diff --git a/core/efuse/rtw_efuse.c b/core/efuse/rtw_efuse.c
index b9a1770..4084377 100644
--- a/core/efuse/rtw_efuse.c
+++ b/core/efuse/rtw_efuse.c
@@ -2346,7 +2346,6 @@ u8 mac_hidden_wl_func_to_hal_wl_func(u8 func)
 	return wl_func;
 }
 
-#ifdef PLATFORM_LINUX
 #ifdef CONFIG_ADAPTOR_INFO_CACHING_FILE
 /* #include <rtw_eeprom.h> */
 
@@ -2608,5 +2607,3 @@ exit:
 	return ret;
 }
 #endif /* CONFIG_EFUSE_CONFIG_FILE */
-
-#endif /* PLATFORM_LINUX */
diff --git a/core/rtw_mp.c b/core/rtw_mp.c
index c60f48d..51cfa4e 100644
--- a/core/rtw_mp.c
+++ b/core/rtw_mp.c
@@ -162,7 +162,6 @@ static void _init_mp_priv_(struct mp_priv *pmp_priv)
 
 }
 
-#ifdef PLATFORM_LINUX
 static int init_mp_priv_by_os(struct mp_priv *pmp_priv)
 {
 	int i, res;
@@ -203,7 +202,6 @@ _exit_init_mp_priv:
 
 	return res;
 }
-#endif
 
 static void mp_init_xmit_attrib(struct mp_tx *pmptx, PADAPTER padapter)
 {
@@ -1757,11 +1755,9 @@ void SetPacketTx(PADAPTER padapter)
 	rtw_mfree(pmp_priv->TXradomBuffer, 4096);
 
 	/* 3 6. start thread */
-#ifdef PLATFORM_LINUX
 	pmp_priv->tx.PktTxThread = kthread_run(mp_xmit_packet_thread, pmp_priv, "RTW_MP_THREAD");
 	if (IS_ERR(pmp_priv->tx.PktTxThread))
 		RTW_INFO("Create PktTx Thread Fail !!!!!\n");
-#endif
 
 	Rtw_MPSetMacTxEDCA(padapter);
 exit:
@@ -1909,11 +1905,9 @@ u32 mp_query_psd(PADAPTER pAdapter, u8 *data)
 	u32 psd_data = 0;
 
 
-#ifdef PLATFORM_LINUX
 	if (!netif_running(pAdapter->pnetdev)) {
 		return 0;
 	}
-#endif
 
 	if (check_fwstate(&pAdapter->mlmepriv, WIFI_MP_STATE) == _FALSE) {
 		return 0;
diff --git a/core/rtw_mp_ioctl.c b/core/rtw_mp_ioctl.c
index c9f564d..2e4076f 100644
--- a/core/rtw_mp_ioctl.c
+++ b/core/rtw_mp_ioctl.c
@@ -2325,11 +2325,9 @@ NDIS_STATUS oid_rt_set_power_down_hdl(struct oid_par_priv *poid_par_priv)
 {
 	u8		bpwrup;
 	NDIS_STATUS	status = NDIS_STATUS_SUCCESS;
-#ifdef PLATFORM_LINUX
 #if defined(CONFIG_SDIO_HCI) || defined(CONFIG_GSPI_HCI)
 	PADAPTER	padapter = (PADAPTER)(poid_par_priv->adapter_context);
 #endif
-#endif
 
 
 	if (poid_par_priv->type_of_oid != SET_OID) {
@@ -2342,10 +2340,8 @@ NDIS_STATUS oid_rt_set_power_down_hdl(struct oid_par_priv *poid_par_priv)
 
 	bpwrup = *(u8 *)poid_par_priv->information_buf;
 	/* CALL  the power_down function */
-#ifdef PLATFORM_LINUX
 #if defined(CONFIG_RTL8712) /* Linux MP insmod unknown symbol */
 	dev_power_down(padapter, bpwrup);
-#endif
 #endif
 	_irqlevel_changed_(&oldirql, RAISE);
 
diff --git a/core/rtw_recv.c b/core/rtw_recv.c
index 246afbb..49b792d 100644
--- a/core/rtw_recv.c
+++ b/core/rtw_recv.c
@@ -2400,7 +2400,6 @@ exit:
 
 
 #if defined(CONFIG_SDIO_HCI) || defined(CONFIG_GSPI_HCI)
-#ifdef PLATFORM_LINUX
 static void recvframe_expand_pkt(
 	PADAPTER padapter,
 	union recv_frame *prframe)
@@ -2456,7 +2455,6 @@ static void recvframe_expand_pkt(
 #else
 #warning "recvframe_expand_pkt not implement, defrag may crash system"
 #endif
-#endif
 
 /* perform defrag */
 union recv_frame *recvframe_defrag(_adapter *adapter, _queue *defrag_q);
diff --git a/core/rtw_sreset.c b/core/rtw_sreset.c
index 6d241ca..434be7c 100644
--- a/core/rtw_sreset.c
+++ b/core/rtw_sreset.c
@@ -264,7 +264,7 @@ void sreset_stop_adapter(_adapter *padapter)
 	rtw_cancel_all_timer(padapter);
 
 	/* TODO: OS and HCI independent */
-#if defined(PLATFORM_LINUX) && defined(CONFIG_USB_HCI)
+#if defined(CONFIG_USB_HCI)
 	tasklet_kill(&pxmitpriv->xmit_tasklet);
 #endif
 
@@ -292,7 +292,7 @@ void sreset_start_adapter(_adapter *padapter)
 		sreset_restore_network_status(padapter);
 
 	/* TODO: OS and HCI independent */
-#if defined(PLATFORM_LINUX) && defined(CONFIG_USB_HCI)
+#if defined(CONFIG_USB_HCI)
 	tasklet_hi_schedule(&pxmitpriv->xmit_tasklet);
 #endif
 
diff --git a/core/rtw_xmit.c b/core/rtw_xmit.c
index b13db72..7fc1fa6 100644
--- a/core/rtw_xmit.c
+++ b/core/rtw_xmit.c
@@ -4966,9 +4966,7 @@ void rtw_sctx_init(struct submit_ctx *sctx, int timeout_ms)
 {
 	sctx->timeout_ms = timeout_ms;
 	sctx->submit_time = rtw_get_current_time();
-#ifdef PLATFORM_LINUX /* TODO: add condition wating interface for other os */
 	init_completion(&sctx->done);
-#endif
 	sctx->status = RTW_SCTX_SUBMITTED;
 }
 
@@ -4978,7 +4976,6 @@ int rtw_sctx_wait(struct submit_ctx *sctx, const char *msg)
 	unsigned long expire;
 	int status = 0;
 
-#ifdef PLATFORM_LINUX
 	expire = sctx->timeout_ms ? msecs_to_jiffies(sctx->timeout_ms) : MAX_SCHEDULE_TIMEOUT;
 	if (!wait_for_completion_timeout(&sctx->done, expire)) {
 		/* timeout, do something?? */
@@ -4986,7 +4983,6 @@ int rtw_sctx_wait(struct submit_ctx *sctx, const char *msg)
 		RTW_INFO("%s timeout: %s\n", __func__, msg);
 	} else
 		status = sctx->status;
-#endif
 
 	if (status == RTW_SCTX_DONE_SUCCESS)
 		ret = _SUCCESS;
@@ -5015,9 +5011,7 @@ void rtw_sctx_done_err(struct submit_ctx **sctx, int status)
 		if (rtw_sctx_chk_waring_status(status))
 			RTW_INFO("%s status:%d\n", __func__, status);
 		(*sctx)->status = status;
-#ifdef PLATFORM_LINUX
 		complete(&((*sctx)->done));
-#endif
 		*sctx = NULL;
 	}
 }
diff --git a/hal/btc/Mp_Precomp.h b/hal/btc/Mp_Precomp.h
index 1542565..566844e 100644
--- a/hal/btc/Mp_Precomp.h
+++ b/hal/btc/Mp_Precomp.h
@@ -25,9 +25,7 @@
 
 #define BT_TMP_BUF_SIZE	100
 
-#ifdef PLATFORM_LINUX
 #define rsprintf snprintf
-#endif
 
 #define DCMD_Printf			DBG_BT_INFO
 
diff --git a/hal/phydm/halhwimg.h b/hal/phydm/halhwimg.h
index 1b679e4..d3f5a12 100644
--- a/hal/phydm/halhwimg.h
+++ b/hal/phydm/halhwimg.h
@@ -1,80 +1 @@
-#pragma once
-#ifndef __INC_HW_IMG_H
-#define __INC_HW_IMG_H
 
