diff --git a/core/efuse/rtw_efuse.c b/core/efuse/rtw_efuse.c
index ba5c602..ab3bb10 100644
--- a/core/efuse/rtw_efuse.c
+++ b/core/efuse/rtw_efuse.c
@@ -3091,9 +3091,9 @@ u32 rtw_read_efuse_from_file(const char *path, u8 *buf, int map_size)
 		goto exit;
 	}
 
-	file_data = rtw_vmalloc(file_size);
+	file_data = vmalloc(file_size);
 	if (!file_data) {
-		RTW_ERR("%s rtw_vmalloc(%d) fail\n", __func__, file_size);
+		RTW_ERR("%s vmalloc(%d) fail\n", __func__, file_size);
 		goto exit;
 	}
 
@@ -3103,9 +3103,9 @@ u32 rtw_read_efuse_from_file(const char *path, u8 *buf, int map_size)
 		goto exit;
 	}
 
-	map = rtw_vmalloc(map_size);
+	map = vmalloc(map_size);
 	if (!map) {
-		RTW_ERR("%s rtw_vmalloc(%d) fail\n", __func__, map_size);
+		RTW_ERR("%s vmalloc(%d) fail\n", __func__, map_size);
 		goto exit;
 	}
 	_rtw_memset(map, 0xff, map_size);
diff --git a/include/osdep_service.h b/include/osdep_service.h
index 8d9c08a..b9b1154 100644
--- a/include/osdep_service.h
+++ b/include/osdep_service.h
@@ -166,21 +166,18 @@ void dbg_rtw_usb_buffer_free(struct usb_device *dev, size_t size, void *addr, dm
 #endif /* CONFIG_USB_HCI */
 
 #ifdef CONFIG_USE_VMALLOC
-#define rtw_vmalloc(sz)			dbg_rtw_vmalloc((sz), MSTAT_TYPE_VIR, __FUNCTION__, __LINE__)
 #define rtw_zvmalloc(sz)			dbg_rtw_zvmalloc((sz), MSTAT_TYPE_VIR, __FUNCTION__, __LINE__)
 #define rtw_vmfree(pbuf, sz)		dbg_rtw_vmfree((pbuf), (sz), MSTAT_TYPE_VIR, __FUNCTION__, __LINE__)
 #define rtw_vmalloc_f(sz, mstat_f)			dbg_rtw_vmalloc((sz), ((mstat_f) & 0xff00) | MSTAT_TYPE_VIR, __FUNCTION__, __LINE__)
 #define rtw_zvmalloc_f(sz, mstat_f)		dbg_rtw_zvmalloc((sz), ((mstat_f) & 0xff00) | MSTAT_TYPE_VIR, __FUNCTION__, __LINE__)
 #define rtw_vmfree_f(pbuf, sz, mstat_f)	dbg_rtw_vmfree((pbuf), (sz), ((mstat_f) & 0xff00) | MSTAT_TYPE_VIR, __FUNCTION__, __LINE__)
 #else /* CONFIG_USE_VMALLOC */
-#define rtw_vmalloc(sz)			dbg_rtw_malloc((sz), MSTAT_TYPE_PHY, __FUNCTION__, __LINE__)
 #define rtw_zvmalloc(sz)			dbg_rtw_zmalloc((sz), MSTAT_TYPE_PHY, __FUNCTION__, __LINE__)
 #define rtw_vmfree(pbuf, sz)		dbg_rtw_mfree((pbuf), (sz), MSTAT_TYPE_PHY, __FUNCTION__, __LINE__)
 #define rtw_vmalloc_f(sz, mstat_f)			dbg_rtw_malloc((sz), ((mstat_f) & 0xff00) | MSTAT_TYPE_PHY, __FUNCTION__, __LINE__)
 #define rtw_zvmalloc_f(sz, mstat_f)		dbg_rtw_zmalloc((sz), ((mstat_f) & 0xff00) | MSTAT_TYPE_PHY, __FUNCTION__, __LINE__)
 #define rtw_vmfree_f(pbuf, sz, mstat_f)	dbg_rtw_mfree((pbuf), (sz), ((mstat_f) & 0xff00) | MSTAT_TYPE_PHY, __FUNCTION__, __LINE__)
 #endif /* CONFIG_USE_VMALLOC */
-#define rtw_malloc(sz)			dbg_rtw_malloc((sz), MSTAT_TYPE_PHY, __FUNCTION__, __LINE__)
 #define rtw_zmalloc(sz)			dbg_rtw_zmalloc((sz), MSTAT_TYPE_PHY, __FUNCTION__, __LINE__)
 #define rtw_mfree(pbuf, sz)		dbg_rtw_mfree((pbuf), (sz), MSTAT_TYPE_PHY, __FUNCTION__, __LINE__)
 #define rtw_malloc_f(sz, mstat_f)			dbg_rtw_malloc((sz), ((mstat_f) & 0xff00) | MSTAT_TYPE_PHY, __FUNCTION__, __LINE__)
@@ -214,7 +211,6 @@ void dbg_rtw_usb_buffer_free(struct usb_device *dev, size_t size, void *addr, dm
 #define rtw_mstat_update(flag, status, sz) do {} while (0)
 #define rtw_mstat_dump(sel) do {} while (0)
 #define match_mstat_sniff_rules(flags, size) _FALSE
-void *_rtw_vmalloc(u32 sz);
 void *_rtw_zvmalloc(u32 sz);
 void _rtw_vmfree(void *pbuf, u32 sz);
 void *_rtw_zmalloc(u32 sz);
diff --git a/os_dep/linux/ioctl_linux.c b/os_dep/linux/ioctl_linux.c
index 4e0ac65..35421a7 100644
--- a/os_dep/linux/ioctl_linux.c
+++ b/os_dep/linux/ioctl_linux.c
@@ -7880,7 +7880,7 @@ static int rtw_wx_set_priv(struct net_device *dev,
 		return -EFAULT;
 
