sg, data_len + 16, mic);
-              return ret;
-#endif
-}
-#else
 static int michael_mic(struct crypto_hash *tfm_michael, u8 * key, u8 * hdr,
                        u8 * data, size_t data_len, u8 * mic)
 {
@@ -695,19 +539,10 @@ static int michael_mic(struct crypto_hash *tfm_michael, u8 * key, u8 * hdr,
                 printk(KERN_WARNING "michael_mic: tfm_michael == NULL\n");
                 return -1;
         }
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)
-        sg[0].page = virt_to_page(hdr);
-        sg[0].offset = offset_in_page(hdr);
-        sg[0].length = 16;
-
-        sg[1].page = virt_to_page(data);
-        sg[1].offset = offset_in_page(data);
-        sg[1].length = data_len;
-#else
-        sg_init_table(sg, 2);
-        sg_set_buf(&sg[0], hdr, 16);
-        sg_set_buf(&sg[1], data, data_len);
-#endif
+
+	sg_init_table(sg, 2);
+	sg_set_buf(&sg[0], hdr, 16);
+	sg_set_buf(&sg[1], data, data_len);
 
         if (crypto_hash_setkey(tfm_michael, key, 8))
                 return -1;
@@ -716,9 +551,6 @@ static int michael_mic(struct crypto_hash *tfm_michael, u8 * key, u8 * hdr,
         desc.flags = 0;
         return crypto_hash_digest(&desc, sg, data_len + 16, mic);
 }
-#endif
-
-
 
 static void michael_mic_hdr(struct sk_buff *skb, u8 *hdr)
 {
@@ -775,13 +607,9 @@ static int ieee80211_michael_mic_add(struct sk_buff *skb, int hdr_len, void *pri
 	}
 	// }
 	pos = skb_put(skb, 8);
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
-	if (michael_mic(tkey->tx_tfm_michael, &tkey->key[16], tkey->tx_hdr,
-				skb->data + hdr_len, skb->len - 8 - hdr_len, pos))
-#else
+
 	if (michael_mic(tkey->tx_tfm_michael, &tkey->key[16], tkey->tx_hdr,
-				skb->data + hdr_len, skb->len - 8 - hdr_len, pos))
-#endif
+			skb->data + hdr_len, skb->len - 8 - hdr_len, pos))
 		return -1;
 
 	return 0;
@@ -853,13 +681,8 @@ static int ieee80211_michael_mic_verify(struct sk_buff *skb, int keyidx,
 	}
 	// }
 
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
 	if (michael_mic(tkey->rx_tfm_michael, &tkey->key[24], tkey->rx_hdr,
-				skb->data + hdr_len, skb->len - 8 - hdr_len, mic))
-#else
-	if (michael_mic(tkey->rx_tfm_michael, &tkey->key[24], tkey->rx_hdr,
-				skb->data + hdr_len, skb->len - 8 - hdr_len, mic))
-#endif
+			skb->data + hdr_len, skb->len - 8 - hdr_len, mic))
             	return -1;
 	if (memcmp(mic, skb->data + skb->len - 8, 8) != 0) {
 		struct ieee80211_hdr_4addr *hdr;
@@ -889,32 +712,18 @@ static int ieee80211_tkip_set_key(void *key, int len, u8 *seq, void *priv)
 {
 	struct ieee80211_tkip_data *tkey = priv;
 	int keyidx;
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
-	struct crypto_tfm *tfm = tkey->tx_tfm_michael;
-	struct crypto_tfm *tfm2 = tkey->tx_tfm_arc4;
-	struct crypto_tfm *tfm3 = tkey->rx_tfm_michael;
-	struct crypto_tfm *tfm4 = tkey->rx_tfm_arc4;
-#else
 	struct crypto_hash *tfm = tkey->tx_tfm_michael;
 	struct crypto_blkcipher *tfm2 = tkey->tx_tfm_arc4;
 	struct crypto_hash *tfm3 = tkey->rx_tfm_michael;
 	struct crypto_blkcipher *tfm4 = tkey->rx_tfm_arc4;
-#endif
 
 	keyidx = tkey->key_idx;
 	memset(tkey, 0, sizeof(*tkey));
 	tkey->key_idx = keyidx;
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
 	tkey->tx_tfm_michael = tfm;
 	tkey->tx_tfm_arc4 = tfm2;
 	tkey->rx_tfm_michael = tfm3;
 	tkey->rx_tfm_arc4 = tfm4;
-#else
-	tkey->tx_tfm_michael = tfm;
-	tkey->tx_tfm_arc4 = tfm2;
-	tkey->rx_tfm_michael = tfm3;
-	tkey->rx_tfm_arc4 = tfm4;
-#endif
 
 	if (len == TKIP_KEY_LEN) {
 		memcpy(tkey->key, key, TKIP_KEY_LEN);
@@ -1024,11 +833,7 @@ void ieee80211_tkip_null(void)
 //    printk("============>%s()\n", __FUNCTION__);
         return;
 }
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
 EXPORT_SYMBOL(ieee80211_tkip_null);
-#else
-EXPORT_SYMBOL_NOVERS(ieee80211_tkip_null);
-#endif
 
 module_init(ieee80211_crypto_tkip_init);
 module_exit(ieee80211_crypto_tkip_exit);
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_wep.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_wep.c
index 7e394328ec90..df07212bd172 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_wep.c
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_wep.c
@@ -20,35 +20,10 @@
 
 #include "ieee80211.h"
 
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,20))
-//#include "crypto_compat.h"
-#endif
-
-
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
-#include "rtl_crypto.h"
-#else
 #include <linux/crypto.h>
-#endif
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
-    #include <asm/scatterlist.h>
-#else
-    #include <linux/scatterlist.h>
-#endif
-//#include <asm/scatterlist.h>
+#include <linux/scatterlist.h>
 #include <linux/crc32.h>
-//
-/*
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
-#include "rtl_crypto.h"
-#else
-#include <linux/crypto.h>
-#endif
 
-#include <asm/scatterlist.h>
-#include <linux/crc32.h>
-*/
 MODULE_AUTHOR("Jouni Malinen");
 MODULE_DESCRIPTION("Host AP crypt: WEP");
 MODULE_LICENSE("GPL");
@@ -62,12 +37,8 @@ struct prism2_wep_data {
 	u8 key[WEP_KEY_LEN + 1];
 	u8 key_len;
 	u8 key_idx;
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
-	struct crypto_tfm *tfm;
-	#else
-        struct crypto_blkcipher *tx_tfm;
-        struct crypto_blkcipher *rx_tfm;
-        #endif
+	struct crypto_blkcipher *tx_tfm;
+	struct crypto_blkcipher *rx_tfm;
 };
 
 
@@ -81,14 +52,6 @@ static void * prism2_wep_init(int keyidx)
 	memset(priv, 0, sizeof(*priv));
 	priv->key_idx = keyidx;
 
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
-	priv->tfm = crypto_alloc_tfm("arc4", 0);
-	if (priv->tfm == NULL) {
-		printk(KERN_DEBUG "ieee80211_crypt_wep: could not allocate "
-		       "crypto API arc4\n");
-		goto fail;
-	}
-	#else
 	priv->tx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC);
         if (IS_ERR(priv->tx_tfm)) {
                 printk(KERN_DEBUG "ieee80211_crypt_wep: could not allocate "
@@ -103,7 +66,6 @@ static void * prism2_wep_init(int keyidx)
                 priv->rx_tfm = NULL;
                 goto fail;
         }
-        #endif
 
 	/* start WEP IV from a random value */
 	get_random_bytes(&priv->iv, 4);
@@ -111,13 +73,6 @@ static void * prism2_wep_init(int keyidx)
 	return priv;
 
 fail:
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
-	if (priv) {
-		if (priv->tfm)
-			crypto_free_tfm(priv->tfm);
-		kfree(priv);
-	}
-	#else
 	if (priv) {
                 if (priv->tx_tfm)
                         crypto_free_blkcipher(priv->tx_tfm);
@@ -125,7 +80,7 @@ fail:
                         crypto_free_blkcipher(priv->rx_tfm);
                 kfree(priv);
         }
-        #endif
+
 	return NULL;
 }
 
@@ -133,17 +88,13 @@ fail:
 static void prism2_wep_deinit(void *priv)
 {
 	struct prism2_wep_data *_priv = priv;
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
-	if (_priv && _priv->tfm)
-		crypto_free_tfm(_priv->tfm);
-	#else
+
 	if (_priv) {
                 if (_priv->tx_tfm)
                         crypto_free_blkcipher(_priv->tx_tfm);
                 if (_priv->rx_tfm)
                         crypto_free_blkcipher(_priv->rx_tfm);
         }
-        #endif
 	kfree(priv);
 }
 
@@ -160,9 +111,7 @@ static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
 	u8 key[WEP_KEY_LEN + 3];
 	u8 *pos;
 	cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
-	#if((LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21)) || (OPENSUSE_SLED))
-	struct blkcipher_desc desc = {.tfm = wep->tx_tfm};
-	#endif
+	struct blkcipher_desc desc = { .tfm = wep->tx_tfm };
 	u32 crc;
 	u8 *icv;
 	struct scatterlist sg;
@@ -201,35 +150,17 @@ static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
 	{
 
 		/* Append little-endian CRC32 and encrypt it to produce ICV */
-	#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
 		crc = ~crc32_le(~0, pos, len);
-	#else
-		crc = ~ether_crc_le(len, pos);
-	#endif
 		icv = skb_put(skb, 4);
 		icv[0] = crc;
 		icv[1] = crc >> 8;
 		icv[2] = crc >> 16;
 		icv[3] = crc >> 24;
 
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
-		crypto_cipher_setkey(wep->tfm, key, klen);
-		sg.page = virt_to_page(pos);
-		sg.offset = offset_in_page(pos);
-		sg.length = len + 4;
-		crypto_cipher_encrypt(wep->tfm, &sg, &sg, len + 4);
-		return 0;
-	#else
 		crypto_blkcipher_setkey(wep->tx_tfm, key, klen);
-	#if(LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24))
-		sg.page = virt_to_page(pos);
-		sg.offset = offset_in_page(pos);
-		sg.length = len + 4;
-	#else
 		sg_init_one(&sg, pos, len+4);
-	#endif
+
 		return crypto_blkcipher_encrypt(&desc, &sg, &sg, len + 4);
-	#endif
 	}
 
 	return 0;
@@ -250,9 +181,7 @@ static int prism2_wep_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
 	u8 key[WEP_KEY_LEN + 3];
 	u8 keyidx, *pos;
 	cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
-	#if((LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21)) || (OPENSUSE_SLED))
-	struct blkcipher_desc desc = {.tfm = wep->rx_tfm};
-	#endif
+	struct blkcipher_desc desc = { .tfm = wep->rx_tfm };
 	u32 crc;
 	u8 icv[4];
 	struct scatterlist sg;
@@ -277,29 +206,13 @@ static int prism2_wep_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
 
 	if (!tcb_desc->bHwSec)
 	{
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
-		crypto_cipher_setkey(wep->tfm, key, klen);
-		sg.page = virt_to_page(pos);
-		sg.offset = offset_in_page(pos);
-		sg.length = plen + 4;
-		crypto_cipher_decrypt(wep->tfm, &sg, &sg, plen + 4);
-	#else
 		crypto_blkcipher_setkey(wep->rx_tfm, key, klen);
-	#if(LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24))
-		sg.page = virt_to_page(pos);
-		sg.offset = offset_in_page(pos);
-		sg.length = plen + 4;
-	#else
-		sg_init_one(&sg, pos, plen+4);
-	#endif
+		sg_init_one(&sg, pos, plen + 4);
+
 		if (crypto_blkcipher_decrypt(&desc, &sg, &sg, plen + 4))
 			return -7;
-	#endif
-	#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+
 		crc = ~crc32_le(~0, pos, plen);
-	#else
-		crc = ~ether_crc_le(plen, pos);
-	#endif
 		icv[0] = crc;
 		icv[1] = crc >> 8;
 		icv[2] = crc >> 16;
@@ -387,11 +300,7 @@ void ieee80211_wep_null(void)
 //	printk("============>%s()\n", __FUNCTION__);
         return;
 }
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
 EXPORT_SYMBOL(ieee80211_wep_null);
-#else
-EXPORT_SYMBOL_NOVERS(ieee80211_wep_null);
-#endif
 
 module_init(ieee80211_crypto_wep_init);
 module_exit(ieee80211_crypto_wep_exit);
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_module.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_module.c
index 759032db4a34..b85ffa0e83cd 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_module.c
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_module.c
@@ -113,12 +113,7 @@ struct net_device *alloc_ieee80211(int sizeof_priv)
 		goto failed;
 	}
 
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
 	ieee = netdev_priv(dev);
-#else
-	ieee = (struct ieee80211_device *)dev->priv;
-#endif
-
 	memset(ieee, 0, sizeof(struct ieee80211_device)+sizeof_priv);
 	ieee->dev = dev;
 
@@ -166,12 +161,7 @@ struct net_device *alloc_ieee80211(int sizeof_priv)
 
 	ieee80211_softmac_init(ieee);
 