-//
-// 2011/03/15 MH Add for different IC HW image file selection. code size consideration.
-//
-#if RT_PLATFORM == PLATFORM_LINUX
-
-	#if (DEV_BUS_TYPE == RT_PCI_INTERFACE)
-	// For 92C
-	#define		RTL8192CE_HWIMG_SUPPORT					1
-	#define		RTL8192CE_TEST_HWIMG_SUPPORT			0
-	#define		RTL8192CU_HWIMG_SUPPORT					0
-	#define		RTL8192CU_TEST_HWIMG_SUPPORT			0
-
-	// For 92D
-	#define		RTL8192DE_HWIMG_SUPPORT					1
-	#define		RTL8192DE_TEST_HWIMG_SUPPORT			0
-	#define		RTL8192DU_HWIMG_SUPPORT					0
-	#define		RTL8192DU_TEST_HWIMG_SUPPORT			0
-
-	// For 8723
-	#define		RTL8723E_HWIMG_SUPPORT					1
-	#define		RTL8723U_HWIMG_SUPPORT					0
-	#define		RTL8723S_HWIMG_SUPPORT					0
-
-	//For 88E
-	#define		RTL8188EE_HWIMG_SUPPORT					0
-	#define		RTL8188EU_HWIMG_SUPPORT					0
-	#define		RTL8188ES_HWIMG_SUPPORT					0
-	
-	#elif (DEV_BUS_TYPE == RT_USB_INTERFACE)
-	// For 92C
-	#define 	RTL8192CE_HWIMG_SUPPORT 				0
-	#define 	RTL8192CE_TEST_HWIMG_SUPPORT			0
-	#define 	RTL8192CU_HWIMG_SUPPORT 				1
-	#define 	RTL8192CU_TEST_HWIMG_SUPPORT			0
-
-	//For 92D
-	#define 	RTL8192DE_HWIMG_SUPPORT 				0
-	#define 	RTL8192DE_TEST_HWIMG_SUPPORT			0
-	#define 	RTL8192DU_HWIMG_SUPPORT 				1
-	#define 	RTL8192DU_TEST_HWIMG_SUPPORT			0
-
-	// For 8723
-	#define 	RTL8723E_HWIMG_SUPPORT					0
-	#define 	RTL8723U_HWIMG_SUPPORT					1
-	#define 	RTL8723S_HWIMG_SUPPORT					0
-
-	//For 88E
-	#define		RTL8188EE_HWIMG_SUPPORT					0
-	#define		RTL8188EU_HWIMG_SUPPORT					0
-	#define		RTL8188ES_HWIMG_SUPPORT					0
-	
-	#elif (DEV_BUS_TYPE == RT_SDIO_INTERFACE)
-	// For 92C
-	#define 	RTL8192CE_HWIMG_SUPPORT 				0
-	#define 	RTL8192CE_TEST_HWIMG_SUPPORT			0
-	#define 	RTL8192CU_HWIMG_SUPPORT 				1
-	#define 	RTL8192CU_TEST_HWIMG_SUPPORT			0
-
-	//For 92D
-	#define 	RTL8192DE_HWIMG_SUPPORT 				0
-	#define 	RTL8192DE_TEST_HWIMG_SUPPORT			0
-	#define 	RTL8192DU_HWIMG_SUPPORT 				1
-	#define 	RTL8192DU_TEST_HWIMG_SUPPORT			0
-
-	// For 8723
-	#define 	RTL8723E_HWIMG_SUPPORT					0
-	#define 	RTL8723U_HWIMG_SUPPORT					0
-	#define 	RTL8723S_HWIMG_SUPPORT					1
-
-	//For 88E
-	#define		RTL8188EE_HWIMG_SUPPORT					0
-	#define		RTL8188EU_HWIMG_SUPPORT					0
-	#define		RTL8188ES_HWIMG_SUPPORT					0
-	#endif
-
-#endif //__INC_HW_IMG_H
diff --git a/hal/phydm/phydm.c b/hal/phydm/phydm.c
index 7233899..621bd23 100644
--- a/hal/phydm/phydm.c
+++ b/hal/phydm/phydm.c
@@ -2334,11 +2334,7 @@ GetPSDData(
 	//Read PSD report, Reg8B4[15:0]
 	psd_report = ODM_GetBBReg(pDM_Odm,0x8B4, bMaskDWord) & 0x0000FFFF;
 	
-#if 1//(DEV_BUS_TYPE == RT_PCI_INTERFACE) && ( (RT_PLATFORM == PLATFORM_LINUX) || (RT_PLATFORM == PLATFORM_MACOSX))
 	psd_report = (u4Byte) (odm_ConvertTo_dB(psd_report))+(u4Byte)(initial_gain_psd-0x1c);
-#else
-	psd_report = (int) (20*log10((double)psd_report))+(int)(initial_gain_psd-0x1c);
-#endif
 
 	return psd_report;
 	
diff --git a/hal/phydm/phydm.h b/hal/phydm/phydm.h
index 09d7619..a8d0d50 100644
--- a/hal/phydm/phydm.h
+++ b/hal/phydm/phydm.h
@@ -492,10 +492,6 @@ typedef enum _BASEBAND_CONFIG_PHY_REG_PG_VALUE_TYPE {
 /*2011/09/22 MH Copy from SD4 defined structure. We use to support PHY DM integration.*/
 
 #if(DM_ODM_SUPPORT_TYPE & ODM_WIN)
-#if (RT_PLATFORM != PLATFORM_LINUX)
-typedef 
-#endif
-	
 struct DM_Out_Source_Dynamic_Mechanism_Structure
 #else/*for AP,ADSL,CE Team*/
 typedef  struct DM_Out_Source_Dynamic_Mechanism_Structure
@@ -927,11 +923,7 @@ typedef  struct DM_Out_Source_Dynamic_Mechanism_Structure
 
 #if(DM_ODM_SUPPORT_TYPE & ODM_WIN)
 	
-#if (RT_PLATFORM != PLATFORM_LINUX)
-} DM_ODM_T, *PDM_ODM_T;		/*DM_Dynamic_Mechanism_Structure*/
-#else
 };
-#endif	
 
 #else	/*for AP,ADSL,CE Team*/
 } DM_ODM_T, *PDM_ODM_T;		/*DM_Dynamic_Mechanism_Structure*/
diff --git a/hal/rtl8723d/sdio/rtl8723ds_recv.c b/hal/rtl8723d/sdio/rtl8723ds_recv.c
index 1c5e353..2ff8f5a 100644
--- a/hal/rtl8723d/sdio/rtl8723ds_recv.c
+++ b/hal/rtl8723d/sdio/rtl8723ds_recv.c
@@ -71,9 +71,7 @@ static void rtl8723ds_recv_tasklet(void *priv)
 
 				/* The case of can't allocate recvframe should be temporary, */
 				/* schedule again and hope recvframe is available next time. */
-#ifdef PLATFORM_LINUX
 				tasklet_schedule(&precvpriv->recv_tasklet);
-#endif
 				return;
 			}
 
@@ -207,9 +205,7 @@ static void rtl8723ds_recv_tasklet(void *priv)
 
 				/* The case of can't allocate recvframe should be temporary, */
 				/* schedule again and hope recvframe is available next time. */
-#ifdef PLATFORM_LINUX
 				tasklet_schedule(&precvpriv->recv_tasklet);
-#endif
 				return;
 			}
 
@@ -283,9 +279,7 @@ static void rtl8723ds_recv_tasklet(void *priv)
 					/* The case of can't allocate skb is serious and may never be recovered, */
 					/* once bDriverStopped is enable, this task should be stopped. */
 					if (!rtw_is_drv_stopped(padapter)) {
-#ifdef PLATFORM_LINUX
 						tasklet_schedule(&precvpriv->recv_tasklet);
-#endif
 					}
 
 					return;
@@ -426,11 +420,9 @@ s32 rtl8723ds_init_recv_priv(PADAPTER padapter)
 		goto initbuferror;
 
 	/* 3 2. init tasklet */
-#ifdef PLATFORM_LINUX
 	tasklet_init(&precvpriv->recv_tasklet,
 		     (void(*)(unsigned long))rtl8723ds_recv_tasklet,
 		     (unsigned long)padapter);
-#endif
 
 	goto exit;
 
@@ -474,9 +466,7 @@ void rtl8723ds_free_recv_priv(PADAPTER padapter)
 	precvpriv = &padapter->recvpriv;
 
 	/* 3 1. kill tasklet */
-#ifdef PLATFORM_LINUX
 	tasklet_kill(&precvpriv->recv_tasklet);
-#endif
 
 	/* 3 2. free all recv buffers */
 	precvbuf = (struct recv_buf *)precvpriv->precv_buf;
diff --git a/hal/rtl8723d/sdio/sdio_ops.c b/hal/rtl8723d/sdio/sdio_ops.c
index 8a40050..ad4b1bc 100644
--- a/hal/rtl8723d/sdio/sdio_ops.c
+++ b/hal/rtl8723d/sdio/sdio_ops.c
@@ -1452,9 +1452,7 @@ static void sd_rxhandler(PADAPTER padapter, struct recv_buf *precvbuf)
 	rtw_enqueue_recvbuf(precvbuf, ppending_queue);
 
 	/* 3 2. schedule tasklet */
-#ifdef PLATFORM_LINUX
 	tasklet_schedule(&precvpriv->recv_tasklet);
-#endif
 }
 
 void sd_int_dpc(PADAPTER padapter)
diff --git a/include/autoconf.h b/include/autoconf.h
index 4f98e83..9dd1a3e 100644
--- a/include/autoconf.h
+++ b/include/autoconf.h
@@ -30,9 +30,6 @@
 #endif
 #define CONFIG_SDIO_HCI
 
-#define PLATFORM_LINUX
-
-
 /*
  * Wi-Fi Functions Config
  */
diff --git a/include/basic_types.h b/include/basic_types.h
index f13207d..a4a614f 100644
--- a/include/basic_types.h
+++ b/include/basic_types.h
@@ -36,43 +36,41 @@
 	#define _FALSE	FALSE
 #endif
 
-#ifdef PLATFORM_LINUX
-	#include <linux/version.h>
-	#include <linux/types.h>
-	#include <linux/module.h>
-	#include <linux/kernel.h>
-	#include <linux/init.h>
-	#include <linux/utsname.h>
-	#define IN
-	#define OUT
-	#define VOID void
-	#define NDIS_OID uint
-	#define NDIS_STATUS uint
+#include <linux/version.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/utsname.h>
+#define IN
+#define OUT
+#define VOID void
+#define NDIS_OID uint
+#define NDIS_STATUS uint
 
-	typedef	signed int sint;
-
-	#ifndef	PVOID
-		typedef void *PVOID;
-		/* #define PVOID	(void *) */
-	#endif
-
-	#define UCHAR u8
-	#define USHORT u16
-	#define UINT u32
-	#define ULONG u32
-
-	#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
-		typedef _Bool bool;
-	#endif
-
-	typedef void (*proc_t)(void *);
-
-	typedef	__kernel_size_t	SIZE_T;
-	typedef	__kernel_ssize_t	SSIZE_T;
-	#define FIELD_OFFSET(s, field)	((SSIZE_T)&((s *)(0))->field)
+typedef	signed int sint;
 
+#ifndef	PVOID
+	typedef void *PVOID;
+	/* #define PVOID	(void *) */
 #endif
 
+#define UCHAR u8
+#define USHORT u16
+#define UINT u32
+#define ULONG u32
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
+	typedef _Bool bool;
+#endif
+
+typedef void (*proc_t)(void *);
+
+typedef	__kernel_size_t	SIZE_T;
+typedef	__kernel_ssize_t	SSIZE_T;
+#define FIELD_OFFSET(s, field)	((SSIZE_T)&((s *)(0))->field)
+
+
 