 	len = dwrq->length;
-	ext = rtw_vmalloc(len);
+	ext = vmalloc(len);
 	if (!ext)
 		return -ENOMEM;
 
@@ -7892,7 +7892,7 @@ static int rtw_wx_set_priv(struct net_device *dev,
 
 
 #ifdef CONFIG_DEBUG_RTW_WX_SET_PRIV
-	ext_dbg = rtw_vmalloc(len);
+	ext_dbg = vmalloc(len);
 	if (!ext_dbg) {
 		rtw_vmfree(ext, len);
 		return -ENOMEM;
diff --git a/os_dep/osdep_service.c b/os_dep/osdep_service.c
index 1a044e6..ce7086c 100644
--- a/os_dep/osdep_service.c
+++ b/os_dep/osdep_service.c
@@ -73,37 +73,11 @@ u32 rtw_atoi(u8 *s)
 
 }
 
-inline void *_rtw_vmalloc(u32 sz)
-{
-	void *pbuf;
-#ifdef PLATFORM_LINUX
-	pbuf = vmalloc(sz);
-#endif
-#ifdef PLATFORM_FREEBSD
-	pbuf = malloc(sz, M_DEVBUF, M_NOWAIT);
-#endif
-
-#ifdef PLATFORM_WINDOWS
-	NdisAllocateMemoryWithTag(&pbuf, sz, RT_TAG);
-#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;
-}
-
 inline void *_rtw_zvmalloc(u32 sz)
 {
 	void *pbuf;
 #ifdef PLATFORM_LINUX
-	pbuf = _rtw_vmalloc(sz);
+	pbuf = vmalloc(sz);
 	if (pbuf != NULL)
 		memset(pbuf, 0, sz);
 #endif
@@ -575,7 +549,7 @@ inline void *dbg_rtw_vmalloc(u32 sz, const enum mstat_f flags, const char *func,
 	if (match_mstat_sniff_rules(flags, sz))
 		RTW_INFO("DBG_MEM_ALLOC %s:%d %s(%d)\n", func, line, __FUNCTION__, (sz));
 
-	p = _rtw_vmalloc((sz));
+	p = vmalloc((sz));
 
 	rtw_mstat_update(
 		flags