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13))
 	ieee->pHTInfo = (RT_HIGH_THROUGHPUT*)kzalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL);
-#else
-	ieee->pHTInfo = (RT_HIGH_THROUGHPUT*)kmalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL);
-	memset(ieee->pHTInfo,0,sizeof(RT_HIGH_THROUGHPUT));
-#endif
 	if (ieee->pHTInfo == NULL)
 	{
 		IEEE80211_DEBUG(IEEE80211_DL_ERR, "can't alloc memory for HTInfo\n");
@@ -181,11 +171,7 @@ struct net_device *alloc_ieee80211(int sizeof_priv)
 	HTInitializeHTInfo(ieee); //may move to other place.
 	TSInitialize(ieee);
 #if 0
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
  	INIT_WORK(&ieee->ht_onAssRsp, (void(*)(void*)) HTOnAssocRsp_wq);
-#else
-	INIT_WORK(&ieee->ht_onAssRsp, (void(*)(void*)) HTOnAssocRsp_wq, ieee);
-#endif
 #endif
 	for (i = 0; i < IEEE_IBSS_MAC_HASH_SIZE; i++)
 		INIT_LIST_HEAD(&ieee->ibss_mac_hash[i]);
@@ -205,22 +191,15 @@ struct net_device *alloc_ieee80211(int sizeof_priv)
 
  failed:
 	if (dev)
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
 		free_netdev(dev);
-#else
-		kfree(dev);
-#endif
+
 	return NULL;
 }
 
 
 void free_ieee80211(struct net_device *dev)
 {
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
 	struct ieee80211_device *ieee = netdev_priv(dev);
-#else
-	struct ieee80211_device *ieee = (struct ieee80211_device *)dev->priv;
-#endif
 	int i;
 	//struct list_head *p, *q;
 //	del_timer_sync(&ieee->SwBwTimer);
@@ -241,11 +220,7 @@ void free_ieee80211(struct net_device *dev)
 		if (crypt) {
 			if (crypt->ops) {
 				crypt->ops->deinit(crypt->priv);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
 				module_put(crypt->ops->owner);
-#else
-				__MOD_DEC_USE_COUNT(crypt->ops->owner);
-#endif
 			}
 			kfree(crypt);
 			ieee->crypt[i] = NULL;
@@ -262,11 +237,7 @@ void free_ieee80211(struct net_device *dev)
 	}
 
 #endif
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
 	free_netdev(dev);
-#else
-	kfree(dev);
-#endif
 }
 
 #ifdef CONFIG_IEEE80211_DEBUG
@@ -332,11 +303,8 @@ static int __init ieee80211_init(void)
 	struct proc_dir_entry *e;
 
 	ieee80211_debug_level = debug;
-#if(LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24))
-	ieee80211_proc = create_proc_entry(DRV_NAME, S_IFDIR, proc_net);
-#else
+
 	ieee80211_proc = create_proc_entry(DRV_NAME, S_IFDIR, init_net.proc_net);
-#endif
 	if (ieee80211_proc == NULL) {
 		IEEE80211_ERROR("Unable to create " DRV_NAME
 				" proc directory\n");
@@ -345,11 +313,7 @@ static int __init ieee80211_init(void)
 	e = create_proc_entry("debug_level", S_IFREG | S_IRUGO | S_IWUSR,
 			      ieee80211_proc);
 	if (!e) {
-#if(LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24))
-		remove_proc_entry(DRV_NAME, proc_net);
-#else
 		remove_proc_entry(DRV_NAME, init_net.proc_net);
-#endif
 		ieee80211_proc = NULL;
 		return -EIO;
 	}
@@ -364,16 +328,11 @@ static void __exit ieee80211_exit(void)
 {
 	if (ieee80211_proc) {
 		remove_proc_entry("debug_level", ieee80211_proc);
-#if(LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24))
-		remove_proc_entry(DRV_NAME, proc_net);
-#else
 		remove_proc_entry(DRV_NAME, init_net.proc_net);
-#endif
 		ieee80211_proc = NULL;
 	}
 }
 
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
 #include <linux/moduleparam.h>
 module_param(debug, int, 0444);
 MODULE_PARM_DESC(debug, "debug output mask");
@@ -382,12 +341,6 @@ MODULE_PARM_DESC(debug, "debug output mask");
 module_exit(ieee80211_exit);
 module_init(ieee80211_init);
 #endif
-#endif
 
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
 EXPORT_SYMBOL(alloc_ieee80211);
 EXPORT_SYMBOL(free_ieee80211);
-#else
-EXPORT_SYMBOL_NOVERS(alloc_ieee80211);
-EXPORT_SYMBOL_NOVERS(free_ieee80211);
-#endif
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_rx.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_rx.c
index 2b2ffd34bc92..bbc9759e2c3d 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_rx.c
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_rx.c
@@ -55,11 +55,7 @@ static inline void ieee80211_monitor_rx(struct ieee80211_device *ieee,
 	u16 fc = le16_to_cpu(hdr->frame_ctl);
 
 	skb->dev = ieee->dev;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22)
         skb_reset_mac_header(skb);
-#else
-        skb->mac.raw = skb->data;
-#endif
 
 	skb_pull(skb, ieee80211_get_hdrlen(fc));
 	skb->pkt_type = PACKET_OTHERHOST;
@@ -2823,10 +2819,5 @@ void ieee80211_rx_mgt(struct ieee80211_device *ieee,
 	}
 }
 
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
 EXPORT_SYMBOL(ieee80211_rx_mgt);
 EXPORT_SYMBOL(ieee80211_rx);
-#else
-EXPORT_SYMBOL_NOVERS(ieee80211_rx_mgt);
-EXPORT_SYMBOL_NOVERS(ieee80211_rx);
-#endif
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_softmac.c
index 6773e84c778e..e25247e8ea52 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_softmac.c
@@ -512,34 +512,10 @@ out:
 }
 }
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-/* called both by wq with ieee->lock held */
-void ieee80211_softmac_scan(struct ieee80211_device *ieee)
-{
-#if 0
-	short watchdog = 0;
-	do{
-		ieee->current_network.channel =
-			(ieee->current_network.channel + 1) % MAX_CHANNEL_NUMBER;
-		if (watchdog++ > MAX_CHANNEL_NUMBER)
-				return; /* no good chans */
-
-	}while(!ieee->channel_map[ieee->current_network.channel]);
-#endif
-
-	schedule_task(&ieee->softmac_scan_wq);
-}
-#endif
-
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
 void ieee80211_softmac_scan_wq(struct work_struct *work)
 {
         struct delayed_work *dwork = container_of(work, struct delayed_work, work);
         struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_device, softmac_scan_wq);
-#else
-void ieee80211_softmac_scan_wq(struct ieee80211_device *ieee)
-{
-#endif
 	u8 last_channel = ieee->current_network.channel; //recored init channel inorder not change current channel when comming out the scan unexpectedly. WB.
 #ifdef ENABLE_DOT11D
 	u8 channel_map[MAX_CHANNEL_NUMBER+1];
@@ -575,14 +551,7 @@ void ieee80211_softmac_scan_wq(struct ieee80211_device *ieee)
 #endif
 	ieee80211_send_probe_requests(ieee);
 
-
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	queue_delayed_work(ieee->wq, &ieee->softmac_scan_wq, IEEE80211_SOFTMAC_SCAN_TIME);
-#else
-	//ieee->scan_timer.expires = jiffies + MSECS(IEEE80211_SOFTMAC_SCAN_TIME);
-	if (ieee->scanning == 1)
-		mod_timer(&ieee->scan_timer,(jiffies + MSECS(IEEE80211_SOFTMAC_SCAN_TIME)));
-#endif
 
 	up(&ieee->scan_sem);
 	return;
@@ -598,19 +567,6 @@ out:
 	up(&ieee->scan_sem);
 }
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-void ieee80211_softmac_scan_cb(unsigned long _dev)
-{
-	unsigned long flags;
-	struct ieee80211_device *ieee = (struct ieee80211_device *)_dev;
-
-	spin_lock_irqsave(&ieee->lock, flags);
-	ieee80211_softmac_scan(ieee);
-	spin_unlock_irqrestore(&ieee->lock, flags);
-}
-#endif
-
-
 void ieee80211_beacons_start(struct ieee80211_device *ieee)
 {
 	unsigned long flags;
@@ -666,11 +622,7 @@ void ieee80211_softmac_stop_scan(struct ieee80211_device *ieee)
 	if (ieee->scanning == 1){
 		ieee->scanning = 0;
 
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 		cancel_delayed_work(&ieee->softmac_scan_wq);
-#else
-		del_timer_sync(&ieee->scan_timer);
-#endif
 	}
 
 //	spin_unlock_irqrestore(&ieee->lock, flags);
@@ -700,16 +652,7 @@ void ieee80211_start_scan(struct ieee80211_device *ieee)
 	if (ieee->softmac_features & IEEE_SOFTMAC_SCAN){
 		if (ieee->scanning == 0){
 			ieee->scanning = 1;
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
 			queue_delayed_work(ieee->wq, &ieee->softmac_scan_wq, 0);
-#else
-
-			queue_work(ieee->wq, &ieee->softmac_scan_wq);
-#endif
-#else
-			ieee80211_softmac_scan(ieee);
-#endif
 		}
 	}else
 		ieee->start_scan(ieee->dev);
@@ -1390,12 +1333,8 @@ void ieee80211_associate_abort(struct ieee80211_device *ieee)
 
 	ieee->state = IEEE80211_ASSOCIATING_RETRY;
 
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	queue_delayed_work(ieee->wq, &ieee->associate_retry_wq, \
                            IEEE80211_SOFTMAC_ASSOC_RETRY_TIME);
-#else
-	schedule_task(&ieee->associate_retry_wq);
-#endif
 
 	spin_unlock_irqrestore(&ieee->lock, flags);
 }
@@ -1489,14 +1428,11 @@ void ieee80211_associate_step2(struct ieee80211_device *ieee)
 		//dev_kfree_skb_any(skb);//edit by thomas
 	}
 }
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
+
 void ieee80211_associate_complete_wq(struct work_struct *work)
 {
         struct ieee80211_device *ieee = container_of(work, struct ieee80211_device, associate_complete_wq);
-#else
-void ieee80211_associate_complete_wq(struct ieee80211_device *ieee)
-{
-#endif
+
 	printk(KERN_INFO "Associated successfully\n");
 	ieee->is_roaming = false;
 	if(ieee80211_is_54g(ieee->current_network) &&
@@ -1568,21 +1504,13 @@ void ieee80211_associate_complete(struct ieee80211_device *ieee)
 	}
 #endif
 	//ieee->UpdateHalRATRTableHandler(dev, ieee->dot11HTOperationalRateSet);
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	queue_work(ieee->wq, &ieee->associate_complete_wq);
-#else
-	schedule_task(&ieee->associate_complete_wq);
-#endif
 }
 
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
 void ieee80211_associate_procedure_wq(struct work_struct *work)
 {
         struct ieee80211_device *ieee = container_of(work, struct ieee80211_device, associate_procedure_wq);
-#else
-void ieee80211_associate_procedure_wq(struct ieee80211_device *ieee)
-{
-#endif
+
 	ieee->sync_scan_hurryup = 1;
 	down(&ieee->wx_sem);
 
@@ -1682,11 +1610,7 @@ inline void ieee80211_softmac_new_net(struct ieee80211_device *ieee, struct ieee
 					ieee->state = IEEE80211_ASSOCIATING;
 					if(ieee->LedControlHandler != NULL)
 					        ieee->LedControlHandler(ieee->dev, LED_CTL_START_TO_LINK);
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 					queue_work(ieee->wq, &ieee->associate_procedure_wq);
-#else
-					schedule_task(&ieee->associate_procedure_wq);
-#endif
 				}else{
 					if(ieee80211_is_54g(ieee->current_network) &&
 						(ieee->modulation & IEEE80211_OFDM_MODULATION)){
@@ -2194,11 +2118,7 @@ ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb,
 						"Association response status code 0x%x\n",
 						errcode);
 					if(ieee->AsocRetryCount < RT_ASOC_RETRY_LIMIT) {
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 						queue_work(ieee->wq, &ieee->associate_procedure_wq);
-#else
-						schedule_task(&ieee->associate_procedure_wq);
-#endif
 					} else {
 						ieee80211_associate_abort(ieee);
 					}
@@ -2310,11 +2230,7 @@ ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb,
 				RemovePeerTS(ieee, header->addr2);
 				if(ieee->LedControlHandler != NULL)
 				        ieee->LedControlHandler(ieee->dev, LED_CTL_START_TO_LINK); //added by amy for LED 090318
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 				queue_work(ieee->wq, &ieee->associate_procedure_wq);
-#else
-				schedule_task(&ieee->associate_procedure_wq);
-#endif
 			}
 			break;
 		case IEEE80211_STYPE_MANAGE_ACT:
@@ -2551,16 +2467,12 @@ void ieee80211_start_monitor_mode(struct ieee80211_device *ieee)
 		netif_carrier_on(ieee->dev);
 	}
 }
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
+
 void ieee80211_start_ibss_wq(struct work_struct *work)
 {
 
         struct delayed_work *dwork = container_of(work, struct delayed_work, work);
         struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_device, start_ibss_wq);
-#else
-void ieee80211_start_ibss_wq(struct ieee80211_device *ieee)
-{
-#endif
 	/* iwconfig mode ad-hoc will schedule this and return
 	 * on the other hand this will block further iwconfig SET
 	 * operations because of the wx_sem hold.
@@ -2673,11 +2585,7 @@ void ieee80211_start_ibss_wq(struct ieee80211_device *ieee)
 
 inline void ieee80211_start_ibss(struct ieee80211_device *ieee)
 {
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	queue_delayed_work(ieee->wq, &ieee->start_ibss_wq, 150);
-#else
-	schedule_task(&ieee->start_ibss_wq);
-#endif
 }
 
 /* this is called only in user context, with wx_sem held */
@@ -2720,15 +2628,11 @@ void ieee80211_start_bss(struct ieee80211_device *ieee)
 	spin_unlock_irqrestore(&ieee->lock, flags);
 }
 
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
 void ieee80211_link_change_wq(struct work_struct *work)
 {
         struct delayed_work *dwork = container_of(work, struct delayed_work, work);
         struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_device, link_change_wq);
-#else
-void ieee80211_link_change_wq(struct ieee80211_device *ieee)
-{
-#endif
+
 	ieee->link_change(ieee->dev);
 }
 /* called only in userspace context */
@@ -2751,25 +2655,17 @@ void ieee80211_disassociate(struct ieee80211_device *ieee)
 
 	//LZM for usb dev crash.
 	//ieee->link_change(ieee->dev);
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	queue_delayed_work(ieee->wq, &ieee->link_change_wq, 0);
-#else
-	schedule_task(&ieee->link_change_wq);
-#endif
 
 	//HTSetConnectBwMode(ieee, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
 	notify_wx_assoc_event(ieee);
 