 #define MEM_ALIGNMENT_OFFSET	(sizeof (SIZE_T))
 #define MEM_ALIGNMENT_PADDING	(sizeof(SIZE_T) - 1)
diff --git a/include/byteorder/generic.h b/include/byteorder/generic.h
index 0bdc44c..ea448e0 100644
--- a/include/byteorder/generic.h
+++ b/include/byteorder/generic.h
@@ -97,50 +97,46 @@
  *
  */
 
-
-#if defined(PLATFORM_LINUX)
-	/*
-	* inside the kernel, we can use nicknames;
-	* outside of it, we must avoid POSIX namespace pollution...
-	*/
-	#define cpu_to_le64 __cpu_to_le64
-	#define le64_to_cpu __le64_to_cpu
-	#define cpu_to_le32 __cpu_to_le32
-	#define le32_to_cpu __le32_to_cpu
-	#define cpu_to_le16 __cpu_to_le16
-	#define le16_to_cpu __le16_to_cpu
-	#define cpu_to_be64 __cpu_to_be64
-	#define be64_to_cpu __be64_to_cpu
-	#define cpu_to_be32 __cpu_to_be32
-	#define be32_to_cpu __be32_to_cpu
-	#define cpu_to_be16 __cpu_to_be16
-	#define be16_to_cpu __be16_to_cpu
-	#define cpu_to_le64p __cpu_to_le64p
-	#define le64_to_cpup __le64_to_cpup
-	#define cpu_to_le32p __cpu_to_le32p
-	#define le32_to_cpup __le32_to_cpup
-	#define cpu_to_le16p __cpu_to_le16p
-	#define le16_to_cpup __le16_to_cpup
-	#define cpu_to_be64p __cpu_to_be64p
-	#define be64_to_cpup __be64_to_cpup
-	#define cpu_to_be32p __cpu_to_be32p
-	#define be32_to_cpup __be32_to_cpup
-	#define cpu_to_be16p __cpu_to_be16p
-	#define be16_to_cpup __be16_to_cpup
-	#define cpu_to_le64s __cpu_to_le64s
-	#define le64_to_cpus __le64_to_cpus
-	#define cpu_to_le32s __cpu_to_le32s
-	#define le32_to_cpus __le32_to_cpus
-	#define cpu_to_le16s __cpu_to_le16s
-	#define le16_to_cpus __le16_to_cpus
-	#define cpu_to_be64s __cpu_to_be64s
-	#define be64_to_cpus __be64_to_cpus
-	#define cpu_to_be32s __cpu_to_be32s
-	#define be32_to_cpus __be32_to_cpus
-	#define cpu_to_be16s __cpu_to_be16s
-	#define be16_to_cpus __be16_to_cpus
-#endif
-
+/*
+* inside the kernel, we can use nicknames;
+* outside of it, we must avoid POSIX namespace pollution...
+*/
+#define cpu_to_le64 __cpu_to_le64
+#define le64_to_cpu __le64_to_cpu
+#define cpu_to_le32 __cpu_to_le32
+#define le32_to_cpu __le32_to_cpu
+#define cpu_to_le16 __cpu_to_le16
+#define le16_to_cpu __le16_to_cpu
+#define cpu_to_be64 __cpu_to_be64
+#define be64_to_cpu __be64_to_cpu
+#define cpu_to_be32 __cpu_to_be32
+#define be32_to_cpu __be32_to_cpu
+#define cpu_to_be16 __cpu_to_be16
+#define be16_to_cpu __be16_to_cpu
+#define cpu_to_le64p __cpu_to_le64p
+#define le64_to_cpup __le64_to_cpup
+#define cpu_to_le32p __cpu_to_le32p
+#define le32_to_cpup __le32_to_cpup
+#define cpu_to_le16p __cpu_to_le16p
+#define le16_to_cpup __le16_to_cpup
+#define cpu_to_be64p __cpu_to_be64p
+#define be64_to_cpup __be64_to_cpup
+#define cpu_to_be32p __cpu_to_be32p
+#define be32_to_cpup __be32_to_cpup
+#define cpu_to_be16p __cpu_to_be16p
+#define be16_to_cpup __be16_to_cpup
+#define cpu_to_le64s __cpu_to_le64s
+#define le64_to_cpus __le64_to_cpus
+#define cpu_to_le32s __cpu_to_le32s
+#define le32_to_cpus __le32_to_cpus
+#define cpu_to_le16s __cpu_to_le16s
+#define le16_to_cpus __le16_to_cpus
+#define cpu_to_be64s __cpu_to_be64s
+#define be64_to_cpus __be64_to_cpus
+#define cpu_to_be32s __cpu_to_be32s
+#define be32_to_cpus __be32_to_cpus
+#define cpu_to_be16s __cpu_to_be16s
+#define be16_to_cpus __be16_to_cpus
 
 /*
  * Handle ntohl and suches. These have various compatibility
@@ -165,15 +161,10 @@
  * Do the prototypes. Somebody might want to take the
  * address or some such sick thing..
  */
-#if defined(PLATFORM_LINUX) || (defined(__GLIBC__) && __GLIBC__ >= 2)
-	extern __u32			ntohl(__u32);
-	extern __u32			htonl(__u32);
-#else /* defined(PLATFORM_LINUX) || (defined (__GLIBC__) && __GLIBC__ >= 2) */
-	extern unsigned long int	ntohl(unsigned long int);
-	extern unsigned long int	htonl(unsigned long int);
-#endif
-	extern unsigned short int	ntohs(unsigned short int);
-	extern unsigned short int	htons(unsigned short int);
+extern __u32			ntohl(__u32);
+extern __u32			htonl(__u32);
+extern unsigned short int	ntohs(unsigned short int);
+extern unsigned short int	htons(unsigned short int);
 
 #if defined(__GNUC__) && (__GNUC__ >= 2) && defined(__OPTIMIZE__) || defined(PLATFORM_MPIXEL)
 
@@ -182,13 +173,8 @@
 	#define ___ntohl(x) __be32_to_cpu(x)
 	#define ___ntohs(x) __be16_to_cpu(x)
 
-	#if defined(PLATFORM_LINUX) || (defined(__GLIBC__) && __GLIBC__ >= 2)
-		#define htonl(x) ___htonl(x)
-		#define ntohl(x) ___ntohl(x)
-	#else
-		#define htonl(x) ((unsigned long)___htonl(x))
-		#define ntohl(x) ((unsigned long)___ntohl(x))
-	#endif
+	#define htonl(x) ___htonl(x)
+	#define ntohl(x) ___ntohl(x)
 	#define htons(x) ___htons(x)
 	#define ntohs(x) ___ntohs(x)
 
diff --git a/include/byteorder/swab.h b/include/byteorder/swab.h
index 354e347..13488c4 100644
--- a/include/byteorder/swab.h
+++ b/include/byteorder/swab.h
@@ -118,16 +118,14 @@ __inline static const __u32 __fswab32(__u32 x)
 	return __arch__swab32(x);
 }
 
-#if defined(PLATFORM_LINUX)
-	#define swab16 __swab16
-	#define swab32 __swab32
-	#define swab64 __swab64
-	#define swab16p __swab16p
-	#define swab32p __swab32p
-	#define swab64p __swab64p
-	#define swab16s __swab16s
-	#define swab32s __swab32s
-	#define swab64s __swab64s
-#endif
+#define swab16 __swab16
+#define swab32 __swab32
+#define swab64 __swab64
+#define swab16p __swab16p
+#define swab32p __swab32p
+#define swab64p __swab64p
+#define swab16s __swab16s
+#define swab32s __swab32s
+#define swab64s __swab64s
 
 #endif /* _LINUX_BYTEORDER_SWAB_H */
diff --git a/include/byteorder/swabb.h b/include/byteorder/swabb.h
index ce33424..41a6ebf 100644
--- a/include/byteorder/swabb.h
+++ b/include/byteorder/swabb.h
@@ -144,13 +144,11 @@ __inline static__ void __swahb32s(__u32 *addr)
 	*/
 #endif /* __BYTEORDER_HAS_U64__ */
 
-#if defined(PLATFORM_LINUX)
-	#define swahw32 __swahw32
-	#define swahb32 __swahb32
-	#define swahw32p __swahw32p
-	#define swahb32p __swahb32p
-	#define swahw32s __swahw32s
-	#define swahb32s __swahb32s
-#endif
+#define swahw32 __swahw32
+#define swahb32 __swahb32
+#define swahw32p __swahw32p
+#define swahb32p __swahb32p
+#define swahw32s __swahw32s
+#define swahb32s __swahb32s
 
 #endif /* _LINUX_BYTEORDER_SWABB_H */
diff --git a/include/custom_gpio.h b/include/custom_gpio.h
index 5cada97..58f28e0 100644
--- a/include/custom_gpio.h
+++ b/include/custom_gpio.h
@@ -3,10 +3,7 @@
 
 #include <drv_conf.h>
 #include <osdep_service.h>
-
-#ifdef PLATFORM_LINUX
-	#include <drv_types_linux.h>
-#endif
+#include <drv_types_linux.h>
 
 typedef enum cust_gpio_modes {
 	WLAN_PWDN_ON,
diff --git a/include/drv_types.h b/include/drv_types.h
index 3467b91..1de06fc 100644
--- a/include/drv_types.h
+++ b/include/drv_types.h
@@ -39,9 +39,7 @@
 	#include <net/arp.h>
 #endif
 
-#ifdef PLATFORM_LINUX
 	#include <drv_types_linux.h>
-#endif
 
 #ifndef is_compat_task
 #define is_compat_task() 0
@@ -968,10 +966,8 @@ struct dvobj_priv {
 	u8 *usb_vendor_req_buf;
 #endif
 
-#ifdef PLATFORM_LINUX
 	struct usb_interface *pusbintf;
 	struct usb_device *pusbdev;
-#endif/* PLATFORM_LINUX */
 
 #endif/* CONFIG_USB_HCI */
 
@@ -979,7 +975,6 @@ struct dvobj_priv {
 
 #ifdef CONFIG_PCI_HCI
 
-#ifdef PLATFORM_LINUX
 	struct pci_dev *ppcidev;
 
