diff --git a/core/rtw_efuse.c b/core/rtw_efuse.c
index a7ed43e..097708d 100644
--- a/core/rtw_efuse.c
+++ b/core/rtw_efuse.c
@@ -1406,9 +1406,9 @@ 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;
 	}
 
@@ -1418,9 +1418,9 @@ 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;
 	}
 	memset(map, 0xff, map_size);
diff --git a/include/osdep_service.h b/include/osdep_service.h
index efde90c..6e119f1 100644
--- a/include/osdep_service.h
+++ b/include/osdep_service.h
@@ -184,7 +184,6 @@ void dbg_rtw_usb_buffer_free(struct usb_device *dev, size_t size, void *addr, dm
 #else /* DBG_MEM_ALLOC */
 #define rtw_mstat_update(flag, status, sz) do {} while (0)
 #define rtw_mstat_dump(sel) do {} while (0)
-u8 *_rtw_vmalloc(u32 sz);
 u8 *_rtw_zvmalloc(u32 sz);
 void	_rtw_vmfree(u8 *pbuf, u32 sz);
 u8 *_rtw_zmalloc(u32 sz);
@@ -208,14 +207,12 @@ void *_rtw_usb_buffer_alloc(struct usb_device *dev, size_t size, dma_addr_t *dma
 void _rtw_usb_buffer_free(struct usb_device *dev, size_t size, void *addr, dma_addr_t dma);
 
 #ifdef CONFIG_USE_VMALLOC
-#define rtw_vmalloc(sz)			_rtw_vmalloc((sz))
 #define rtw_zvmalloc(sz)			_rtw_zvmalloc((sz))
 #define rtw_vmfree(pbuf, sz)		_rtw_vmfree((pbuf), (sz))
 #define rtw_vmalloc_f(sz, mstat_f)			_rtw_vmalloc((sz))
 #define rtw_zvmalloc_f(sz, mstat_f)		_rtw_zvmalloc((sz))
 #define rtw_vmfree_f(pbuf, sz, mstat_f)	_rtw_vmfree((pbuf), (sz))
 #else /* CONFIG_USE_VMALLOC */
-#define rtw_vmalloc(sz)			_rtw_malloc((sz))
 #define rtw_zvmalloc(sz)			_rtw_zmalloc((sz))
 #define rtw_vmfree(pbuf, sz)		_rtw_mfree((pbuf), (sz))
 #define rtw_vmalloc_f(sz, mstat_f)			_rtw_malloc((sz))
diff --git a/os_dep/ioctl_linux.c b/os_dep/ioctl_linux.c
index 1d64fbc..15d8910 100644
--- a/os_dep/ioctl_linux.c
+++ b/os_dep/ioctl_linux.c
@@ -7738,7 +7738,7 @@ 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;
 
@@ -7750,7 +7750,7 @@ 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 f1740b1..b0fa7b2 100644
--- a/os_dep/osdep_service.c
+++ b/os_dep/osdep_service.c
@@ -62,15 +62,10 @@ u32 rtw_atoi(u8 *s)
 
 }
 
-inline u8 *_rtw_vmalloc(u32 sz)
-{
-	return vmalloc(sz);
-}
-
 inline u8 *_rtw_zvmalloc(u32 sz)
 {
 	u8	*pbuf;
-	pbuf = _rtw_vmalloc(sz);
+	pbuf = vmalloc(sz);
 	if (pbuf != NULL)
 		memset(pbuf, 0, sz);
 	return pbuf;
@@ -360,7 +355,7 @@ inline u8 *dbg_rtw_vmalloc(u32 sz, const enum mstat_f flags, const char *func, c
 	if (match_mstat_sniff_rules(flags, sz))
 		RTW_INFO("DBG_MEM_ALLOC %s:%d %s(%d)\n", func, line, __func__, (sz));
 
-	p = _rtw_vmalloc((sz));
+	p = vmalloc((sz));
 
 	rtw_mstat_update(
 		flags