 }
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
+
 void ieee80211_associate_retry_wq(struct work_struct *work)
 {
         struct delayed_work *dwork = container_of(work, struct delayed_work, work);
         struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_device, associate_retry_wq);
-#else
-void ieee80211_associate_retry_wq(struct ieee80211_device *ieee)
-{
-#endif
 	unsigned long flags;
 
 	down(&ieee->wx_sem);
@@ -2868,11 +2764,9 @@ void ieee80211_stop_protocol(struct ieee80211_device *ieee)
 
 	ieee80211_stop_send_beacons(ieee);
 	del_timer_sync(&ieee->associate_timer);
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	cancel_delayed_work(&ieee->associate_retry_wq);
 	cancel_delayed_work(&ieee->start_ibss_wq);
 	cancel_delayed_work(&ieee->link_change_wq);
-#endif
 	ieee80211_stop_scan(ieee);
 
 	ieee80211_disassociate(ieee);
@@ -2990,11 +2884,6 @@ void ieee80211_softmac_init(struct ieee80211_device *ieee)
 	ieee->sta_edca_param[3] = 0x002F3262;
 	ieee->aggregation = true;
 	ieee->enable_rx_imm_BA = 1;
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-	init_timer(&ieee->scan_timer);
-	ieee->scan_timer.data = (unsigned long)ieee;
-	ieee->scan_timer.function = ieee80211_softmac_scan_cb;
-#endif
 	ieee->tx_pending.txb = NULL;
 
 	init_timer(&ieee->associate_timer);
@@ -3005,16 +2894,12 @@ void ieee80211_softmac_init(struct ieee80211_device *ieee)
 	ieee->beacon_timer.data = (unsigned long) ieee;
 	ieee->beacon_timer.function = ieee80211_send_beacon_cb;
 
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 #ifdef PF_SYNCTHREAD
 	ieee->wq = create_workqueue(DRV_NAME,0);
 #else
 	ieee->wq = create_workqueue(DRV_NAME);
 #endif
-#endif
 
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
         INIT_DELAYED_WORK(&ieee->link_change_wq,ieee80211_link_change_wq);
         INIT_DELAYED_WORK(&ieee->start_ibss_wq,ieee80211_start_ibss_wq);
         INIT_WORK(&ieee->associate_complete_wq, ieee80211_associate_complete_wq);
@@ -3023,25 +2908,6 @@ void ieee80211_softmac_init(struct ieee80211_device *ieee)
         INIT_DELAYED_WORK(&ieee->associate_retry_wq, ieee80211_associate_retry_wq);
         INIT_WORK(&ieee->wx_sync_scan_wq,ieee80211_wx_sync_scan_wq);
 
-#else
-	INIT_WORK(&ieee->link_change_wq,(void(*)(void*)) ieee80211_link_change_wq,ieee);
-	INIT_WORK(&ieee->start_ibss_wq,(void(*)(void*)) ieee80211_start_ibss_wq,ieee);
-	INIT_WORK(&ieee->associate_retry_wq,(void(*)(void*)) ieee80211_associate_retry_wq,ieee);
-	INIT_WORK(&ieee->associate_complete_wq,(void(*)(void*)) ieee80211_associate_complete_wq,ieee);
-	INIT_WORK(&ieee->associate_procedure_wq,(void(*)(void*)) ieee80211_associate_procedure_wq,ieee);
-	INIT_WORK(&ieee->softmac_scan_wq,(void(*)(void*)) ieee80211_softmac_scan_wq,ieee);
-	INIT_WORK(&ieee->wx_sync_scan_wq,(void(*)(void*)) ieee80211_wx_sync_scan_wq,ieee);
-#endif
-
-#else
-	tq_init(&ieee->link_change_wq,(void(*)(void*)) ieee80211_link_change_wq,ieee);
-	tq_init(&ieee->start_ibss_wq,(void(*)(void*)) ieee80211_start_ibss_wq,ieee);
-	tq_init(&ieee->associate_retry_wq,(void(*)(void*)) ieee80211_associate_retry_wq,ieee);
-	tq_init(&ieee->associate_complete_wq,(void(*)(void*)) ieee80211_associate_complete_wq,ieee);
-	tq_init(&ieee->associate_procedure_wq,(void(*)(void*)) ieee80211_associate_procedure_wq,ieee);
-	tq_init(&ieee->softmac_scan_wq,(void(*)(void*)) ieee80211_softmac_scan_wq,ieee);
-	tq_init(&ieee->wx_sync_scan_wq,(void(*)(void*)) ieee80211_wx_sync_scan_wq,ieee);
-#endif
 	sema_init(&ieee->wx_sem, 1);
 	sema_init(&ieee->scan_sem, 1);
 
@@ -3066,10 +2932,8 @@ void ieee80211_softmac_free(struct ieee80211_device *ieee)
 #endif
 	del_timer_sync(&ieee->associate_timer);
 
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	cancel_delayed_work(&ieee->associate_retry_wq);
 	destroy_workqueue(ieee->wq);
-#endif
 
 	up(&ieee->wx_sem);
 }
@@ -3347,11 +3211,8 @@ static int ieee80211_wpa_set_encryption(struct ieee80211_device *ieee,
 		}
 		memset(new_crypt, 0, sizeof(struct ieee80211_crypt_data));
 		new_crypt->ops = ops;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
+
 		if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
-#else
-		if (new_crypt->ops && try_inc_mod_count(new_crypt->ops->owner))
-#endif
 			new_crypt->priv =
 				new_crypt->ops->init(param->u.crypt.idx);
 
@@ -3534,7 +3395,6 @@ void notify_wx_assoc_event(struct ieee80211_device *ieee)
 	wireless_send_event(ieee->dev, SIOCGIWAP, &wrqu, NULL);
 }
 
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
 EXPORT_SYMBOL(ieee80211_get_beacon);
 EXPORT_SYMBOL(ieee80211_wake_queue);
 EXPORT_SYMBOL(ieee80211_stop_queue);
@@ -3555,26 +3415,4 @@ EXPORT_SYMBOL(ieee80211_stop_scan);
 EXPORT_SYMBOL(ieee80211_send_probe_requests);
 EXPORT_SYMBOL(ieee80211_softmac_scan_syncro);
 EXPORT_SYMBOL(ieee80211_start_scan_syncro);
-#else
-EXPORT_SYMBOL_NOVERS(ieee80211_get_beacon);
-EXPORT_SYMBOL_NOVERS(ieee80211_wake_queue);
-EXPORT_SYMBOL_NOVERS(ieee80211_stop_queue);
-EXPORT_SYMBOL_NOVERS(ieee80211_reset_queue);
-EXPORT_SYMBOL_NOVERS(ieee80211_softmac_stop_protocol);
-EXPORT_SYMBOL_NOVERS(ieee80211_softmac_start_protocol);
-EXPORT_SYMBOL_NOVERS(ieee80211_is_shortslot);
-EXPORT_SYMBOL_NOVERS(ieee80211_is_54g);
-EXPORT_SYMBOL_NOVERS(ieee80211_wpa_supplicant_ioctl);
-EXPORT_SYMBOL_NOVERS(ieee80211_ps_tx_ack);
-EXPORT_SYMBOL_NOVERS(ieee80211_softmac_xmit);
-EXPORT_SYMBOL_NOVERS(ieee80211_stop_send_beacons);
-EXPORT_SYMBOL_NOVERS(notify_wx_assoc_event);
-EXPORT_SYMBOL_NOVERS(SendDisassociation);
-EXPORT_SYMBOL_NOVERS(ieee80211_disassociate);
-EXPORT_SYMBOL_NOVERS(ieee80211_start_send_beacons);
-EXPORT_SYMBOL_NOVERS(ieee80211_stop_scan);
-EXPORT_SYMBOL_NOVERS(ieee80211_send_probe_requests);
-EXPORT_SYMBOL_NOVERS(ieee80211_softmac_scan_syncro);
-EXPORT_SYMBOL_NOVERS(ieee80211_start_scan_syncro);
-#endif
 //EXPORT_SYMBOL(ieee80211_sta_ps_send_null_frame);
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_softmac_wx.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_softmac_wx.c
index 191dc3fbbe32..0f668d1c1bba 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_softmac_wx.c
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_softmac_wx.c
@@ -313,14 +313,9 @@ out:
 	return 0;
 }
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
 void ieee80211_wx_sync_scan_wq(struct work_struct *work)
 {
         struct ieee80211_device *ieee = container_of(work, struct ieee80211_device, wx_sync_scan_wq);
-#else
-void ieee80211_wx_sync_scan_wq(struct ieee80211_device *ieee)
-{
-#endif
 	short chan;
 	HT_EXTCHNL_OFFSET chan_offset=0;
 	HT_CHANNEL_WIDTH bandwidth=0;
@@ -410,11 +405,7 @@ int ieee80211_wx_set_scan(struct ieee80211_device *ieee, struct iw_request_info
 	}
 
 	if ( ieee->state == IEEE80211_LINKED){
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 		queue_work(ieee->wq, &ieee->wx_sync_scan_wq);
-#else
-		schedule_task(&ieee->wx_sync_scan_wq);
-#endif
 		/* intentionally forget to up sem */
 		return 0;
 	}
@@ -460,18 +451,6 @@ int ieee80211_wx_set_essid(struct ieee80211_device *ieee,
 	if (wrqu->essid.flags && wrqu->essid.length) {
 		//first flush current network.ssid
 		len = ((wrqu->essid.length-1) < IW_ESSID_MAX_SIZE) ? (wrqu->essid.length-1) : IW_ESSID_MAX_SIZE;
-#if LINUX_VERSION_CODE <  KERNEL_VERSION(2,6,20)
-		strncpy(ieee->current_network.ssid, extra, len);
-		ieee->current_network.ssid_len = len;
-#if 0
-		{
-			int i;
-			for (i=0; i<len; i++)
-				printk("%c ", extra[i]);
-			printk("\n");
-		}
-#endif
-#else
 		strncpy(ieee->current_network.ssid, extra, len+1);
 		ieee->current_network.ssid_len = len+1;
 #if 0
@@ -481,7 +460,6 @@ int ieee80211_wx_set_essid(struct ieee80211_device *ieee,
 				printk("%c ", extra[i]);
 			printk("\n");
 		}
-#endif
 #endif
 		ieee->ssid_set = 1;
 	}
@@ -670,7 +648,7 @@ exit:
 	return ret;
 
 }
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+
 EXPORT_SYMBOL(ieee80211_wx_get_essid);
 EXPORT_SYMBOL(ieee80211_wx_set_essid);
 EXPORT_SYMBOL(ieee80211_wx_set_rate);
@@ -689,23 +667,3 @@ EXPORT_SYMBOL(ieee80211_wx_get_power);
 EXPORT_SYMBOL(ieee80211_wlan_frequencies);
 EXPORT_SYMBOL(ieee80211_wx_set_rts);
 EXPORT_SYMBOL(ieee80211_wx_get_rts);
-#else
-EXPORT_SYMBOL_NOVERS(ieee80211_wx_get_essid);
-EXPORT_SYMBOL_NOVERS(ieee80211_wx_set_essid);
-EXPORT_SYMBOL_NOVERS(ieee80211_wx_set_rate);
-EXPORT_SYMBOL_NOVERS(ieee80211_wx_get_rate);
-EXPORT_SYMBOL_NOVERS(ieee80211_wx_set_wap);
-EXPORT_SYMBOL_NOVERS(ieee80211_wx_get_wap);
-EXPORT_SYMBOL_NOVERS(ieee80211_wx_set_mode);
-EXPORT_SYMBOL_NOVERS(ieee80211_wx_get_mode);
-EXPORT_SYMBOL_NOVERS(ieee80211_wx_set_scan);
-EXPORT_SYMBOL_NOVERS(ieee80211_wx_get_freq);
-EXPORT_SYMBOL_NOVERS(ieee80211_wx_set_freq);
-EXPORT_SYMBOL_NOVERS(ieee80211_wx_set_rawtx);
-EXPORT_SYMBOL_NOVERS(ieee80211_wx_get_name);
-EXPORT_SYMBOL_NOVERS(ieee80211_wx_set_power);
-EXPORT_SYMBOL_NOVERS(ieee80211_wx_get_power);
-EXPORT_SYMBOL_NOVERS(ieee80211_wlan_frequencies);
-EXPORT_SYMBOL_NOVERS(ieee80211_wx_set_rts);
-EXPORT_SYMBOL_NOVERS(ieee80211_wx_get_rts);
-#endif
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_tx.c
index cba12b84be5c..d4047c6ca2dd 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_tx.c
@@ -287,11 +287,8 @@ ieee80211_classify(struct sk_buff *skb, struct ieee80211_network *network)
 		return 0;
 
 //	IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA, skb->data, skb->len);
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22))
 	ip = ip_hdr(skb);
-#else
-	ip = (struct iphdr*)(skb->data + sizeof(struct ether_header));
-#endif
+
 	switch (ip->tos & 0xfc) {
 		case 0x20:
 			return 2;
@@ -620,11 +617,7 @@ void ieee80211_query_seqnum(struct ieee80211_device*ieee, struct sk_buff* skb, u
 
 int rtl8192_ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
 {
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
 	struct ieee80211_device *ieee = netdev_priv(dev);
-#else
-	struct ieee80211_device *ieee = (struct ieee80211_device *)dev->priv;
-#endif
 	struct ieee80211_txb *txb = NULL;
 	struct ieee80211_hdr_3addrqos *frag_hdr;
 	int i, bytes_per_frag, nr_frags, bytes_last_frag, frag_size;
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_wx.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_wx.c
index ae11e2576beb..79bb48002269 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_wx.c
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_wx.c
@@ -53,25 +53,7 @@ struct modes_unit ieee80211_modes[] = {
 	{"N-5G",4},
 };
 
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,4,20)) && (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
-static inline char *
-iwe_stream_add_event_rsl(char *     stream,         /* Stream of events */
-                     char *     ends,           /* End of stream */
-                     struct iw_event *iwe,      /* Payload */
-                     int        event_len)      /* Real size of payload */
-{
-        /* Check if it's possible */
-        if((stream + event_len) < ends) {
-                iwe->len = event_len;
-		ndelay(1);   //new
-                memcpy(stream, (char *) iwe, event_len);
-                stream += event_len;
-        }
-        return stream;
-}
-#else
 #define iwe_stream_add_event_rsl iwe_stream_add_event
-#endif
 