 	/* PCI MEM map */
@@ -1020,7 +1015,6 @@ struct dvobj_priv {
 	u8	b_support_aspm; /* If it supports ASPM, Offset[560h] = 0x40, otherwise Offset[560h] = 0x00. */
 	u8	b_support_backdoor;
 	u8	bdma64;
-#endif/* PLATFORM_LINUX */
 
 #endif/* CONFIG_PCI_HCI */
 
@@ -1073,12 +1067,9 @@ static inline void dev_clr_drv_stopped(struct dvobj_priv *dvobj)
 #define dev_is_surprise_removed(dvobj)	(ATOMIC_READ(&dvobj->bSurpriseRemoved) == _TRUE)
 #define dev_is_drv_stopped(dvobj)		(ATOMIC_READ(&dvobj->bDriverStopped) == _TRUE)
 
-#ifdef PLATFORM_LINUX
 static struct device *dvobj_to_dev(struct dvobj_priv *dvobj)
 {
 	/* todo: get interface type from dvobj and the return the dev accordingly */
-#ifdef RTW_DVOBJ_CHIP_HW_TYPE
-#endif
 
 #ifdef CONFIG_USB_HCI
 	return &dvobj->pusbintf->dev;
@@ -1093,7 +1084,6 @@ static struct device *dvobj_to_dev(struct dvobj_priv *dvobj)
 	return &dvobj->ppcidev->dev;
 #endif
 }
-#endif
 
 _adapter *dvobj_get_port0_adapter(struct dvobj_priv *dvobj);
 _adapter *dvobj_get_unregisterd_adapter(struct dvobj_priv *dvobj);
@@ -1261,11 +1251,6 @@ struct _ADAPTER {
 	_thread_hdl_ recvThread;
 
 	u8 registered;
-#ifndef PLATFORM_LINUX
-	NDIS_STATUS(*dvobj_init)(struct dvobj_priv *dvobj);
-	void (*dvobj_deinit)(struct dvobj_priv *dvobj);
-#endif
-
 	u32(*intf_init)(struct dvobj_priv *dvobj);
 	void (*intf_deinit)(struct dvobj_priv *dvobj);
 	int (*intf_alloc_irq)(struct dvobj_priv *dvobj);
@@ -1275,7 +1260,6 @@ struct _ADAPTER {
 	void (*intf_start)(_adapter *adapter);
 	void (*intf_stop)(_adapter *adapter);
 
-#ifdef PLATFORM_LINUX
 	_nic_hdl pnetdev;
 	char old_ifname[IFNAMSIZ];
 
@@ -1308,8 +1292,6 @@ struct _ADAPTER {
 
 #endif /* CONFIG_IOCTL_CFG80211 */
 
-#endif /* PLATFORM_LINUX */
-
 	u8 mac_addr[ETH_ALEN];
 	int net_closed;
 
diff --git a/include/drv_types_gspi.h b/include/drv_types_gspi.h
index f0efc8c..20c8ae1 100644
--- a/include/drv_types_gspi.h
+++ b/include/drv_types_gspi.h
@@ -21,7 +21,6 @@
 #define __DRV_TYPES_GSPI_H__
 
 /* SPI Header Files */
-#ifdef PLATFORM_LINUX
 	#include <linux/platform_device.h>
 	#include <linux/spi/spi.h>
 	#include <linux/gpio.h>
@@ -33,7 +32,6 @@
 	#include <mach/hardware.h>
 	#include <mach/irqs.h>
 	#include <custom_gpio.h>
-#endif
 
 
 typedef struct gspi_data {
@@ -43,12 +41,10 @@ typedef struct gspi_data {
 	u8  rx_block_mode;
 	u32 block_transfer_len;
 
-#ifdef PLATFORM_LINUX
 	struct spi_device *func;
 
 	struct workqueue_struct *priv_wq;
 	struct delayed_work irq_work;
-#endif
 } GSPI_DATA, *PGSPI_DATA;
 
 #endif /*  #ifndef __DRV_TYPES_GSPI_H__ */
diff --git a/include/drv_types_pci.h b/include/drv_types_pci.h
index c03657f..8d1e14d 100644
--- a/include/drv_types_pci.h
+++ b/include/drv_types_pci.h
@@ -21,9 +21,7 @@
 #define __DRV_TYPES_PCI_H__
 
 
-#ifdef PLATFORM_LINUX
-	#include <linux/pci.h>
-#endif
+#include <linux/pci.h>
 
 
 #define	INTEL_VENDOR_ID				0x8086
diff --git a/include/drv_types_sdio.h b/include/drv_types_sdio.h
index 1595701..94fc70e 100644
--- a/include/drv_types_sdio.h
+++ b/include/drv_types_sdio.h
@@ -21,7 +21,6 @@
 #define __DRV_TYPES_SDIO_H__
 
 /* SDIO Header Files */
-#ifdef PLATFORM_LINUX
 	#include <linux/mmc/sdio_func.h>
 	#include <linux/mmc/sdio_ids.h>
 	#include <linux/mmc/host.h>
@@ -31,7 +30,6 @@
 		#include <linux/gpio.h>
 		#include <custom_gpio.h>
 	#endif /* CONFIG_PLATFORM_SPRD */
-#endif
 
 typedef struct sdio_data {
 	u8  func_number;
@@ -40,12 +38,9 @@ typedef struct sdio_data {
 	u8  rx_block_mode;
 	u32 block_transfer_len;
 
-#ifdef PLATFORM_LINUX
 	struct sdio_func	*func;
 	_thread_hdl_ sys_sdio_irq_thd;
 	unsigned int clock;
-#endif
-
 } SDIO_DATA, *PSDIO_DATA;
 
 #define dvobj_to_sdio_func(d)	((d)->intf_data.func)
diff --git a/include/ieee80211.h b/include/ieee80211.h
index d75066e..48963f5 100644
--- a/include/ieee80211.h
+++ b/include/ieee80211.h
@@ -333,8 +333,6 @@ struct ieee_ibss_seq {
 	_list	list;
 };
 
-#if defined(PLATFORM_LINUX) || defined(CONFIG_RTL8711FW)
-
 struct rtw_ieee80211_hdr {
 	u16 frame_ctl;
 	u16 duration_id;
@@ -384,8 +382,6 @@ struct eapol {
 	u16 length;
 } __attribute__((packed));
 
-#endif
-
 enum eap_type {
 	EAP_PACKET = 0,
 	EAPOL_START,
@@ -494,8 +490,6 @@ enum eap_type {
 
 #define P80211_OUI_LEN 3
 
-#if defined(PLATFORM_LINUX) || defined(CONFIG_RTL8711FW)
-
 struct ieee80211_snap_hdr {
 
 	u8    dsap;   /* always 0xAA */
@@ -505,8 +499,6 @@ struct ieee80211_snap_hdr {
 
 } __attribute__((packed));
 
-#endif
-
 #define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
 
 #define WLAN_FC_GET_TYPE(fc) ((fc) & RTW_IEEE80211_FCTL_FTYPE)
@@ -1033,8 +1025,6 @@ struct ieee80211_softmac_stats {
 	#define BIP_AAD_SIZE  20
 #endif /* CONFIG_IEEE80211W */
 
-#if defined(PLATFORM_LINUX) || defined(CONFIG_RTL8711FW)
-
 struct ieee80211_security {
 	u16 active_key:2,
 	    enabled:1,
@@ -1047,8 +1037,6 @@ struct ieee80211_security {
 	u16 flags;
 } __attribute__((packed));
 
-#endif
-
 /*
 
  802.11 data frame from AP
@@ -1089,8 +1077,6 @@ struct ieee80211_header_data {
 #define MFIE_TYPE_RATES_EX   50
 #define MFIE_TYPE_GENERIC    221
 
-#if defined(PLATFORM_LINUX) || defined(CONFIG_RTL8711FW)
-
 struct ieee80211_info_element_hdr {
 	u8 id;
 	u8 len;
@@ -1101,7 +1087,6 @@ struct ieee80211_info_element {
 	u8 len;
 	u8 data[0];
 } __attribute__((packed));
-#endif
 
 /*
  * These are the data types that can make up management packets
@@ -1123,10 +1108,6 @@ struct ieee80211_info_element {
 #define IEEE80211_DEFAULT_TX_ESSID "Penguin"
 #define IEEE80211_DEFAULT_BASIC_RATE 10
 
-
-#if defined(PLATFORM_LINUX) || defined(CONFIG_RTL8711FW)
-
-
 struct ieee80211_authentication {
 	struct ieee80211_header_data header;
 	u16 algorithm;
@@ -1135,7 +1116,6 @@ struct ieee80211_authentication {
 	/* struct ieee80211_info_element_hdr info_element; */
 } __attribute__((packed));
 
-
 struct ieee80211_probe_response {
 	struct ieee80211_header_data header;
 	u32 time_stamp[2];
@@ -1164,7 +1144,6 @@ struct ieee80211_assoc_response_frame {
 	u16 aid;
 	/*	struct ieee80211_info_element info_element;  supported rates  */
 } __attribute__((packed));
-#endif
 
 struct ieee80211_txb {
 	u8 nr_frags;
diff --git a/include/ieee80211_ext.h b/include/ieee80211_ext.h
index a680802..8d0280c 100644
--- a/include/ieee80211_ext.h
+++ b/include/ieee80211_ext.h
@@ -48,7 +48,6 @@
 #define PMKID_LEN 16
 
 
-#ifdef PLATFORM_LINUX
 struct wpa_ie_hdr {
 	u8 elem_id;
 	u8 len;
@@ -103,8 +102,6 @@ struct wme_parameter_element {
 
 } __attribute__((packed));
 
-#endif
-
 #define WPA_PUT_LE16(a, val)			\
 	do {					\
 		(a)[1] = ((u16) (val)) >> 8;	\
@@ -179,8 +176,6 @@ enum ieee80211_back_parties {
 	WLAN_BACK_TIMER = 2,
 };
 
-#ifdef PLATFORM_LINUX
-
 struct ieee80211_mgmt {
 	u16 frame_control;
 	u16 duration;
@@ -307,8 +302,6 @@ struct ieee80211_mgmt {
 	} __attribute__((packed)) u;
 } __attribute__((packed));
 