 #define MAX_CUSTOM_LEN 64
 static inline char *rtl819x_translate_scan(struct ieee80211_device *ieee,
@@ -92,11 +74,8 @@ static inline char *rtl819x_translate_scan(struct ieee80211_device *ieee,
 	iwe.cmd = SIOCGIWAP;
 	iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
 	memcpy(iwe.u.ap_addr.sa_data, network->bssid, ETH_ALEN);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
 	start = iwe_stream_add_event_rsl(info, start, stop, &iwe, IW_EV_ADDR_LEN);
-#else
-	start = iwe_stream_add_event_rsl(start, stop, &iwe, IW_EV_ADDR_LEN);
-#endif
+
 	/* Remaining entries will be displayed in the order we provide them */
 
 	/* Add the ESSID */
@@ -105,18 +84,10 @@ static inline char *rtl819x_translate_scan(struct ieee80211_device *ieee,
 //	if (network->flags & NETWORK_EMPTY_ESSID) {
 	if (network->ssid_len == 0) {
 		iwe.u.data.length = sizeof("<hidden>");
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
                 start = iwe_stream_add_point(info, start, stop, &iwe, "<hidden>");
-#else
-                start = iwe_stream_add_point(start, stop, &iwe, "<hidden>");
-#endif
         } else {
 		iwe.u.data.length = min(network->ssid_len, (u8)32);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
                 start = iwe_stream_add_point(info, start, stop, &iwe, network->ssid);
-#else
-                start = iwe_stream_add_point(start, stop, &iwe, network->ssid);
-#endif
         }
 	/* Add the protocol name */
 	iwe.cmd = SIOCGIWNAME;
@@ -128,11 +99,7 @@ static inline char *rtl819x_translate_scan(struct ieee80211_device *ieee,
 	}
 	*pname = '\0';
 	snprintf(iwe.u.name, IFNAMSIZ, "IEEE802.11%s", proto_name);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
         start = iwe_stream_add_event_rsl(info, start, stop, &iwe, IW_EV_CHAR_LEN);
-#else
-        start = iwe_stream_add_event_rsl(start, stop, &iwe, IW_EV_CHAR_LEN);
-#endif
         /* Add mode */
         iwe.cmd = SIOCGIWMODE;
         if (network->capability &
@@ -141,11 +108,7 @@ static inline char *rtl819x_translate_scan(struct ieee80211_device *ieee,
 			iwe.u.mode = IW_MODE_MASTER;
 		else
 			iwe.u.mode = IW_MODE_ADHOC;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
                 start = iwe_stream_add_event_rsl(info, start, stop, &iwe, IW_EV_UINT_LEN);
-#else
-                start = iwe_stream_add_event_rsl(start, stop, &iwe, IW_EV_UINT_LEN);
-#endif
         }
 
         /* Add frequency/channel */
@@ -155,11 +118,7 @@ static inline char *rtl819x_translate_scan(struct ieee80211_device *ieee,
 	iwe.u.freq.m = network->channel;
 	iwe.u.freq.e = 0;
 	iwe.u.freq.i = 0;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
         start = iwe_stream_add_event_rsl(info, start, stop, &iwe, IW_EV_FREQ_LEN);
-#else
-        start = iwe_stream_add_event_rsl(start, stop, &iwe, IW_EV_FREQ_LEN);
-#endif
 	/* Add encryption capability */
 	iwe.cmd = SIOCGIWENCODE;
 	if (network->capability & WLAN_CAPABILITY_PRIVACY)
@@ -167,11 +126,7 @@ static inline char *rtl819x_translate_scan(struct ieee80211_device *ieee,
 	else
 		iwe.u.data.flags = IW_ENCODE_DISABLED;
 	iwe.u.data.length = 0;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
         start = iwe_stream_add_point(info, start, stop, &iwe, network->ssid);
-#else
-        start = iwe_stream_add_point(start, stop, &iwe, network->ssid);
-#endif
 	/* Add basic and extended rates */
 	max_rate = 0;
 	p = custom;
@@ -227,21 +182,14 @@ static inline char *rtl819x_translate_scan(struct ieee80211_device *ieee,
 	iwe.cmd = SIOCGIWRATE;
 	iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
 	iwe.u.bitrate.value = max_rate * 500000;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
         start = iwe_stream_add_event_rsl(info, start, stop, &iwe,
 				     IW_EV_PARAM_LEN);
-#else
-        start = iwe_stream_add_event_rsl(start, stop, &iwe,
-				     IW_EV_PARAM_LEN);
-#endif
+
 	iwe.cmd = IWEVCUSTOM;
 	iwe.u.data.length = p - custom;
 	if (iwe.u.data.length)
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
         start = iwe_stream_add_point(info, start, stop, &iwe, custom);
-#else
-        start = iwe_stream_add_point(start, stop, &iwe, custom);
-#endif
+
 	/* Add quality statistics */
 	/* TODO: Fix these values... */
 	iwe.cmd = IWEVQUAL;
@@ -256,21 +204,13 @@ static inline char *rtl819x_translate_scan(struct ieee80211_device *ieee,
 	if (!(network->stats.mask & IEEE80211_STATMASK_SIGNAL))
 		iwe.u.qual.updated |= IW_QUAL_QUAL_INVALID;
 	iwe.u.qual.updated = 7;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
         start = iwe_stream_add_event_rsl(info, start, stop, &iwe, IW_EV_QUAL_LEN);
-#else
-        start = iwe_stream_add_event_rsl(start, stop, &iwe, IW_EV_QUAL_LEN);
-#endif
 	iwe.cmd = IWEVCUSTOM;
 	p = custom;
 
 	iwe.u.data.length = p - custom;
 	if (iwe.u.data.length)
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
             start = iwe_stream_add_point(info, start, stop, &iwe, custom);
-#else
-            start = iwe_stream_add_point(start, stop, &iwe, custom);
-#endif
 #if (WIRELESS_EXT < 18)
 	if (ieee->wpa_enabled && network->wpa_ie_len){
 		char buf[MAX_WPA_IE_LEN * 2 + 30];
@@ -284,11 +224,7 @@ static inline char *rtl819x_translate_scan(struct ieee80211_device *ieee,
 		memset(&iwe, 0, sizeof(iwe));
 		iwe.cmd = IWEVCUSTOM;
 		iwe.u.data.length = strlen(buf);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
                 start = iwe_stream_add_point(info, start, stop, &iwe, buf);
-#else
-                start = iwe_stream_add_point(start, stop, &iwe, buf);
-#endif
         }
 
 	if (ieee->wpa_enabled && network->rsn_ie_len){
@@ -303,11 +239,7 @@ static inline char *rtl819x_translate_scan(struct ieee80211_device *ieee,
 		memset(&iwe, 0, sizeof(iwe));
 		iwe.cmd = IWEVCUSTOM;
 		iwe.u.data.length = strlen(buf);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
                 start = iwe_stream_add_point(info, start, stop, &iwe, buf);
-#else
-                start = iwe_stream_add_point(start, stop, &iwe, buf);
-#endif
         }
 #else
 	memset(&iwe, 0, sizeof(iwe));
@@ -317,11 +249,7 @@ static inline char *rtl819x_translate_scan(struct ieee80211_device *ieee,
 		memcpy(buf, network->wpa_ie, network->wpa_ie_len);
 		iwe.cmd = IWEVGENIE;
 		iwe.u.data.length = network->wpa_ie_len;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
                 start = iwe_stream_add_point(info, start, stop, &iwe, buf);
-#else
-                start = iwe_stream_add_point(start, stop, &iwe, buf);
-#endif
         }
 	memset(&iwe, 0, sizeof(iwe));
 	if (network->rsn_ie_len)
@@ -330,11 +258,7 @@ static inline char *rtl819x_translate_scan(struct ieee80211_device *ieee,
 		memcpy(buf, network->rsn_ie, network->rsn_ie_len);
 		iwe.cmd = IWEVGENIE;
 		iwe.u.data.length = network->rsn_ie_len;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
                 start = iwe_stream_add_point(info, start, stop, &iwe, buf);
-#else
-                start = iwe_stream_add_point(start, stop, &iwe, buf);
-#endif
         }
 #endif
 
@@ -347,11 +271,7 @@ static inline char *rtl819x_translate_scan(struct ieee80211_device *ieee,
 		      " Last beacon: %lums ago", (jiffies - network->last_scanned) / (HZ / 100));
 	iwe.u.data.length = p - custom;
 	if (iwe.u.data.length)
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
             start = iwe_stream_add_point(info, start, stop, &iwe, custom);
-#else
-            start = iwe_stream_add_point(start, stop, &iwe, custom);
-#endif
 
 	return start;
 }
@@ -486,11 +406,7 @@ int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
 			request_module("ieee80211_crypt_wep");
 			new_crypt->ops = ieee80211_get_crypto_ops("WEP");
 		}
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
 		if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
-#else
-		if (new_crypt->ops && try_inc_mod_count(new_crypt->ops->owner))
-#endif
 			new_crypt->priv = new_crypt->ops->init(key);
 
 		if (!new_crypt->ops || !new_crypt->priv) {
@@ -638,7 +554,6 @@ int ieee80211_wx_set_encode_ext(struct ieee80211_device *ieee,
                                union iwreq_data *wrqu, char *extra)
 {
 	int ret = 0;
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	struct net_device *dev = ieee->dev;
         struct iw_point *encoding = &wrqu->encoding;
         struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
@@ -747,12 +662,7 @@ int ieee80211_wx_set_encode_ext(struct ieee80211_device *ieee,
 
                 ieee80211_crypt_delayed_deinit(ieee, crypt);
 
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13))
                 new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL);
-#else
-                new_crypt = kmalloc(sizeof(*new_crypt), GFP_KERNEL);
-		memset(new_crypt,0,sizeof(*new_crypt));
-#endif
                 if (new_crypt == NULL) {
                         ret = -ENOMEM;
                         goto done;
@@ -818,7 +728,7 @@ done:
                 IEEE80211_DEBUG_WX("%s: reset_port failed\n", dev->name);
                 return -EINVAL;
         }
-#endif
+
         return ret;
 }
 
@@ -881,8 +791,8 @@ int ieee80211_wx_set_mlme(struct ieee80211_device *ieee,
                                struct iw_request_info *info,
                                union iwreq_data *wrqu, char *extra)
 {
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	struct iw_mlme *mlme = (struct iw_mlme *) extra;
+
 	switch (mlme->cmd) {
         case IW_MLME_DEAUTH:
 	case IW_MLME_DISASSOC:
@@ -891,7 +801,7 @@ int ieee80211_wx_set_mlme(struct ieee80211_device *ieee,
 	 default:
                 return -EOPNOTSUPP;
         }
-#endif
+
 	return 0;
 }
 
@@ -899,7 +809,6 @@ int ieee80211_wx_set_auth(struct ieee80211_device *ieee,
                                struct iw_request_info *info,
                                struct iw_param *data, char *extra)
 {
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	switch (data->flags & IW_AUTH_INDEX) {
         case IW_AUTH_WPA_VERSION:
 	     /*need to support wpa2 here*/
@@ -957,14 +866,13 @@ int ieee80211_wx_set_auth(struct ieee80211_device *ieee,
 	default:
                 return -EOPNOTSUPP;
 	}
-#endif
+
 	return 0;
 }
 #endif
 #if 1
 int ieee80211_wx_set_gen_ie(struct ieee80211_device *ieee, u8 *ie, size_t len)
 {
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 #if 0
 	printk("====>%s()\n", __FUNCTION__);
 	{
@@ -1004,13 +912,12 @@ int ieee80211_wx_set_gen_ie(struct ieee80211_device *ieee, u8 *ie, size_t len)
 		ieee->wpa_ie = NULL;
 		ieee->wpa_ie_len = 0;
 	}
-#endif
+
 	return 0;
 
 }
 #endif
 
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
 EXPORT_SYMBOL(ieee80211_wx_set_gen_ie);
 #if (WIRELESS_EXT >= 18)
 EXPORT_SYMBOL(ieee80211_wx_set_mlme);
@@ -1021,12 +928,3 @@ EXPORT_SYMBOL(ieee80211_wx_get_encode_ext);
 EXPORT_SYMBOL(ieee80211_wx_get_scan);
 EXPORT_SYMBOL(ieee80211_wx_set_encode);
 EXPORT_SYMBOL(ieee80211_wx_get_encode);
-#else
-EXPORT_SYMBOL_NOVERS(ieee80211_wx_set_gen_ie);
-//EXPORT_SYMBOL_NOVERS(ieee80211_wx_set_mlme);
-//EXPORT_SYMBOL_NOVERS(ieee80211_wx_set_auth);
-//EXPORT_SYMBOL_NOVERS(ieee80211_wx_set_encode_ext);
-EXPORT_SYMBOL_NOVERS(ieee80211_wx_get_scan);
-EXPORT_SYMBOL_NOVERS(ieee80211_wx_set_encode);
-EXPORT_SYMBOL_NOVERS(ieee80211_wx_get_encode);
-#endif
diff --git a/drivers/staging/rtl8192su/ieee80211/rtl819x_HTProc.c b/drivers/staging/rtl8192su/ieee80211/rtl819x_HTProc.c
index f357085f6643..d263cdfca6da 100644
--- a/drivers/staging/rtl8192su/ieee80211/rtl819x_HTProc.c
+++ b/drivers/staging/rtl8192su/ieee80211/rtl819x_HTProc.c
@@ -1241,14 +1241,9 @@ u8 HTFilterMCSRate( struct ieee80211_device* ieee, u8* pSupportMCS, u8* pOperate
 void HTSetConnectBwMode(struct ieee80211_device* ieee, HT_CHANNEL_WIDTH	Bandwidth, HT_EXTCHNL_OFFSET	Offset);
 #if 0
 //I need move this function to other places, such as rx?
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
 void HTOnAssocRsp_wq(struct work_struct *work)
 {
 	struct ieee80211_device *ieee = container_of(work, struct ieee80211_device, ht_onAssRsp);
-#else
-void HTOnAssocRsp_wq(struct ieee80211_device *ieee)
-{
-#endif
 #endif
 void HTOnAssocRsp(struct ieee80211_device *ieee)
 {
@@ -2030,8 +2025,4 @@ void HTSetConnectBwModeCallback(struct ieee80211_device* ieee)
 	pHTInfo->bSwBwInProgress = false;
 }
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-EXPORT_SYMBOL_NOVERS(HTUpdateSelfAndPeerSetting);
-#else
 EXPORT_SYMBOL(HTUpdateSelfAndPeerSetting);
-#endif
diff --git a/drivers/staging/rtl8192su/ieee80211/rtl819x_TSProc.c b/drivers/staging/rtl8192su/ieee80211/rtl819x_TSProc.c
index 6fb7033ed360..ec4a8a3493e2 100644
--- a/drivers/staging/rtl8192su/ieee80211/rtl819x_TSProc.c
+++ b/drivers/staging/rtl8192su/ieee80211/rtl819x_TSProc.c
@@ -2,13 +2,6 @@
 #include <linux/etherdevice.h>
 #include "rtl819x_TS.h"
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-#define list_for_each_entry_safe(pos, n, head, member) \
-	for (pos = list_entry((head)->next, typeof(*pos), member), \
-		n = list_entry(pos->member.next, typeof(*pos), member); \
-		&pos->member != (head); \
-		pos = n, n = list_entry(n->member.next, typeof(*n), member))
-#endif
 void TsSetupTimeOut(unsigned long data)
 {
 	// Not implement yet
@@ -660,8 +653,5 @@ void TsStartAddBaProcess(struct ieee80211_device* ieee, PTX_TS_RECORD	pTxTS)
 	else
 		IEEE80211_DEBUG(IEEE80211_DL_ERR, "%s()==>BA timer is already added\n", __FUNCTION__);
 }
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-EXPORT_SYMBOL_NOVERS(RemovePeerTS);
-#else
+
 EXPORT_SYMBOL(RemovePeerTS);
-#endif
diff --git a/drivers/staging/rtl8192su/r8192S_firmware.c b/drivers/staging/rtl8192su/r8192S_firmware.c
index ab8bf3ea480a..08d38b240c2f 100644
--- a/drivers/staging/rtl8192su/r8192S_firmware.c
+++ b/drivers/staging/rtl8192su/r8192S_firmware.c
@@ -25,9 +25,7 @@
 #include "r8192xU_firmware_img.h"
 #endif
 
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 #include <linux/firmware.h>
-#endif
 
 #define   byte(x,n)  ( (x >> (8 * n)) & 0xff  )
 
@@ -405,16 +403,11 @@ bool FirmwareDownload92S(struct net_device *dev)
 	//3 //<1> Open Image file, and map file to contineous memory if open file success.
 	//3  //        or read image file from array. Default load from BIN file
 	//3//
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-	priv->firmware_source = FW_SOURCE_HEADER_FILE;
-#else
 	priv->firmware_source = FW_SOURCE_IMG_FILE;// We should decided by Reg.
-#endif
 
 	switch( priv->firmware_source )
 	{
 		case FW_SOURCE_IMG_FILE:
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 			if(pFirmware->szFwTmpBufferLen == 0)
 			{
 
@@ -473,7 +466,6 @@ bool FirmwareDownload92S(struct net_device *dev)
 
 
 			}
-#endif
 			break;
 
 		case FW_SOURCE_HEADER_FILE:
@@ -870,11 +862,8 @@ 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.
@@ -883,7 +872,6 @@ bool init_firmware(struct net_device *dev)
 		if(rst_opt == OPT_SYSTEM_RESET) {
 			switch(priv->firmware_source) {
 				case FW_SOURCE_IMG_FILE:
-				#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 					rc = request_firmware(&fw_entry, fw_name[init_step],&priv->udev->dev);
 					if(rc < 0 ) {
 						RT_TRACE(COMP_ERR, "request firmware fail!\n");
@@ -912,7 +900,6 @@ bool init_firmware(struct net_device *dev)
 					#endif
 					}
 					pfirmware->firmware_buf_size = file_length;
-					#endif
 					break;
 
 				case FW_SOURCE_HEADER_FILE:
@@ -943,11 +930,10 @@ bool init_firmware(struct net_device *dev)
 		 *   and Tx descriptor info
 		 * */
 		rt_status = fw_download_code(dev,mapped_file,file_length);
-		#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
+
 		if(rst_opt == OPT_SYSTEM_RESET) {
 			release_firmware(fw_entry);
 		}
-		#endif
 
 		if(rt_status != TRUE) {
 			goto download_firmware_fail;
diff --git a/drivers/staging/rtl8192su/r8192S_phy.c b/drivers/staging/rtl8192su/r8192S_phy.c
index 80a8e14906b4..5e922cb50c29 100644
--- a/drivers/staging/rtl8192su/r8192S_phy.c
+++ b/drivers/staging/rtl8192su/r8192S_phy.c
@@ -4678,29 +4678,15 @@ void InitialGain819xUsb(struct net_device *dev,	u8 Operation)
 
 	if(priv->up)
 	{
-	#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
 		queue_delayed_work(priv->priv_wq,&priv->initialgain_operate_wq,0);
-	#else
-		#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-		schedule_task(&priv->initialgain_operate_wq);
-		#else
-		queue_work(priv->priv_wq,&priv->initialgain_operate_wq);
-		#endif
-	#endif
 	}
 }
 
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
 extern void InitialGainOperateWorkItemCallBack(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,initialgain_operate_wq);
        struct net_device *dev = priv->ieee80211->dev;
-#else
-extern void InitialGainOperateWorkItemCallBack(struct net_device *dev)
-{
-	struct r8192_priv *priv = ieee80211_priv(dev);
-#endif
 #define SCAN_RX_INITIAL_GAIN	0x17
 #define POWER_DETECTION_TH	0x08
 	u32	BitMask;
diff --git a/drivers/staging/rtl8192su/r8192S_phy.h b/drivers/staging/rtl8192su/r8192S_phy.h
index 580a7c6a7609..b752fa35a7ae 100644
--- a/drivers/staging/rtl8192su/r8192S_phy.h
+++ b/drivers/staging/rtl8192su/r8192S_phy.h
@@ -121,11 +121,8 @@ extern	void 	PHY_IQCalibrateBcut(struct net_device* dev);
 extern	void 	PHY_IQCalibrate(struct net_device* dev);
 extern	void 	PHY_GetHWRegOriginalValue(struct net_device* dev);
 
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
 extern void 	InitialGainOperateWorkItemCallBack(struct work_struct *work);
-#else
-extern void 	InitialGainOperateWorkItemCallBack(struct net_device *dev);
-#endif
+
 void PHY_SetTxPowerLevel8192S(struct net_device* dev, u8  channel);
 void PHY_InitialGain8192S(struct net_device* dev,u8 Operation   );
 
diff --git a/drivers/staging/rtl8192su/r8192U.h b/drivers/staging/rtl8192su/r8192U.h
index 38c345fdc18e..2a9ccab7523a 100644
--- a/drivers/staging/rtl8192su/r8192U.h
+++ b/drivers/staging/rtl8192su/r8192U.h
@@ -39,9 +39,7 @@
 #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/ieee80211.h"
 
 #ifdef RTL8192SU
@@ -1555,11 +1553,7 @@ typedef struct r8192_priv
 //	spinlock_t irq_th_lock;
 	spinlock_t tx_lock;
 	spinlock_t 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
 
 	u16 irq_mask;
@@ -1619,11 +1613,9 @@ 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
 
@@ -1653,11 +1645,8 @@ typedef struct r8192_priv
 	u16 rts;
 
 	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 rtl819xUsb
@@ -1874,33 +1863,14 @@ typedef struct r8192_priv
 	u16		SifsTime;
 
 	//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
-	/* used for periodly scan */
-	struct tq_struct update_beacon_wq;
-	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
 //#ifdef RTL8192SU
 	//lzm add for 8192S
 	 u32 			IntrMask;
diff --git a/drivers/staging/rtl8192su/r8192U_core.c b/drivers/staging/rtl8192su/r8192U_core.c
index 287182a2dca3..d5a15bb42cbe 100644
--- a/drivers/staging/rtl8192su/r8192U_core.c
+++ b/drivers/staging/rtl8192su/r8192U_core.c
@@ -75,10 +75,6 @@ double __extendsfdf2(float a) {return a;}
 #include "r8192U_dm.h"
 //#include "r8192xU_phyreg.h"
 #include <linux/usb.h>
-// FIXME: check if 2.6.7 is ok
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,7))
-#define usb_kill_urb usb_unlink_urb
-#endif
 
 #ifdef CONFIG_RTL8192_PM
 #include "r8192U_pm.h"
@@ -102,10 +98,6 @@ double __extendsfdf2(float a) {return a;}
 #include "r8192U_dm.h"
 //#include "r8192xU_phyreg.h"
 #include <linux/usb.h>
-// FIXME: check if 2.6.7 is ok
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,7))
-#define usb_kill_urb usb_unlink_urb
-#endif
 
 #ifdef CONFIG_RTL8192_PM
 #include "r8192U_pm.h"
@@ -201,9 +193,7 @@ static struct usb_device_id rtl8192_usb_id_tbl[] = {
 };
 
 MODULE_LICENSE("GPL");
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
 MODULE_VERSION("V 1.1");
-#endif
 MODULE_DEVICE_TABLE(usb, rtl8192_usb_id_tbl);
 MODULE_DESCRIPTION("Linux driver for Realtek RTL8192 USB WiFi cards");
 
@@ -217,57 +207,34 @@ static int channels = 0x3fff;
 
 
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 9)
 module_param(ifname, charp, S_IRUGO|S_IWUSR );
 //module_param(hwseqnum,int, S_IRUGO|S_IWUSR);
 module_param(hwwep,int, S_IRUGO|S_IWUSR);
 module_param(channels,int, S_IRUGO|S_IWUSR);
-#else
-MODULE_PARM(ifname, "s");
-//MODULE_PARM(hwseqnum,"i");
-MODULE_PARM(hwwep,"i");
-MODULE_PARM(channels,"i");
-#endif
 
 MODULE_PARM_DESC(ifname," Net interface name, wlan%d=default");
 //MODULE_PARM_DESC(hwseqnum," Try to use hardware 802.11 header sequence numbers. Zero=default");
 MODULE_PARM_DESC(hwwep," Try to use hardware security support. ");
 MODULE_PARM_DESC(channels," Channel bitmask for specific locales. NYI");
 
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 static int __devinit rtl8192_usb_probe(struct usb_interface *intf,
 			 const struct usb_device_id *id);
 static void __devexit rtl8192_usb_disconnect(struct usb_interface *intf);
-#else
-static void *__devinit rtl8192_usb_probe(struct usb_device *udev,unsigned int ifnum,
-			 const struct usb_device_id *id);
-static void __devexit rtl8192_usb_disconnect(struct usb_device *udev, void *ptr);
-#endif
-
 
 static struct usb_driver rtl8192_usb_driver = {
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 15)
-	.owner		= THIS_MODULE,
-#endif
 	.name		= RTL819xU_MODULE_NAME,	          /* Driver name   */
 	.id_table	= rtl8192_usb_id_tbl,	          /* PCI_ID table  */
 	.probe		= rtl8192_usb_probe,	          /* probe fn      */
 	.disconnect	= rtl8192_usb_disconnect,	  /* remove fn     */
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)
 #ifdef CONFIG_RTL8192_PM
 	.suspend	= rtl8192U_suspend,	          /* PM suspend fn */
 	.resume		= rtl8192U_resume,                 /* PM resume fn  */
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 22)
 	.reset_resume   = rtl8192U_resume,                 /* PM reset resume fn  */
-#endif
 #else
 	.suspend	= NULL,			          /* PM suspend fn */
 	.resume      	= NULL,			          /* PM resume fn  */
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 22)
 	.reset_resume   = NULL,                 /* PM reset resume fn  */
 #endif
-#endif
-#endif
 };
 
 
@@ -686,13 +653,8 @@ inline void force_pci_posting(struct net_device *dev)
 static struct net_device_stats *rtl8192_stats(struct net_device *dev);
 void rtl8192_commit(struct net_device *dev);
 //void rtl8192_restart(struct net_device *dev);
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
 void rtl8192_restart(struct work_struct *work);
 //void rtl8192_rq_tx_ack(struct work_struct *work);
-#else
- void rtl8192_restart(struct net_device *dev);
-// //void rtl8192_rq_tx_ack(struct net_device *dev);
- #endif
 
 void watch_dog_timer_callback(unsigned long data);
 
@@ -1297,21 +1259,13 @@ static struct iw_statistics *r8192_get_wireless_stats(struct net_device *dev)
 void rtl8192_proc_module_init(void)
 {
 	RT_TRACE(COMP_INIT, "Initializing proc filesystem");
-#if(LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24))
-	rtl8192_proc=create_proc_entry(RTL819xU_MODULE_NAME, S_IFDIR, proc_net);
-#else
 	rtl8192_proc=create_proc_entry(RTL819xU_MODULE_NAME, S_IFDIR, init_net.proc_net);
-#endif
 }
 
 
 void rtl8192_proc_module_remove(void)
 {
-#if(LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24))
-	remove_proc_entry(RTL819xU_MODULE_NAME, proc_net);
-#else
 	remove_proc_entry(RTL819xU_MODULE_NAME, init_net.proc_net);
-#endif
 }
 
 
@@ -1533,11 +1487,7 @@ void tx_timeout(struct net_device *dev)
 	struct r8192_priv *priv = ieee80211_priv(dev);
 	//rtl8192_commit(dev);
 
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
 	schedule_work(&priv->reset_wq);
-#else
-	schedule_task(&priv->reset_wq);
-#endif
 	//DMESG("TXTIMEOUT");
 }
 