-#endif
-
 /* mgmt header + 1 byte category code */
 #define IEEE80211_MIN_ACTION_SIZE FIELD_OFFSET(struct ieee80211_mgmt, u.action.u)
 
diff --git a/include/ip.h b/include/ip.h
index c78034d..5d7aade 100644
--- a/include/ip.h
+++ b/include/ip.h
@@ -90,8 +90,6 @@
 #define	IPOPT_TS_TSANDADDR	1		/* timestamps and addresses */
 #define	IPOPT_TS_PRESPEC	3		/* specified modules only */
 
-#ifdef PLATFORM_LINUX
-
 struct ip_options {
 	__u32		faddr;				/* Saved first hop address */
 	unsigned char	optlen;
@@ -113,7 +111,6 @@ struct ip_options {
 };
 
 #define optlength(opt) (sizeof(struct ip_options) + opt->optlen)
-#endif
 
 struct iphdr {
 #if defined(__LITTLE_ENDIAN_BITFIELD)
diff --git a/include/osdep_intf.h b/include/osdep_intf.h
index 54ba03d..9e9a701 100644
--- a/include/osdep_intf.h
+++ b/include/osdep_intf.h
@@ -48,7 +48,6 @@ struct intf_priv {
 	_mutex ioctl_mutex;
 
 
-#ifdef PLATFORM_LINUX
 #ifdef CONFIG_USB_HCI
 	/* when in USB, IO is through interrupt in/out endpoints */
 	struct usb_device	*udev;
@@ -60,7 +59,6 @@ struct intf_priv {
 	u8 bio_irp_timeout;
 	u8 bio_timer_cancel;
 #endif
-#endif
 };
 
 
@@ -86,7 +84,6 @@ void rtw_cancel_all_timer(_adapter *padapter);
 
 uint loadparam(_adapter *adapter);
 
-#ifdef PLATFORM_LINUX
 int rtw_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
 
 int rtw_init_netdev_name(struct net_device *pnetdev, const char *ifname);
@@ -113,8 +110,6 @@ void rtw_ndev_notifier_unregister(void);
 	#include "../os_dep/linux/ioctl_cfg80211.h"
 #endif /* CONFIG_IOCTL_CFG80211 */
 
-#endif /* PLATFORM_LINUX */
-
 void rtw_ips_dev_unload(_adapter *padapter);
 
 #ifdef CONFIG_IPS
diff --git a/include/osdep_service.h b/include/osdep_service.h
index b5bc245..5986475 100644
--- a/include/osdep_service.h
+++ b/include/osdep_service.h
@@ -32,10 +32,7 @@
 #undef _FALSE
 #define _FALSE		0
 
-
-#ifdef PLATFORM_LINUX
-	#include <osdep_service_linux.h>
-#endif
+#include <osdep_service_linux.h>
 
 #define RTW_TIMER_HDL_NAME(name) rtw_##name##_timer_hdl
 #define RTW_DECLARE_TIMER_HDL(name) void RTW_TIMER_HDL_NAME(name)(RTW_TIMER_HDL_ARGS)
@@ -328,49 +325,34 @@ extern void rtw_init_timer(_timer *ptimer, void *padapter, void *pfunc);
 
 __inline static unsigned char _cancel_timer_ex(_timer *ptimer)
 {
-#ifdef PLATFORM_LINUX
 	return del_timer_sync(ptimer);
-#endif
 }
 
 static __inline void thread_enter(char *name)
 {
-#ifdef PLATFORM_LINUX
 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 8, 0))
 	daemonize("%s", name);
 #endif
 	allow_signal(SIGTERM);
-#endif
 }
 
 __inline static void flush_signals_thread(void)
 {
-#ifdef PLATFORM_LINUX
 	if (signal_pending(current))
 		flush_signals(current);
-#endif
 }
 
 __inline static _OS_STATUS res_to_status(sint res)
 {
-
-#if defined(PLATFORM_LINUX) || defined (PLATFORM_MPIXEL)
 	return res;
-#endif
 }
 
 __inline static void rtw_dump_stack(void)
 {
-#ifdef PLATFORM_LINUX
 	dump_stack();
-#endif
 }
 
-#ifdef PLATFORM_LINUX
 #define rtw_warn_on(condition) WARN_ON(condition)
-#else
-#define rtw_warn_on(condition) do {} while (0)
-#endif
 
 __inline static int rtw_bug_check(void *parg1, void *parg2, void *parg3, void *parg4)
 {
@@ -630,10 +612,6 @@ char alpha_to_upper(char c);
 /*
  * Write formatted output to sized buffer
  */
-#ifdef PLATFORM_LINUX
 #define rtw_sprintf(buf, size, format, arg...)	snprintf(buf, size, format, ##arg)
-#else /* !PLATFORM_LINUX */
-#error "NOT DEFINE \"rtw_sprintf\"!!"
-#endif /* !PLATFORM_LINUX */
 
 #endif
diff --git a/include/recv_osdep.h b/include/recv_osdep.h
index 6cb9184..ede8340 100644
--- a/include/recv_osdep.h
+++ b/include/recv_osdep.h
@@ -57,12 +57,10 @@ void rtw_os_read_port(_adapter *padapter, struct recv_buf *precvbuf);
 
 void rtw_init_recv_timer(struct recv_reorder_ctrl *preorder_ctrl);
 
-#ifdef PLATFORM_LINUX
 #ifdef CONFIG_RTW_NAPI
 #include <linux/netdevice.h>	/* struct napi_struct */
 
 int rtw_recv_napi_poll(struct napi_struct *, int budget);
 #endif /* CONFIG_RTW_NAPI */
-#endif /* PLATFORM_LINUX */
 
 #endif /*  */
diff --git a/include/rtw_debug.h b/include/rtw_debug.h
index 83b2cdd..52eed62 100644
--- a/include/rtw_debug.h
+++ b/include/rtw_debug.h
@@ -63,10 +63,8 @@ enum {
 #undef _dbgdump
 #undef _seqdump
 
-#if defined PLATFORM_LINUX
-	#define _dbgdump printk
-	#define _seqdump seq_printf
-#endif
+#define _dbgdump printk
+#define _seqdump seq_printf
 
 #ifdef CONFIG_RTW_DEBUG
 
diff --git a/include/rtw_eeprom.h b/include/rtw_eeprom.h
index 9d9103f..bb4d12d 100644
--- a/include/rtw_eeprom.h
+++ b/include/rtw_eeprom.h
@@ -110,12 +110,10 @@ extern void eeprom_read_sz(_adapter *padapter, u16 reg, u8 *data, u32 sz);
 
 extern void read_eeprom_content_by_attrib(_adapter	*padapter);
 
-#ifdef PLATFORM_LINUX
 #ifdef CONFIG_ADAPTOR_INFO_CACHING_FILE
 extern int isAdaptorInfoFileValid(void);
 extern int storeAdaptorInfoFile(char *path, u8 *efuse_data);
 extern int retriveAdaptorInfoFile(char *path, u8 *efuse_data);
 #endif /* CONFIG_ADAPTOR_INFO_CACHING_FILE */
-#endif /* PLATFORM_LINUX */
 
 #endif /* __RTL871X_EEPROM_H__ */
diff --git a/include/rtw_efuse.h b/include/rtw_efuse.h
index 09025f2..31d783d 100644
--- a/include/rtw_efuse.h
+++ b/include/rtw_efuse.h
@@ -233,12 +233,10 @@ extern const u8 _mac_hidden_proto_to_hal_proto_cap[];
 
 u8 mac_hidden_wl_func_to_hal_wl_func(u8 func);
 
-#ifdef PLATFORM_LINUX
 u8 rtw_efuse_file_read(PADAPTER padapter, u8 *filepatch, u8 *buf, u32 len);
 #ifdef CONFIG_EFUSE_CONFIG_FILE
 u32 rtw_read_efuse_from_file(const char *path, u8 *buf, int map_size);
 u32 rtw_read_macaddr_from_file(const char *path, u8 *buf);
 #endif /* CONFIG_EFUSE_CONFIG_FILE */
-#endif /* PLATFORM_LINUX */
 
 #endif
diff --git a/include/rtw_io.h b/include/rtw_io.h
index 3cf55bb..abe0c14 100644
--- a/include/rtw_io.h
+++ b/include/rtw_io.h
@@ -23,9 +23,7 @@
 
 #define NUM_IOREQ		8
 
-#ifdef PLATFORM_LINUX
-	#define MAX_PROT_SZ	(64-16)
-#endif
+#define MAX_PROT_SZ	(64-16)
 
 #define _IOREADY			0
 #define _IO_WAIT_COMPLETE   1
diff --git a/include/rtw_ioctl.h b/include/rtw_ioctl.h
index 629fec2..23dae91 100644
--- a/include/rtw_ioctl.h
+++ b/include/rtw_ioctl.h
@@ -157,7 +157,7 @@ static NDIS_STATUS oid_null_function(struct oid_par_priv *poid_par_priv)
 }
 #endif
 
-#if defined(PLATFORM_LINUX) && defined(CONFIG_WIRELESS_EXT)
+#if defined(CONFIG_WIRELESS_EXT)
 extern struct iw_handler_def  rtw_handlers_def;
 #endif
 
diff --git a/include/rtw_mp.h b/include/rtw_mp.h
index 524ec70..875bf74 100644
--- a/include/rtw_mp.h
+++ b/include/rtw_mp.h
@@ -44,9 +44,7 @@ struct mp_xmit_frame {
 	u8 *mem_addr;
 	u32 sz[8];
 
-#if defined(PLATFORM_LINUX)
 	PURB pxmit_urb[8];
-#endif
 	u8 bpending[8];
 	sint ac_tag[8];
 	sint last[8];
diff --git a/include/rtw_recv.h b/include/rtw_recv.h
index a49b9d5..16765f6 100644
--- a/include/rtw_recv.h
+++ b/include/rtw_recv.h
@@ -390,15 +390,12 @@ struct recv_priv {
 	ATOMIC_T	rx_pending_cnt;
 