@@ -1672,12 +1622,7 @@ void rtl8192_set_chan(struct net_device *dev,short ch)
 #endif
 }
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
-static void rtl8192_rx_isr(struct urb *urb, struct pt_regs *regs);
-#else
 static void rtl8192_rx_isr(struct urb *urb);
-#endif
-//static void rtl8192_rx_isr(struct urb *rx_urb);
 
 u32 get_rxpacket_shiftbytes_819xusb(struct ieee80211_rx_stats *pstats)
 {
@@ -1704,11 +1649,7 @@ static int rtl8192_rx_initiate(struct net_device*dev)
                 skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL);
                 if (!skb)
                         break;
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	        entry = usb_alloc_urb(0, GFP_KERNEL);
-#else
-	        entry = usb_alloc_urb(0);
-#endif
                 if (!entry) {
                         kfree_skb(skb);
                         break;
@@ -1722,11 +1663,7 @@ static int rtl8192_rx_initiate(struct net_device*dev)
                 info->dev = dev;
 		info->out_pipe = 3; //denote rx normal packet queue
                 skb_queue_tail(&priv->rx_queue, skb);
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
                 usb_submit_urb(entry, GFP_KERNEL);
-#else
-                usb_submit_urb(entry);
-#endif
         }
 
 	/* command packet rx procedure */
@@ -1735,11 +1672,7 @@ static int rtl8192_rx_initiate(struct net_device*dev)
                 skb = __dev_alloc_skb(RX_URB_SIZE ,GFP_KERNEL);
                 if (!skb)
                         break;
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
                 entry = usb_alloc_urb(0, GFP_KERNEL);
-#else
-                entry = usb_alloc_urb(0);
-#endif
                 if (!entry) {
                         kfree_skb(skb);
                         break;
@@ -1752,11 +1685,7 @@ static int rtl8192_rx_initiate(struct net_device*dev)
                 info->dev = dev;
 		   info->out_pipe = 9; //denote rx cmd packet queue
                 skb_queue_tail(&priv->rx_queue, skb);
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 		usb_submit_urb(entry, GFP_KERNEL);
-#else
-		usb_submit_urb(entry);
-#endif
         }
 
         return 0;
@@ -2083,13 +2012,7 @@ inline u16 rtl8192_rate2rate(short rate)
 	return rtl_rate[rate];
 }
 
-
-/* The protype of rx_isr has changed since one verion of Linux Kernel */
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
-static void rtl8192_rx_isr(struct urb *urb, struct pt_regs *regs)
-#else
 static void rtl8192_rx_isr(struct urb *urb)
-#endif
 {
         struct sk_buff *skb = (struct sk_buff *) urb->context;
         struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
@@ -2107,20 +2030,8 @@ static void rtl8192_rx_isr(struct urb *urb)
 	//	printk("%s():rx status err\n",__FUNCTION__);
                 return;
         }
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,14)
+
         skb_unlink(skb, &priv->rx_queue);
-#else
-	/*
-	 * __skb_unlink before linux2.6.14 does not use spinlock to protect list head.
-	 * add spinlock function manually. john,2008/12/03
-	 */
-	{
-		unsigned long flags;
-		spin_lock_irqsave(&(priv->rx_queue.lock), flags);
-		__skb_unlink(skb,&priv->rx_queue);
-		spin_unlock_irqrestore(&(priv->rx_queue.lock), flags);
-	}
-#endif
         skb_put(skb, urb->actual_length);
 
 	skb_queue_tail(&priv->skb_queue, skb);
@@ -2146,11 +2057,7 @@ static void rtl8192_rx_isr(struct urb *urb)
         urb->transfer_buffer = skb->tail;
         urb->context = skb;
         skb_queue_tail(&priv->rx_queue, skb);
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
         err = usb_submit_urb(urb, GFP_ATOMIC);
-#else
-        err = usb_submit_urb(urb);
-#endif
 	if(err && err != EPERM)
 		printk("can not submit rxurb, err is %x,URB status is %x\n",err,urb->status);
 }
@@ -2300,11 +2207,7 @@ u8 QueryIsShort(u8 TxHT, u8 TxRate, cb_desc *tcb_desc);
 u8 MapHwQueueToFirmwareQueue(u8 QueueID);
 struct sk_buff *DrvAggr_Aggregation(struct net_device *dev, struct ieee80211_drv_agg_txb *pSendList)
 {
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
 	struct ieee80211_device *ieee = netdev_priv(dev);
-#else
-	struct ieee80211_device *ieee = (struct ieee80211_device *)dev->priv;
-#endif
 	struct r8192_priv *priv = ieee80211_priv(dev);
 	cb_desc 	*tcb_desc = NULL;
 	u8 		i;
@@ -2517,11 +2420,7 @@ struct sk_buff *DrvAggr_Aggregation(struct net_device *dev, struct ieee80211_drv
 u8 DrvAggr_GetAggregatibleList(struct net_device *dev, struct sk_buff *skb,
 		struct ieee80211_drv_agg_txb *pSendList)
 {
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
 	struct ieee80211_device *ieee = netdev_priv(dev);
-#else
-	struct ieee80211_device *ieee = (struct ieee80211_device *)dev->priv;
-#endif
 	PRT_HIGH_THROUGHPUT	pHTInfo = ieee->pHTInfo;
 	u16		nMaxAggrNum = pHTInfo->UsbTxAggrNum;
 	cb_desc 	*tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
@@ -2540,11 +2439,7 @@ u8 DrvAggr_GetAggregatibleList(struct net_device *dev, struct sk_buff *skb,
 }
 #endif
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
-static void rtl8192_tx_isr(struct urb *tx_urb, struct pt_regs *reg)
-#else
 static void rtl8192_tx_isr(struct urb *tx_urb)
-#endif
 {
 	struct sk_buff *skb = (struct sk_buff*)tx_urb->context;
 	struct net_device *dev = NULL;
@@ -3036,11 +2931,7 @@ short rtl8192SU_tx_cmd(struct net_device *dev, struct sk_buff *skb)
 	//printk("\n %s::::::::::::::::::::::queue_index = %d\n",__FUNCTION__, queue_index);
 	atomic_inc(&priv->tx_pending[queue_index]);
 
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	tx_urb = usb_alloc_urb(0,GFP_ATOMIC);
-#else
-	tx_urb = usb_alloc_urb(0);
-#endif
 	if(!tx_urb){
 		dev_kfree_skb(skb);
 		return -ENOMEM;
@@ -3076,12 +2967,7 @@ short rtl8192SU_tx_cmd(struct net_device *dev, struct sk_buff *skb)
 	                            rtl8192_tx_isr,
 	                            skb);
 
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	status = usb_submit_urb(tx_urb, GFP_ATOMIC);
-#else
-	status = usb_submit_urb(tx_urb);
-#endif
-
 	if (!status){
 		return 0;
 	}else{
@@ -3105,11 +2991,8 @@ short rtl819xU_tx_cmd(struct net_device *dev, struct sk_buff *skb)
 
 	//printk("\n %s::queue_index = %d\n",__FUNCTION__, queue_index);
 	atomic_inc(&priv->tx_pending[queue_index]);
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
+
 	tx_urb = usb_alloc_urb(0,GFP_ATOMIC);
-#else
-	tx_urb = usb_alloc_urb(0);
-#endif
 	if(!tx_urb){
 		dev_kfree_skb(skb);
 		return -ENOMEM;
@@ -3143,12 +3026,7 @@ short rtl819xU_tx_cmd(struct net_device *dev, struct sk_buff *skb)
 	usb_fill_bulk_urb(tx_urb,priv->udev, usb_sndbulkpipe(priv->udev,idx_pipe), \
 			skb->data, skb->len, rtl8192_tx_isr, skb);
 
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	status = usb_submit_urb(tx_urb, GFP_ATOMIC);
-#else
-	status = usb_submit_urb(tx_urb);
-#endif
-
 	if (!status){
 		return 0;
 	}else{
@@ -3333,11 +3211,7 @@ u8 QueryIsShort(u8 TxHT, u8 TxRate, cb_desc *tcb_desc)
 	return tmp_Short;
 }
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
-static void tx_zero_isr(struct urb *tx_urb, struct pt_regs *reg)
-#else
 static void tx_zero_isr(struct urb *tx_urb)
-#endif
 {
 	return;
 }
@@ -3401,11 +3275,7 @@ short rtl8192SU_tx(struct net_device *dev, struct sk_buff* skb)
 		return -1;
 	}
 
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	tx_urb = usb_alloc_urb(0,GFP_ATOMIC);
-#else
-	tx_urb = usb_alloc_urb(0);
-#endif
 	if(!tx_urb){
 		dev_kfree_skb_any(skb);
 		return -ENOMEM;
@@ -3674,11 +3544,7 @@ short rtl8192SU_tx(struct net_device *dev, struct sk_buff* skb)
 				    skb->data,
 				    skb->len, rtl8192_tx_isr, skb);
 
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	status = usb_submit_urb(tx_urb, GFP_ATOMIC);
-#else
-	status = usb_submit_urb(tx_urb);
-#endif
 	if (!status){
 //we need to send 0 byte packet whenever 512N bytes/64N(HIGN SPEED/NORMAL SPEED) bytes packet has been transmitted. Otherwise, it will be halt to wait for another packet. WB. 2008.08.27
 		bool bSend0Byte = false;
@@ -3696,11 +3562,7 @@ short rtl8192SU_tx(struct net_device *dev, struct sk_buff* skb)
 		if (bSend0Byte)
 		{
 #if 1
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 			tx_urb_zero = usb_alloc_urb(0,GFP_ATOMIC);
-#else
-			tx_urb_zero = usb_alloc_urb(0);
-#endif
 			if(!tx_urb_zero){
 				RT_TRACE(COMP_ERR, "can't alloc urb for zero byte\n");
 				return -ENOMEM;
@@ -3708,11 +3570,7 @@ short rtl8192SU_tx(struct net_device *dev, struct sk_buff* skb)
 			usb_fill_bulk_urb(tx_urb_zero,udev,
 					usb_sndbulkpipe(udev,idx_pipe), &zero,
 					0, tx_zero_isr, dev);
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 			status = usb_submit_urb(tx_urb_zero, GFP_ATOMIC);
-#else
-			status = usb_submit_urb(tx_urb_zero);
-#endif
 			if (status){
 			RT_TRACE(COMP_ERR, "Error TX URB for zero byte %d, error %d", atomic_read(&priv->tx_pending[tcb_desc->queue_index]), status);
 			return -1;
@@ -3780,11 +3638,7 @@ short rtl8192_tx(struct net_device *dev, struct sk_buff* skb)
 		return -1;
 	}
 
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	tx_urb = usb_alloc_urb(0,GFP_ATOMIC);
-#else
-	tx_urb = usb_alloc_urb(0);
-#endif
 	if(!tx_urb){
 		dev_kfree_skb_any(skb);
 		return -ENOMEM;
@@ -3972,11 +3826,7 @@ short rtl8192_tx(struct net_device *dev, struct sk_buff* skb)
 			usb_sndbulkpipe(udev,idx_pipe), skb->data,
 			skb->len, rtl8192_tx_isr, skb);
 
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	status = usb_submit_urb(tx_urb, GFP_ATOMIC);
-#else
-	status = usb_submit_urb(tx_urb);
-#endif
 	if (!status){
 //we need to send 0 byte packet whenever 512N bytes/64N(HIGN SPEED/NORMAL SPEED) bytes packet has been transmitted. Otherwise, it will be halt to wait for another packet. WB. 2008.08.27
 		bool bSend0Byte = false;
@@ -3994,11 +3844,7 @@ short rtl8192_tx(struct net_device *dev, struct sk_buff* skb)
 		if (bSend0Byte)
 		{
 #if 1
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 			tx_urb_zero = usb_alloc_urb(0,GFP_ATOMIC);
-#else
-			tx_urb_zero = usb_alloc_urb(0);
-#endif
 			if(!tx_urb_zero){
 				RT_TRACE(COMP_ERR, "can't alloc urb for zero byte\n");
 				return -ENOMEM;
@@ -4006,11 +3852,7 @@ short rtl8192_tx(struct net_device *dev, struct sk_buff* skb)
 			usb_fill_bulk_urb(tx_urb_zero,udev,
 					usb_sndbulkpipe(udev,idx_pipe), &zero,
 					0, tx_zero_isr, dev);
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 			status = usb_submit_urb(tx_urb_zero, GFP_ATOMIC);
-#else
-			status = usb_submit_urb(tx_urb_zero);
-#endif
 			if (status){
 			RT_TRACE(COMP_ERR, "Error TX URB for zero byte %d, error %d", atomic_read(&priv->tx_pending[tcb_desc->queue_index]), status);
 			return -1;
@@ -4333,16 +4175,10 @@ static struct ieee80211_qos_parameters def_qos_parameters = {
 };
 
 
-#if LINUX_VERSION_CODE >=KERNEL_VERSION(2,6,20)
 void rtl8192_update_beacon(struct work_struct * work)
 {
         struct r8192_priv *priv = container_of(work, struct r8192_priv, update_beacon_wq.work);
         struct net_device *dev = priv->ieee80211->dev;
-#else
-void rtl8192_update_beacon(struct net_device *dev)
-{
-        struct r8192_priv *priv = ieee80211_priv(dev);
-#endif
  	struct ieee80211_device* ieee = priv->ieee80211;
 	struct ieee80211_network* net = &ieee->current_network;
 
@@ -4357,16 +4193,11 @@ void rtl8192_update_beacon(struct net_device *dev)
 * background support to run QoS activate functionality
 */
 int WDCAPARA_ADD[] = {EDCAPARA_BE,EDCAPARA_BK,EDCAPARA_VI,EDCAPARA_VO};
-#if LINUX_VERSION_CODE >=KERNEL_VERSION(2,6,20)
+
 void rtl8192_qos_activate(struct work_struct * work)
 {
         struct r8192_priv *priv = container_of(work, struct r8192_priv, qos_activate);
         struct net_device *dev = priv->ieee80211->dev;
-#else
-void rtl8192_qos_activate(struct net_device *dev)
-{
-        struct r8192_priv *priv = ieee80211_priv(dev);
-#endif
         struct ieee80211_qos_parameters *qos_parameters = &priv->ieee80211->current_network.qos_data.parameters;
         u8 mode = priv->ieee80211->current_network.mode;
         //u32 size = sizeof(struct ieee80211_qos_parameters);
@@ -4377,11 +4208,8 @@ void rtl8192_qos_activate(struct net_device *dev)
         if (priv == NULL)
                 return;
 