 #ifdef CONFIG_USB_INTERRUPT_IN_PIPE
-#ifdef PLATFORM_LINUX
 	PURB	int_in_urb;
-#endif
 
 	u8	*int_in_buf;
 #endif /* CONFIG_USB_INTERRUPT_IN_PIPE */
 
 #endif
-#if defined(PLATFORM_LINUX)
 	struct tasklet_struct irq_prepare_beacon_tasklet;
 	struct tasklet_struct recv_tasklet;
 	struct sk_buff_head free_recv_skb_queue;
@@ -411,8 +408,6 @@ struct recv_priv {
 	struct ifqueue rx_indicate_queue;
 #endif /* CONFIG_RX_INDICATE_QUEUE */
 
-#endif /* defined(PLATFORM_LINUX) */
-
 	u8 *pallocated_recv_buf;
 	u8 *precv_buf;    /* 4 alignment */
 	_queue	free_recv_buf_queue;
@@ -500,20 +495,13 @@ struct recv_buf {
 
 #ifdef CONFIG_USB_HCI
 
-#if defined(PLATFORM_LINUX)
 	PURB	purb;
 	dma_addr_t dma_transfer_addr;	/* (in) dma addr for transfer_buffer */
 	u32 alloc_sz;
-#endif
-
 	u8  irp_pending;
 	int  transfer_len;
-
 #endif
-
-#ifdef PLATFORM_LINUX
 	_pkt	*pskb;
-#endif
 };
 
 
diff --git a/include/rtw_xmit.h b/include/rtw_xmit.h
index 2f27e4b..f34c533 100644
--- a/include/rtw_xmit.h
+++ b/include/rtw_xmit.h
@@ -474,9 +474,7 @@ struct  submit_ctx {
 	u32 submit_time; /* */
 	u32 timeout_ms; /* <0: not synchronous, 0: wait forever, >0: up to ms waiting */
 	int status; /* status for operation */
-#ifdef PLATFORM_LINUX
 	struct completion done;
-#endif
 };
 
 enum {
@@ -529,10 +527,8 @@ struct xmit_buf {
 	u8 bulkout_id; /* for halmac */
 #endif /* RTW_HALMAC */
 
-#if defined(PLATFORM_LINUX)
 	PURB	pxmit_urb[8];
 	dma_addr_t dma_transfer_addr;	/* (in) dma addr for transfer_buffer */
-#endif
 
 	u8 bpending[8];
 
@@ -715,9 +711,7 @@ struct	xmit_priv	{
 	_sema	tx_retevt;/* all tx return event; */
 	u8		txirp_cnt;
 
-#ifdef PLATFORM_LINUX
 	struct tasklet_struct xmit_tasklet;
-#endif
 	/* per AC pending irp */
 	int beq_cnt;
 	int bkq_cnt;
@@ -731,16 +725,12 @@ struct	xmit_priv	{
 	struct rtw_tx_ring	tx_ring[PCI_MAX_TX_QUEUE_COUNT];
 	int	txringcount[PCI_MAX_TX_QUEUE_COUNT];
 	u8 	beaconDMAing;		/* flag of indicating beacon is transmiting to HW by DMA */
-#ifdef PLATFORM_LINUX
 	struct tasklet_struct xmit_tasklet;
 #endif
-#endif
 
 #if defined(CONFIG_SDIO_HCI) || defined(CONFIG_GSPI_HCI)
 #ifdef CONFIG_SDIO_TX_TASKLET
-#ifdef PLATFORM_LINUX
 	struct tasklet_struct xmit_tasklet;
-#endif /* PLATFORM_LINUX */
 #else
 	_thread_hdl_	SdioXmitThread;
 	_sema		SdioXmitSema;
diff --git a/include/sdio_ops.h b/include/sdio_ops.h
index fb1aaa5..1d22a14 100644
--- a/include/sdio_ops.h
+++ b/include/sdio_ops.h
@@ -26,9 +26,7 @@
 #define SDIO_ERR_VAL16	0xFFFF
 #define SDIO_ERR_VAL32	0xFFFFFFFF
 
-#ifdef PLATFORM_LINUX
 #include <sdio_ops_linux.h>
-#endif
 
 extern void sdio_set_intf_ops(_adapter *padapter, struct _io_ops *pops);
 
diff --git a/include/usb_ops.h b/include/usb_ops.h
index 350a675..15e9539 100644
--- a/include/usb_ops.h
+++ b/include/usb_ops.h
@@ -35,9 +35,7 @@ enum {
 #define MAX_VENDOR_REQ_CMD_SIZE	254		/* 8188cu SIE Support */
 #define MAX_USB_IO_CTL_SIZE		(MAX_VENDOR_REQ_CMD_SIZE + ALIGNMENT_UNIT)
 
-#ifdef PLATFORM_LINUX
 #include <usb_ops_linux.h>
-#endif /* PLATFORM_LINUX */
 
 #ifdef CONFIG_RTL8188E
 void rtl8188eu_set_hw_type(struct dvobj_priv *pdvobj);
diff --git a/include/wifi.h b/include/wifi.h
index 9a53060..8457b16 100644
--- a/include/wifi.h
+++ b/include/wifi.h
@@ -769,7 +769,6 @@ typedef	enum _ELEMENT_ID {
  * This structure refers to "HT BlockAckReq" as
  * described in 802.11n draft section 7.2.1.7.1
  */
-#if defined(PLATFORM_LINUX) || defined(CONFIG_RTL8712FW)
 struct rtw_ieee80211_bar {
 	unsigned short frame_control;
 	unsigned short duration;
@@ -778,17 +777,11 @@ struct rtw_ieee80211_bar {
 	unsigned short control;
 	unsigned short start_seq_num;
 } __attribute__((packed));
-#endif
 
 /* 802.11 BAR control masks */
 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL     0x0000
 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA  0x0004
 
-
-#if defined(PLATFORM_LINUX) || defined(CONFIG_RTL8712FW)
-
-
-
 /**
 * struct rtw_ieee80211_ht_cap - HT capabilities
 *
@@ -859,8 +852,6 @@ struct ADDBA_request {
 	unsigned short	BA_starting_seqctrl;
 }  __attribute__((packed));
 
-#endif
-
 typedef enum _HT_CAP_AMPDU_FACTOR {
 	MAX_AMPDU_FACTOR_8K		= 0,
 	MAX_AMPDU_FACTOR_16K	= 1,
diff --git a/include/wlan_bssdef.h b/include/wlan_bssdef.h
index d8d1f5d..1e08800 100644
--- a/include/wlan_bssdef.h
+++ b/include/wlan_bssdef.h
@@ -23,9 +23,6 @@
 
 #define MAX_IE_SZ	768
 
-
-#ifdef PLATFORM_LINUX
-
 #define NDIS_802_11_LENGTH_SSID         32
 #define NDIS_802_11_LENGTH_RATES        8
 #define NDIS_802_11_LENGTH_RATES_EX     16
@@ -270,9 +267,6 @@ typedef struct _NDIS_802_11_TEST {
 	} tt;
 } NDIS_802_11_TEST, *PNDIS_802_11_TEST;
 
-
-#endif /* end of #ifdef PLATFORM_LINUX */
-
 #ifndef Ndis802_11APMode
 #define Ndis802_11APMode (Ndis802_11InfrastructureMax+1)
 #endif
diff --git a/include/xmit_osdep.h b/include/xmit_osdep.h
index 7f18186..91ed2a5 100644
--- a/include/xmit_osdep.h
+++ b/include/xmit_osdep.h
@@ -30,8 +30,6 @@ struct pkt_file {
 	SIZE_T buf_len;
 };
 
-#ifdef PLATFORM_LINUX
-
 #define NR_XMITFRAME	256
 
 struct xmit_priv;
@@ -43,8 +41,6 @@ struct xmit_buf;
 extern int _rtw_xmit_entry(_pkt *pkt, _nic_hdl pnetdev);
 extern int rtw_xmit_entry(_pkt *pkt, _nic_hdl pnetdev);
 
-#endif /* PLATFORM_LINUX */
-
 void rtw_os_xmit_schedule(_adapter *padapter);
 
 int rtw_os_xmit_resource_alloc(_adapter *padapter, struct xmit_buf *pxmitbuf, u32 alloc_sz, u8 flag);
diff --git a/os_dep/linux/recv_linux.c b/os_dep/linux/recv_linux.c
index 3f2c070..a6945ea 100644
--- a/os_dep/linux/recv_linux.c
+++ b/os_dep/linux/recv_linux.c
@@ -113,9 +113,7 @@ int rtw_os_alloc_recvframe(_adapter *padapter, union recv_frame *precvframe, u8
 			/* The case of can't allocate skb is serious and may never be recovered,
 			 once bDriverStopped is enable, this task should be stopped.*/
 			if (!rtw_is_drv_stopped(secondary_padapter))
-#ifdef PLATFORM_LINUX
 				tasklet_schedule(&precvpriv->recv_tasklet);
-#endif
 			return ret;
 		}
 
diff --git a/os_dep/osdep_service.c b/os_dep/osdep_service.c
index 4fa1031..3415e3c 100644
--- a/os_dep/osdep_service.c
+++ b/os_dep/osdep_service.c
@@ -26,14 +26,10 @@
 #define RT_TAG	'1178'
 
 #ifdef DBG_MEMORY_LEAK
-#ifdef PLATFORM_LINUX
 atomic_t _malloc_cnt = ATOMIC_INIT(0);
 atomic_t _malloc_size = ATOMIC_INIT(0);
-#endif
 #endif /* DBG_MEMORY_LEAK */
 
-
-#if defined(PLATFORM_LINUX)
 /*
 * Translate the OS dependent @param error_code to OS independent RTW_STATUS_CODE
 * @return: one of RTW_STATUS_CODE
@@ -50,12 +46,6 @@ inline int RTW_STATUS_CODE(int error_code)
 		return _FAIL;
 	}
 }
-#else
-inline int RTW_STATUS_CODE(int error_code)
-{
-	return error_code;
-}
-#endif
 
 u32 rtw_atoi(u8 *s)
 {
@@ -81,17 +71,13 @@ u32 rtw_atoi(u8 *s)
 inline u8 *_rtw_vmalloc(u32 sz)
 {
 	u8	*pbuf;
-#ifdef PLATFORM_LINUX
 	pbuf = vmalloc(sz);
-#endif
 
 #ifdef DBG_MEMORY_LEAK
-#ifdef PLATFORM_LINUX
 	if (pbuf != NULL) {
 		atomic_inc(&_malloc_cnt);
 		atomic_add(sz, &_malloc_size);
 	}
-#endif
 #endif /* DBG_MEMORY_LEAK */
 
 	return pbuf;
@@ -100,24 +86,18 @@ inline u8 *_rtw_vmalloc(u32 sz)
 inline u8 *_rtw_zvmalloc(u32 sz)
 {
 	u8	*pbuf;
-#ifdef PLATFORM_LINUX
 	pbuf = _rtw_vmalloc(sz);
 	if (pbuf != NULL)
 		memset(pbuf, 0, sz);
-#endif
 	return pbuf;
 }
 
 inline void _rtw_vmfree(u8 *pbuf, u32 sz)
 {
-#ifdef PLATFORM_LINUX
 	vfree(pbuf);
-#endif
 #ifdef DBG_MEMORY_LEAK
-#ifdef PLATFORM_LINUX
 	atomic_dec(&_malloc_cnt);
 	atomic_sub(sz, &_malloc_size);
-#endif
 #endif /* DBG_MEMORY_LEAK */
 }
 
@@ -126,7 +106,6 @@ u8 *_rtw_malloc(u32 sz)
 
 	u8	*pbuf = NULL;
 
-#ifdef PLATFORM_LINUX
 #ifdef RTK_DMP_PLATFORM
 	if (sz > 0x4000)
 		pbuf = (u8 *)dvr_malloc(sz);
@@ -134,14 +113,11 @@ u8 *_rtw_malloc(u32 sz)
 #endif
 		pbuf = kmalloc(sz, in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
 
-#endif
 #ifdef DBG_MEMORY_LEAK
-#ifdef PLATFORM_LINUX
 	if (pbuf != NULL) {
 		atomic_inc(&_malloc_cnt);
 		atomic_add(sz, &_malloc_size);
 	}
-#endif
 #endif /* DBG_MEMORY_LEAK */
 
 	return pbuf;
@@ -154,10 +130,7 @@ u8 *_rtw_zmalloc(u32 sz)
 	u8	*pbuf = _rtw_malloc(sz);
 
 	if (pbuf != NULL) {
-
-#ifdef PLATFORM_LINUX
 		memset(pbuf, 0, sz);
-#endif
 	}
 
 	return pbuf;
@@ -166,7 +139,6 @@ u8 *_rtw_zmalloc(u32 sz)
 void	_rtw_mfree(u8 *pbuf, u32 sz)
 {
 
-#ifdef PLATFORM_LINUX
 #ifdef RTK_DMP_PLATFORM
 	if (sz > 0x4000)
 		dvr_free(pbuf);
@@ -174,21 +146,16 @@ void	_rtw_mfree(u8 *pbuf, u32 sz)
 #endif
 		kfree(pbuf);
 
-#endif
 #ifdef DBG_MEMORY_LEAK
-#ifdef PLATFORM_LINUX
 	atomic_dec(&_malloc_cnt);
 	atomic_sub(sz, &_malloc_size);
-#endif
 #endif /* DBG_MEMORY_LEAK */
 
 }
 
 inline struct sk_buff *_rtw_skb_alloc(u32 sz)
 {
-#ifdef PLATFORM_LINUX
 	return __dev_alloc_skb(sz, in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
-#endif /* PLATFORM_LINUX */
 }
 
 inline void _rtw_skb_free(struct sk_buff *skb)
@@ -198,57 +165,39 @@ inline void _rtw_skb_free(struct sk_buff *skb)
 
 inline struct sk_buff *_rtw_skb_copy(const struct sk_buff *skb)
 {
-#ifdef PLATFORM_LINUX
 	return skb_copy(skb, in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
-#endif /* PLATFORM_LINUX */
 }
 
 inline struct sk_buff *_rtw_skb_clone(struct sk_buff *skb)
 {
-#ifdef PLATFORM_LINUX
 	return skb_clone(skb, in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
-#endif /* PLATFORM_LINUX */
 }
 inline struct sk_buff *_rtw_pskb_copy(struct sk_buff *skb)
 {
-#ifdef PLATFORM_LINUX
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 36))
 	return pskb_copy(skb, in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
 #else
 	return skb_clone(skb, in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
 #endif
-#endif /* PLATFORM_LINUX */
 }
 
 inline int _rtw_netif_rx(_nic_hdl ndev, struct sk_buff *skb)
 {
-#if defined(PLATFORM_LINUX)
 	skb->dev = ndev;
 	return netif_rx(skb);
-#endif
 }
 
 #ifdef CONFIG_RTW_NAPI
 inline int _rtw_netif_receive_skb(_nic_hdl ndev, struct sk_buff *skb)
 {
-#if defined(PLATFORM_LINUX)
 	skb->dev = ndev;
 	return netif_receive_skb(skb);
-#else
-	rtw_warn_on(1);
-	return -1;
-#endif
 }
 
 #ifdef CONFIG_RTW_GRO
 inline gro_result_t _rtw_napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 {
-#if defined(PLATFORM_LINUX)
 	return napi_gro_receive(napi, skb);
-#else
-	rtw_warn_on(1);
-	return -1;
-#endif
 }
 #endif /* CONFIG_RTW_GRO */
 #endif /* CONFIG_RTW_NAPI */
@@ -264,23 +213,19 @@ void _rtw_skb_queue_purge(struct sk_buff_head *list)
 #ifdef CONFIG_USB_HCI
 inline void *_rtw_usb_buffer_alloc(struct usb_device *dev, size_t size, dma_addr_t *dma)
 {
-#ifdef PLATFORM_LINUX
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35))
 	return usb_alloc_coherent(dev, size, (in_interrupt() ? GFP_ATOMIC : GFP_KERNEL), dma);
 #else
 	return usb_buffer_alloc(dev, size, (in_interrupt() ? GFP_ATOMIC : GFP_KERNEL), dma);
 #endif
-#endif /* PLATFORM_LINUX */
 
 inline void _rtw_usb_buffer_free(struct usb_device *dev, size_t size, void *addr, dma_addr_t dma)
 {
-#ifdef PLATFORM_LINUX
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35))
 	usb_free_coherent(dev, size, addr, dma);
 #else
 	usb_buffer_free(dev, size, addr, dma);
 #endif
-#endif /* PLATFORM_LINUX */
 }
 #endif /* CONFIG_USB_HCI */
 
@@ -760,54 +705,33 @@ void rtw_mfree2d(void *pbuf, int h, int w, int size)
 
 void _rtw_memcpy(void *dst, const void *src, u32 sz)
 {
-
-#if defined(PLATFORM_LINUX)
-
 	memcpy(dst, src, sz);
-
-#endif
 }
 
 inline void _rtw_memmove(void *dst, const void *src, u32 sz)
 {
-#if defined(PLATFORM_LINUX)
 	memmove(dst, src, sz);
-#else
-	#warning "no implementation\n"
-#endif
 }
 
 int	_rtw_memcmp(const void *dst, const void *src, u32 sz)
 {
 
-#if defined(PLATFORM_LINUX)
 	/* under Linux/GNU/GLibc, the return value of memcmp for two same mem. chunk is 0 */
 
 	if (!(memcmp(dst, src, sz)))
 		return _TRUE;
 	else
 		return _FALSE;
-#endif
 }
 
 void _rtw_memset(void *pbuf, int c, u32 sz)
 {
-
-#if defined(PLATFORM_LINUX)
-
 	memset(pbuf, c, sz);
-
-#endif
 }
 
 void _rtw_init_listhead(_list *list)
 {
-
-#ifdef PLATFORM_LINUX
-
 	INIT_LIST_HEAD(list);
-
-#endif
 }
 
 /*
@@ -817,42 +741,27 @@ Otherwise, there will be racing condition.
 */
 u32	rtw_is_list_empty(_list *phead)
 {
-
-#ifdef PLATFORM_LINUX
-
 	if (list_empty(phead))
 		return _TRUE;
 	else
 		return _FALSE;
-
-#endif
 }
 
 void rtw_list_insert_head(_list *plist, _list *phead)
 {
-
-#ifdef PLATFORM_LINUX
 	list_add(plist, phead);
-#endif
 }
 
 void rtw_list_insert_tail(_list *plist, _list *phead)
 {
-
-#ifdef PLATFORM_LINUX
-
 	list_add_tail(plist, phead);
-
-#endif
 }
 
 void rtw_init_timer(_timer *ptimer, void *padapter, void *pfunc)
 {
 	_adapter *adapter = (_adapter *)padapter;
 
-#ifdef PLATFORM_LINUX
 	_init_timer(ptimer, adapter->pnetdev, pfunc, adapter);
-#endif
 }
 
 /*
@@ -864,12 +773,7 @@ Caller must check if the list is empty before calling rtw_list_delete
 
 void _rtw_init_sema(_sema	*sema, int init_val)
 {
-
-#ifdef PLATFORM_LINUX
-
 	sema_init(sema, init_val);
-
-#endif
 }
 
 void _rtw_free_sema(_sema	*sema)
@@ -878,62 +782,39 @@ void _rtw_free_sema(_sema	*sema)
 
 void _rtw_up_sema(_sema	*sema)
 {
-
-#ifdef PLATFORM_LINUX
-
 	up(sema);
-
-#endif
 }
 
 u32 _rtw_down_sema(_sema *sema)
 {
-
-#ifdef PLATFORM_LINUX
-
 	if (down_interruptible(sema))
 		return _FAIL;
 	else
 		return _SUCCESS;
-
-#endif
 }
 