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,16))
-	down(&priv->mutex);
-#else
        mutex_lock(&priv->mutex);
-#endif
+
         if(priv->ieee80211->state != IEEE80211_LINKED)
 		goto success;
 	RT_TRACE(COMP_QOS,"qos active process with associate response received\n");
@@ -4401,11 +4229,7 @@ void rtl8192_qos_activate(struct net_device *dev)
 	}
 
 success:
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,16))
-	up(&priv->mutex);
-#else
        mutex_unlock(&priv->mutex);
-#endif
 }
 
 static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv,
@@ -4432,11 +4256,7 @@ static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv,
 				 network->qos_data.param_count)) {
 			network->qos_data.old_param_count =
 				network->qos_data.param_count;
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 			queue_work(priv->priv_wq, &priv->qos_activate);
-#else
-			schedule_task(&priv->qos_activate);
-#endif
 			RT_TRACE (COMP_QOS, "QoS parameters change call "
 					"qos_activate\n");
 		}
@@ -4445,11 +4265,7 @@ static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv,
 		       &def_qos_parameters, size);
 
 		if ((network->qos_data.active == 1) && (active_network == 1)) {
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 			queue_work(priv->priv_wq, &priv->qos_activate);
-#else
-			schedule_task(&priv->qos_activate);
-#endif
 			RT_TRACE(COMP_QOS, "QoS was disabled call qos_activate \n");
 		}
 		network->qos_data.active = 0;
@@ -4467,16 +4283,8 @@ static int rtl8192_handle_beacon(struct net_device * dev,
 	struct r8192_priv *priv = ieee80211_priv(dev);
 
 	rtl8192_qos_handle_probe_response(priv,1,network);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
 	queue_delayed_work(priv->priv_wq, &priv->update_beacon_wq, 0);
-#else
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-	schedule_task(&priv->update_beacon_wq);
-#else
-	queue_work(priv->priv_wq, &priv->update_beacon_wq);
-#endif
 
-#endif
 	return 0;
 
 }
@@ -4533,12 +4341,7 @@ static int rtl8192_qos_association_resp(struct r8192_priv *priv,
 
 	RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n",__FUNCTION__,network->flags ,priv->ieee80211->current_network.qos_data.active);
 	if (set_qos_param == 1)
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 		queue_work(priv->priv_wq, &priv->qos_activate);
-#else
-		schedule_task(&priv->qos_activate);
-#endif
-
 
         return ret;
 }
@@ -4793,7 +4596,7 @@ void rtl8192_hw_sleep_down(struct net_device *dev)
 //	MgntActSet_RF_State(dev, eRfSleep, RF_CHANGE_BY_PS);
 #endif
 }
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
+
 void rtl8192_hw_sleep_wq (struct work_struct *work)
 {
 //      struct r8180_priv *priv = container_of(work, struct r8180_priv, watch_dog_wq);
@@ -4802,10 +4605,7 @@ void rtl8192_hw_sleep_wq (struct work_struct *work)
         struct delayed_work *dwork = container_of(work,struct delayed_work,work);
         struct ieee80211_device *ieee = container_of(dwork,struct ieee80211_device,hw_sleep_wq);
         struct net_device *dev = ieee->dev;
-#else
-void rtl8192_hw_sleep_wq(struct net_device* dev)
-{
-#endif
+
 	//printk("=========>%s()\n", __FUNCTION__);
         rtl8192_hw_sleep_down(dev);
 }
@@ -4823,7 +4623,7 @@ void rtl8192_hw_wakeup(struct net_device* dev)
 	//FIXME: will we send package stored while nic is sleep?
 //	spin_unlock_irqrestore(&priv->ps_lock,flags);
 }
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
+
 void rtl8192_hw_wakeup_wq (struct work_struct *work)
 {
 //	struct r8180_priv *priv = container_of(work, struct r8180_priv, watch_dog_wq);
@@ -4832,12 +4632,8 @@ void rtl8192_hw_wakeup_wq (struct work_struct *work)
 	struct delayed_work *dwork = container_of(work,struct delayed_work,work);
 	struct ieee80211_device *ieee = container_of(dwork,struct ieee80211_device,hw_wakeup_wq);
 	struct net_device *dev = ieee->dev;
-#else
-void rtl8192_hw_wakeup_wq(struct net_device* dev)
-{
-#endif
-	rtl8192_hw_wakeup(dev);
 
+	rtl8192_hw_wakeup(dev);
 }
 
 #define MIN_SLEEP_TIME 50
@@ -4881,11 +4677,7 @@ void rtl8192_hw_to_sleep(struct net_device *dev, u32 th, u32 tl)
 		u32 tmp = (tl>rb)?(tl-rb):(rb-tl);
 	//	if (tl<rb)
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-		schedule_task(&priv->ieee80211->hw_wakeup_wq);
-#else
 		queue_delayed_work(priv->ieee80211->wq, &priv->ieee80211->hw_wakeup_wq, tmp); //as tl may be less than rb
-#endif
 	}
 	/* if we suspect the TimerInt is gone beyond tl
 	 * while setting it, then give up
@@ -4902,11 +4694,8 @@ void rtl8192_hw_to_sleep(struct net_device *dev, u32 th, u32 tl)
 //		priv->rf_sleep(dev);
 
 	//printk("<=========%s()\n", __FUNCTION__);
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-	schedule_task(&priv->ieee80211->hw_sleep_wq);
-#else
 	queue_delayed_work(priv->ieee80211->wq, (void *)&priv->ieee80211->hw_sleep_wq,0);
-#endif
+
 	spin_unlock_irqrestore(&priv->ps_lock,flags);
 }
 //init priv variables here. only non_zero value should be initialized here.
@@ -5113,18 +4902,10 @@ static void rtl8192_init_priv_lock(struct r8192_priv* priv)
 	sema_init(&priv->wx_sem,1);
 	sema_init(&priv->rf_sem,1);
 	spin_lock_init(&priv->ps_lock);
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,16))
-	sema_init(&priv->mutex, 1);
-#else
 	mutex_init(&priv->mutex);
-#endif
 }
 
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
 extern  void    rtl819x_watchdog_wqcallback(struct work_struct *work);
-#else
-extern  void    rtl819x_watchdog_wqcallback(struct net_device *dev);
-#endif
 
 void rtl8192_irq_rx_tasklet(struct r8192_priv *priv);
 //init tasklet and wait_queue here. only 2.6 above kernel is considered
@@ -5133,15 +4914,12 @@ static void rtl8192_init_priv_task(struct net_device* dev)
 {
 	struct r8192_priv *priv = ieee80211_priv(dev);
 
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 #ifdef PF_SYNCTHREAD
 	priv->priv_wq = create_workqueue(DRV_NAME,0);
 #else
 	priv->priv_wq = create_workqueue(DRV_NAME);
 #endif
-#endif
 
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
 	INIT_WORK(&priv->reset_wq, rtl8192_restart);
 
 	//INIT_DELAYED_WORK(&priv->watch_dog_wq, hal_dm_watchdog);
@@ -5157,36 +4935,6 @@ static void rtl8192_init_priv_task(struct net_device* dev)
 	INIT_DELAYED_WORK(&priv->ieee80211->hw_wakeup_wq,(void*) rtl8192_hw_wakeup_wq);
 	INIT_DELAYED_WORK(&priv->ieee80211->hw_sleep_wq,(void*) rtl8192_hw_sleep_wq);
 
-#else
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
-	tq_init(&priv->reset_wq, (void*)rtl8192_restart, dev);
-	tq_init(&priv->watch_dog_wq, (void*)rtl819x_watchdog_wqcallback, dev);
-	tq_init(&priv->txpower_tracking_wq, (void*)dm_txpower_trackingcallback, dev);
-	tq_init(&priv->rfpath_check_wq, (void*)dm_rf_pathcheck_workitemcallback, dev);
-	tq_init(&priv->update_beacon_wq, (void*)rtl8192_update_beacon, dev);
-	//tq_init(&priv->SwChnlWorkItem, (void*) rtl8192_SwChnl_WorkItem, dev);
-	//tq_init(&priv->SetBWModeWorkItem, (void*)rtl8192_SetBWModeWorkItem, dev);
-	tq_init(&priv->qos_activate, (void *)rtl8192_qos_activate, dev);
-	tq_init(&priv->ieee80211->hw_wakeup_wq,(void*) rtl8192_hw_wakeup_wq, dev);
-	tq_init(&priv->ieee80211->hw_sleep_wq,(void*) rtl8192_hw_sleep_wq, dev);
-
-#else
-	INIT_WORK(&priv->reset_wq,(void(*)(void*)) rtl8192_restart,dev);
-	//INIT_WORK(&priv->watch_dog_wq, (void(*)(void*)) hal_dm_watchdog,dev);
-	INIT_WORK(&priv->watch_dog_wq, (void(*)(void*)) rtl819x_watchdog_wqcallback,dev);
-	INIT_WORK(&priv->txpower_tracking_wq, (void(*)(void*)) dm_txpower_trackingcallback,dev);
-//	INIT_WORK(&priv->gpio_change_rf_wq, (void(*)(void*)) dm_gpio_change_rf_callback,dev);
-	INIT_WORK(&priv->rfpath_check_wq, (void(*)(void*)) dm_rf_pathcheck_workitemcallback,dev);
-	INIT_WORK(&priv->update_beacon_wq, (void(*)(void*))rtl8192_update_beacon,dev);
-	INIT_WORK(&priv->initialgain_operate_wq, (void(*)(void*))InitialGainOperateWorkItemCallBack,dev);
-	//INIT_WORK(&priv->SwChnlWorkItem, (void(*)(void*)) rtl8192_SwChnl_WorkItem, dev);
-	//INIT_WORK(&priv->SetBWModeWorkItem, (void(*)(void*)) rtl8192_SetBWModeWorkItem, dev);
-	INIT_WORK(&priv->qos_activate, (void(*)(void *))rtl8192_qos_activate, dev);
-	INIT_WORK(&priv->ieee80211->hw_wakeup_wq,(void*) rtl8192_hw_wakeup_wq, dev);
-	INIT_WORK(&priv->ieee80211->hw_sleep_wq,(void*) rtl8192_hw_sleep_wq, dev);
-#endif
-#endif
-
 	tasklet_init(&priv->irq_rx_tasklet,
 	     (void(*)(unsigned long))rtl8192_irq_rx_tasklet,
 	     (unsigned long)priv);
@@ -9092,9 +8840,7 @@ RESET_START:
 			printk("ieee->state is IEEE80211_LINKED\n");
 			ieee80211_stop_send_beacons(priv->ieee80211);
 			del_timer_sync(&ieee->associate_timer);
-			#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 			cancel_delayed_work(&ieee->associate_retry_wq);
-			#endif
 			ieee80211_stop_scan(ieee);
 			netif_carrier_off(dev);
 			up(&ieee->wx_sem);
@@ -9131,11 +8877,7 @@ RESET_START:
 			ieee->set_chan(ieee->dev, ieee->current_network.channel);
 
 #if 1
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 			queue_work(ieee->wq, &ieee->associate_complete_wq);
-#else
-			schedule_task(&ieee->associate_complete_wq);
-#endif
 #endif
 
 		}
@@ -9231,18 +8973,11 @@ void rtl819x_update_rxcounts(
 	}
 }
 
-
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
 extern	void	rtl819x_watchdog_wqcallback(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,watch_dog_wq);
        struct net_device *dev = priv->ieee80211->dev;
-#else
-extern	void	rtl819x_watchdog_wqcallback(struct net_device *dev)
-{
-	struct r8192_priv *priv = ieee80211_priv(dev);
-#endif
 	struct ieee80211_device* ieee = priv->ieee80211;
 	RESET_TYPE	ResetType = RESET_TYPE_NORESET;
       	static u8	check_reset_cnt=0;
@@ -9288,12 +9023,7 @@ extern	void	rtl819x_watchdog_wqcallback(struct net_device *dev)
 				RemovePeerTS(priv->ieee80211,priv->ieee80211->current_network.bssid);
 				ieee->is_roaming = true;
 				priv->ieee80211->link_change(dev);
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
                                 queue_work(priv->ieee80211->wq, &priv->ieee80211->associate_procedure_wq);
-#else
-                                schedule_task(&priv->ieee80211->associate_procedure_wq);
-#endif
-
 			}
 		}
 		priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod=0;
@@ -9328,15 +9058,7 @@ void watch_dog_timer_callback(unsigned long data)
 {
 	struct r8192_priv *priv = ieee80211_priv((struct net_device *) data);
 	//printk("===============>watch_dog  timer\n");
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
 	queue_delayed_work(priv->priv_wq,&priv->watch_dog_wq, 0);
-#else
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-	schedule_task(&priv->watch_dog_wq);
-#else
-	queue_work(priv->priv_wq,&priv->watch_dog_wq);
-#endif
-#endif
 	mod_timer(&priv->watch_dog_timer, jiffies + MSECS(IEEE80211_WATCH_DOG_TIME));
 #if 0
 	priv->watch_dog_timer.expires = jiffies + MSECS(IEEE80211_WATCH_DOG_TIME);
@@ -9488,17 +9210,10 @@ void rtl8192_restart(struct net_device *dev)
 {
 	struct r8192_priv *priv = ieee80211_priv(dev);
 */
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
 void rtl8192_restart(struct work_struct *work)
 {
         struct r8192_priv *priv = container_of(work, struct r8192_priv, reset_wq);
         struct net_device *dev = priv->ieee80211->dev;
-#else
-void rtl8192_restart(struct net_device *dev)
-{
-
-        struct r8192_priv *priv = ieee80211_priv(dev);
-#endif
 
 	down(&priv->wx_sem);
 