 
 
 void	_rtw_mutex_init(_mutex *pmutex)
 {
-#ifdef PLATFORM_LINUX
-
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 37))
 	mutex_init(pmutex);
 #else
 	init_MUTEX(pmutex);
 #endif
-
-#endif
 }
 
 void	_rtw_mutex_free(_mutex *pmutex);
 void	_rtw_mutex_free(_mutex *pmutex)
 {
-#ifdef PLATFORM_LINUX
-
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 37))
 	mutex_destroy(pmutex);
 #endif
-
-#endif
 }
 
 void	_rtw_spinlock_init(_lock *plock)
 {
-
-#ifdef PLATFORM_LINUX
-
 	spin_lock_init(plock);
-
-#endif
 }
 
 void	_rtw_spinlock_free(_lock *plock)
@@ -942,42 +823,22 @@ void	_rtw_spinlock_free(_lock *plock)
 
 void	_rtw_spinlock(_lock	*plock)
 {
-
-#ifdef PLATFORM_LINUX
-
 	spin_lock(plock);
-
-#endif
 }
 
 void	_rtw_spinunlock(_lock *plock)
 {
-
-#ifdef PLATFORM_LINUX
-
 	spin_unlock(plock);
-
-#endif
 }
 
 void	_rtw_spinlock_ex(_lock	*plock)
 {
-
-#ifdef PLATFORM_LINUX
-
 	spin_lock(plock);
-
-#endif
 }
 
 void	_rtw_spinunlock_ex(_lock *plock)
 {
-
-#ifdef PLATFORM_LINUX
-
 	spin_unlock(plock);
-
-#endif
 }
 
 void _rtw_init_queue(_queue *pqueue)
@@ -1008,46 +869,32 @@ u32 rtw_end_of_queue_search(_list *head, _list *plist)
 
 u32	rtw_get_current_time(void)
 {
-
-#ifdef PLATFORM_LINUX
 	return jiffies;
-#endif
 }
 
 inline u32 rtw_systime_to_ms(u32 systime)
 {
-#ifdef PLATFORM_LINUX
 	return systime * 1000 / HZ;
-#endif
 }
 
 inline u32 rtw_ms_to_systime(u32 ms)
 {
-#ifdef PLATFORM_LINUX
 	return ms * HZ / 1000;
-#endif
 }
 
 /* the input parameter start use the same unit as returned by rtw_get_current_time */
 inline s32 rtw_get_passing_time_ms(u32 start)
 {
-#ifdef PLATFORM_LINUX
 	return rtw_systime_to_ms(jiffies - start);
-#endif
 }
 
 inline s32 rtw_get_time_interval_ms(u32 start, u32 end)
 {
-#ifdef PLATFORM_LINUX
 	return rtw_systime_to_ms(end - start);
-#endif
 }
 
 void rtw_sleep_schedulable(int ms)
 {
-
-#ifdef PLATFORM_LINUX
-
 	u32 delta;
 
 	delta = (ms * HZ) / 1000; /* (ms) */
@@ -1058,15 +905,11 @@ void rtw_sleep_schedulable(int ms)
 	if (schedule_timeout(delta) != 0)
 		return ;
 	return;
-
-#endif
 }
 
 
 void rtw_msleep_os(int ms)
 {
-
-#ifdef PLATFORM_LINUX
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 36))
 	if (ms < 20) {
 		unsigned long us = ms * 1000UL;
@@ -1074,13 +917,10 @@ void rtw_msleep_os(int ms)
 	} else
 #endif
 		msleep((unsigned int)ms);
-
-#endif
 }
+
 void rtw_usleep_os(int us)
 {
-#ifdef PLATFORM_LINUX
-
 	/* msleep((unsigned int)us); */
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 36))
 	usleep_range(us, us + 1);
@@ -1090,70 +930,35 @@ void rtw_usleep_os(int us)
 	else
 		msleep((us / 1000) + 1);
 #endif
-#endif
 }
 
 #ifdef DBG_DELAY_OS
 void _rtw_mdelay_os(int ms, const char *func, const int line)
 {
 	RTW_INFO("%s:%d %s(%d)\n", func, line, __FUNCTION__, ms);
-
-#if defined(PLATFORM_LINUX)
-
 	mdelay((unsigned long)ms);
-
-#endif
-
-
 }
+
 void _rtw_udelay_os(int us, const char *func, const int line)
 {
-
-#if 0
-	if (us > 1000) {
-		RTW_INFO("%s:%d %s(%d)\n", func, line, __FUNCTION__, us);
-		rtw_usleep_os(us);
-		return;
-	}
-#endif
-
-
 	RTW_INFO("%s:%d %s(%d)\n", func, line, __FUNCTION__, us);
-
-
-#if defined(PLATFORM_LINUX)
-
 	udelay((unsigned long)us);
-
-#endif
-
 }
 #else
 void rtw_mdelay_os(int ms)
 {
-
-#ifdef PLATFORM_LINUX
-
 	mdelay((unsigned long)ms);
-
-#endif
 }
+
 void rtw_udelay_os(int us)
 {
-
-#ifdef PLATFORM_LINUX
-
 	udelay((unsigned long)us);
-
-#endif
 }
 #endif
 
 void rtw_yield_os(void)
 {
-#ifdef PLATFORM_LINUX
 	yield();
-#endif
 }
 
 #define RTW_SUSPEND_LOCK_NAME "rtw_wifi"
@@ -1332,75 +1137,54 @@ inline void rtw_lock_resume_scan_timeout(u32 timeout_ms)
 
 inline void ATOMIC_SET(ATOMIC_T *v, int i)
 {
-#ifdef PLATFORM_LINUX
 	atomic_set(v, i);
-#endif
 }
 
 inline int ATOMIC_READ(ATOMIC_T *v)
 {
-#ifdef PLATFORM_LINUX
 	return atomic_read(v);
-#endif
 }
 
 inline void ATOMIC_ADD(ATOMIC_T *v, int i)
 {
-#ifdef PLATFORM_LINUX
 	atomic_add(i, v);
-#endif
 }
 inline void ATOMIC_SUB(ATOMIC_T *v, int i)
 {
-#ifdef PLATFORM_LINUX
 	atomic_sub(i, v);
-#endif
 }
 
 inline void ATOMIC_INC(ATOMIC_T *v)
 {
-#ifdef PLATFORM_LINUX
 	atomic_inc(v);
-#endif
 }
 
 inline void ATOMIC_DEC(ATOMIC_T *v)
 {
-#ifdef PLATFORM_LINUX
 	atomic_dec(v);
-#endif
 }
 
 inline int ATOMIC_ADD_RETURN(ATOMIC_T *v, int i)
 {
-#ifdef PLATFORM_LINUX
 	return atomic_add_return(i, v);
-#endif
 }
 
 inline int ATOMIC_SUB_RETURN(ATOMIC_T *v, int i)
 {
-#ifdef PLATFORM_LINUX
 	return atomic_sub_return(i, v);
-#endif
 }
 
 inline int ATOMIC_INC_RETURN(ATOMIC_T *v)
 {
-#ifdef PLATFORM_LINUX
 	return atomic_inc_return(v);
-#endif
 }
 
 inline int ATOMIC_DEC_RETURN(ATOMIC_T *v)
 {
-#ifdef PLATFORM_LINUX
 	return atomic_dec_return(v);
-#endif
 }
 
 
-#ifdef PLATFORM_LINUX
 /*
 * Open a file with the specific @param path, @param flag, @param mode
 * @param fpp the pointer of struct file pointer to get struct file pointer while file opening is success
@@ -1592,7 +1376,6 @@ static int storeToFile(const char *path, u8 *buf, u32 sz)
 	}
 	return ret;
 }
-#endif /* PLATFORM_LINUX */
 
 /*
 * Test if the specifi @param path is a file and readable
@@ -1601,15 +1384,10 @@ static int storeToFile(const char *path, u8 *buf, u32 sz)
 */
 int rtw_is_file_readable(const char *path)
 {
-#ifdef PLATFORM_LINUX
 	if (isFileReadable(path, NULL) == 0)
 		return _TRUE;
 	else
 		return _FALSE;
-#else
-	/* Todo... */
-	return _FALSE;
-#endif
 }
 
 /*
@@ -1620,15 +1398,10 @@ int rtw_is_file_readable(const char *path)
 */
 int rtw_is_file_readable_with_size(const char *path, u32 *sz)
 {
-#ifdef PLATFORM_LINUX
 	if (isFileReadable(path, sz) == 0)
 		return _TRUE;
 	else
 		return _FALSE;
-#else
-	/* Todo... */
-	return _FALSE;
-#endif
 }
 
 /*
@@ -1640,13 +1413,8 @@ int rtw_is_file_readable_with_size(const char *path, u32 *sz)
 */
 int rtw_retrieve_from_file(const char *path, u8 *buf, u32 sz)
 {
-#ifdef PLATFORM_LINUX
 	int ret = retriveFromFile(path, buf, sz);
 	return ret >= 0 ? ret : 0;
-#else
-	/* Todo... */
-	return 0;
-#endif
 }
 
 /*
@@ -1658,16 +1426,10 @@ int rtw_retrieve_from_file(const char *path, u8 *buf, u32 sz)
 */
 int rtw_store_to_file(const char *path, u8 *buf, u32 sz)
 {
-#ifdef PLATFORM_LINUX
 	int ret = storeToFile(path, buf, sz);
 	return ret >= 0 ? ret : 0;
-#else
-	/* Todo... */
-	return 0;
-#endif
 }
 
-#ifdef PLATFORM_LINUX
 struct net_device *rtw_alloc_etherdev_with_old_priv(int sizeof_priv, void *old_priv)
 {
 	struct net_device *pnetdev;
@@ -1796,7 +1558,6 @@ error:
 	return -1;
 
 }
-#endif
 
 #ifdef CONFIG_PLATFORM_SPRD
 	#ifdef do_div
@@ -1807,22 +1568,17 @@ error:
 
 u64 rtw_modular64(u64 x, u64 y)
 {
-#ifdef PLATFORM_LINUX
 	return do_div(x, y);
-#endif
 }
 
 u64 rtw_division64(u64 x, u64 y)
 {
-#ifdef PLATFORM_LINUX
 	do_div(x, y);
 	return x;
-#endif
 }
 
 inline u32 rtw_random32(void)
 {
-#ifdef PLATFORM_LINUX
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0))
 	return prandom_u32();
 #elif (LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18))
@@ -1832,7 +1588,6 @@ inline u32 rtw_random32(void)
 #else
 	return random32();
 #endif
-#endif
 }
 
 void rtw_buf_free(u8 **buf, u32 *buf_len)