@@ -9537,11 +9252,8 @@ int r8192_set_mac_adr(struct net_device *dev, void *mac)
 
 	memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
 
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
 	schedule_work(&priv->reset_wq);
-#else
-	schedule_task(&priv->reset_wq);
-#endif
+
 	up(&priv->wx_sem);
 
 	return 0;
@@ -12038,7 +11750,6 @@ void rtl8192_irq_rx_tasklet(struct r8192_priv *priv)
 /****************************************************************************
      ---------------------------- USB_STUFF---------------------------
 *****************************************************************************/
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 //LZM Merge from windows HalUsbSetQueuePipeMapping8192SUsb 090319
 static void HalUsbSetQueuePipeMapping8192SUsb(struct usb_interface *intf, struct net_device *dev)
 {
@@ -12058,7 +11769,6 @@ static void HalUsbSetQueuePipeMapping8192SUsb(struct usb_interface *intf, struct
 
 	for (i = 0; i < priv->ep_num; ++i) {
 		endpoint = &iface_desc->endpoint[i].desc;
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,23)
 		if (usb_endpoint_is_bulk_in(endpoint)) {
 			priv->RtInPipes[priv->ep_in_num] = usb_endpoint_num(endpoint);
 			priv->ep_in_num ++;
@@ -12068,19 +11778,6 @@ static void HalUsbSetQueuePipeMapping8192SUsb(struct usb_interface *intf, struct
 			priv->ep_out_num ++;
 			//printk("out_endpoint_idx = %d\n", usb_endpoint_num(endpoint));
 		}
-#else
-		if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) &&
-		     ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_BULK)) {
-			/* we found a bulk in endpoint */
-			priv->RtInPipes[priv->ep_in_num] = (endpoint->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
-			priv->ep_in_num ++;
-		} else if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) &&
-		     ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_BULK)) {
-			/* We found bulk out endpoint */
-			priv->RtOutPipes[priv->ep_out_num] = endpoint->bEndpointAddress;
-			priv->ep_out_num ++;
-			}
-#endif
 	}
 	{
 		memset(priv->txqueue_to_outpipemap,0,9);
@@ -12130,7 +11827,6 @@ static void HalUsbSetQueuePipeMapping8192SUsb(struct usb_interface *intf, struct
 
 	return;
 }
-#endif
 
 static const struct net_device_ops rtl8192_netdev_ops = {
 	.ndo_open		= rtl8192_open,
@@ -12145,50 +11841,26 @@ static const struct net_device_ops rtl8192_netdev_ops = {
 	.ndo_start_xmit		= rtl8192_ieee80211_xmit,
 };
 
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 static int __devinit rtl8192_usb_probe(struct usb_interface *intf,
 			 const struct usb_device_id *id)
-#else
-static void * __devinit rtl8192_usb_probe(struct usb_device *udev,
-			                unsigned int ifnum,
-			          const struct usb_device_id *id)
-#endif
 {
 //	unsigned long ioaddr = 0;
 	struct net_device *dev = NULL;
 	struct r8192_priv *priv= NULL;
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	struct usb_device *udev = interface_to_usbdev(intf);
-#endif
+
         RT_TRACE(COMP_INIT, "Oops: i'm coming\n");
 
 	dev = alloc_ieee80211(sizeof(struct r8192_priv));
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)
-	SET_MODULE_OWNER(dev);
-#endif
-
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	usb_set_intfdata(intf, dev);
 	SET_NETDEV_DEV(dev, &intf->dev);
-#endif
 	priv = ieee80211_priv(dev);
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	priv->ieee80211 = netdev_priv(dev);
-#else
-	priv->ieee80211 = (struct net_device *)dev->priv;
-#endif
 	priv->udev=udev;
 
 #ifdef RTL8192SU
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	HalUsbSetQueuePipeMapping8192SUsb(intf, dev);
-#else//use one pipe
-	{
-		memset(priv->txqueue_to_outpipemap,0,9);
-		memset(priv->RtOutPipes,4,16);//all use endpoint 4 for out
-	}
-#endif
 #endif
 
 #ifdef RTL8192SU
@@ -12234,29 +11906,17 @@ static void * __devinit rtl8192_usb_probe(struct usb_device *udev,
 
 
 	RT_TRACE(COMP_INIT, "Driver probe completed\n");
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-	return dev;
-#else
 	return 0;
-#endif
-
-
 fail:
 	free_ieee80211(dev);
 
 	RT_TRACE(COMP_ERR, "wlan driver load failed\n");
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-	return NULL;
-#else
 	return -ENODEV;
-#endif
-
 }
 
 //detach all the work and timer structure declared or inititialize in r8192U_init function.
 void rtl8192_cancel_deferred_work(struct r8192_priv* priv)
 {
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22)
 	cancel_work_sync(&priv->reset_wq);
 	cancel_work_sync(&priv->qos_activate);
 	cancel_delayed_work(&priv->watch_dog_wq);
@@ -12265,35 +11925,11 @@ void rtl8192_cancel_deferred_work(struct r8192_priv* priv)
 	cancel_delayed_work(&priv->ieee80211->hw_sleep_wq);
 	//cancel_work_sync(&priv->SetBWModeWorkItem);
 	//cancel_work_sync(&priv->SwChnlWorkItem);
-#else
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
-	cancel_delayed_work(&priv->reset_wq);
-	cancel_delayed_work(&priv->qos_activate);
-	cancel_delayed_work(&priv->watch_dog_wq);
-	cancel_delayed_work(&priv->update_beacon_wq);
-	cancel_delayed_work(&priv->ieee80211->hw_wakeup_wq);
-	cancel_delayed_work(&priv->ieee80211->hw_sleep_wq);
-
-	//cancel_delayed_work(&priv->SetBWModeWorkItem);
-	//cancel_delayed_work(&priv->SwChnlWorkItem);
-#endif
-#endif
-
 }
 
-
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 static void __devexit rtl8192_usb_disconnect(struct usb_interface *intf)
-#else
-static void __devexit rtl8192_usb_disconnect(struct usb_device *udev, void *ptr)
-#endif
 {
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	struct net_device *dev = usb_get_intfdata(intf);
-#else
-	struct net_device *dev = (struct net_device *)ptr;
-#endif
-
 	struct r8192_priv *priv = ieee80211_priv(dev);
  	if(dev){
 
@@ -12310,9 +11946,7 @@ static void __devexit rtl8192_usb_disconnect(struct usb_device *udev, void *ptr)
 		}
 	//	priv->rf_close(dev);
 //		rtl8192_SetRFPowerState(dev, eRfOff);
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
 		destroy_workqueue(priv->priv_wq);
-#endif
 		//rtl8192_irq_disable(dev);
 		//rtl8192_reset(dev);
 		mdelay(10);
diff --git a/drivers/staging/rtl8192su/r8192U_dm.c b/drivers/staging/rtl8192su/r8192U_dm.c
index 304274b886ea..7902f623f8fc 100644
--- a/drivers/staging/rtl8192su/r8192U_dm.c
+++ b/drivers/staging/rtl8192su/r8192U_dm.c
@@ -98,12 +98,7 @@ 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);
 extern	void	dm_backup_dynamic_mechanism_state(struct net_device *dev);
@@ -118,11 +113,7 @@ 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);
@@ -1180,17 +1171,11 @@ static void dm_TXPowerTrackingCallback_ThermalMeter(struct net_device * dev)
 	priv->txpower_count = 0;
 }
 
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
 extern	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)
-{
-	struct r8192_priv *priv = ieee80211_priv(dev);
-#endif
 
 #ifdef RTL8190P
 	dm_TXPowerTrackingCallback_TSSI(dev);
@@ -1754,15 +1739,7 @@ static void dm_CheckTXPowerTracking_TSSI(struct net_device *dev)
 	{
 	 	if((tx_power_track_counter % 30 == 0)&&(tx_power_track_counter != 0))
 	 	{
-	 		#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++;
 	}
@@ -1821,15 +1798,7 @@ 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;
 	}
 #endif
@@ -3345,15 +3314,7 @@ 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 */
@@ -3442,17 +3403,11 @@ 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))
 extern	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;
@@ -3520,17 +3475,11 @@ 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))
 extern	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;
 
@@ -3855,15 +3804,8 @@ 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 */
 
 
diff --git a/drivers/staging/rtl8192su/r8192U_dm.h b/drivers/staging/rtl8192su/r8192U_dm.h
index 1e05d7579882..c21c2d864ac4 100644
--- a/drivers/staging/rtl8192su/r8192U_dm.h
+++ b/drivers/staging/rtl8192su/r8192U_dm.h
@@ -275,11 +275,7 @@ extern  void deinit_hal_dm(struct net_device *dev);
 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_restore_dynamic_mechanism_state(struct net_device *dev);
 extern  void    dm_backup_dynamic_mechanism_state(struct net_device *dev);
 extern  void    dm_change_dynamic_initgain_thresh(struct net_device *dev,
@@ -287,11 +283,7 @@ extern  void    dm_change_dynamic_initgain_thresh(struct net_device *dev,
 extern  void    dm_force_tx_fw_info(struct net_device *dev,u32 force_type, 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_cck_txpower_adjust(struct net_device *dev,bool  binch14);
 #if 0
diff --git a/drivers/staging/rtl8192su/r8192U_pm.c b/drivers/staging/rtl8192su/r8192U_pm.c
index b1531a8d0cde..d095f7dff9e8 100644
--- a/drivers/staging/rtl8192su/r8192U_pm.c
+++ b/drivers/staging/rtl8192su/r8192U_pm.c
@@ -22,11 +22,8 @@ int rtl8192U_save_state (struct pci_dev *dev, u32 state)
 
 int rtl8192U_suspend(struct usb_interface *intf, pm_message_t state)
 {
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	struct net_device *dev = usb_get_intfdata(intf);
-#else
-	//struct net_device *dev = (struct net_device *)ptr;
-#endif
+
 	RT_TRACE(COMP_POWER, "============> r8192U suspend call.\n");
 
 	if(dev) {
@@ -48,11 +45,7 @@ int rtl8192U_suspend(struct usb_interface *intf, pm_message_t state)
 
 int rtl8192U_resume (struct usb_interface *intf)
 {
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 	struct net_device *dev = usb_get_intfdata(intf);
-#else
-	//struct net_device *dev = (struct net_device *)ptr;
-#endif
 
 	RT_TRACE(COMP_POWER, "================>r8192U resume call.");
 
diff --git a/drivers/staging/rtl8192su/r8192U_wx.c b/drivers/staging/rtl8192su/r8192U_wx.c
index 9b3c4db5d4ca..4568312a52ac 100644
--- a/drivers/staging/rtl8192su/r8192U_wx.c
+++ b/drivers/staging/rtl8192su/r8192U_wx.c
@@ -981,7 +981,6 @@ 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;
 	//printk("===>%s()\n", __FUNCTION__);
@@ -1065,22 +1064,19 @@ static int r8192_wx_set_enc_ext(struct net_device *dev,
 end_hw_sec:
 
 	up(&priv->wx_sem);
-#endif
 	return ret;
-
 }
 static int r8192_wx_set_auth(struct net_device *dev,
                                         struct iw_request_info *info,
                                         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;
 }
 
@@ -1091,13 +1087,10 @@ 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
@@ -1107,7 +1100,6 @@ 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
@@ -1115,7 +1107,6 @@ static int r8192_wx_set_gen_ie(struct net_device *dev,
 #endif
         up(&priv->wx_sem);
 	//printk("<======%s(), ret:%d\n", __FUNCTION__, ret);
-#endif
         return ret;
 
 
@@ -1311,11 +1302,7 @@ 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;
 	}
 
@@ -1327,11 +1314,7 @@ 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
diff --git a/drivers/staging/rtl8192su/r819xU_firmware.c b/drivers/staging/rtl8192su/r819xU_firmware.c
index 68ba5d4a6128..6a10bc11d97a 100644
--- a/drivers/staging/rtl8192su/r819xU_firmware.c
+++ b/drivers/staging/rtl8192su/r819xU_firmware.c
@@ -15,9 +15,8 @@
 #include "r8192U_hw.h"
 #include "r819xU_firmware_img.h"
 #include "r819xU_firmware.h"
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 #include <linux/firmware.h>
-#endif
+
 void firmware_init_param(struct net_device *dev)
 {
 	struct r8192_priv 	*priv = ieee80211_priv(dev);
@@ -338,11 +337,8 @@ 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.
@@ -351,7 +347,6 @@ bool init_firmware(struct net_device *dev)
 		if(rst_opt == OPT_SYSTEM_RESET) {
 			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->udev->dev);
 						if(rc < 0 ) {
@@ -382,16 +377,12 @@ 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:
diff --git a/drivers/staging/rtl8192su/r819xU_phy.c b/drivers/staging/rtl8192su/r819xU_phy.c
index 81b462aa1c3e..f8f7de8dd853 100644
--- a/drivers/staging/rtl8192su/r819xU_phy.c
+++ b/drivers/staging/rtl8192su/r819xU_phy.c
@@ -1726,29 +1726,15 @@ void InitialGain819xUsb(struct net_device *dev,	u8 Operation)
 
 	if(priv->up)
 	{
-	#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
 		queue_delayed_work(priv->priv_wq,&priv->initialgain_operate_wq,0);
-	#else
-		#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-		schedule_task(&priv->initialgain_operate_wq);
-		#else
-		queue_work(priv->priv_wq,&priv->initialgain_operate_wq);
-		#endif
-	#endif
 	}
 }
 
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
 extern void InitialGainOperateWorkItemCallBack(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,initialgain_operate_wq);
        struct net_device *dev = priv->ieee80211->dev;
-#else
-extern void InitialGainOperateWorkItemCallBack(struct net_device *dev)
-{
-	struct r8192_priv *priv = ieee80211_priv(dev);
-#endif
 #define SCAN_RX_INITIAL_GAIN	0x17
 #define POWER_DETECTION_TH	0x08
 	u32	BitMask;
diff --git a/drivers/staging/rtl8192su/r819xU_phy.h b/drivers/staging/rtl8192su/r819xU_phy.h
index c165ac1265d9..3e3bc577e6c3 100644
--- a/drivers/staging/rtl8192su/r819xU_phy.h
+++ b/drivers/staging/rtl8192su/r819xU_phy.h
@@ -85,10 +85,6 @@ extern bool rtl8192_SetRFPowerState(struct net_device *dev, RT_RF_POWER_STATE eR
 //added by amy
 extern void InitialGain819xUsb(struct net_device *dev,	u8 Operation);
 
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
 extern void InitialGainOperateWorkItemCallBack(struct work_struct *work);
-#else
-extern void InitialGainOperateWorkItemCallBack(struct net_device *dev);
-#endif
 
 #endif