diff --git a/drivers/staging/rtl8712/basic_types.h b/drivers/staging/rtl8712/basic_types.h
index b8ecd92ca9d4..aecded87dd4c 100644
--- a/drivers/staging/rtl8712/basic_types.h
+++ b/drivers/staging/rtl8712/basic_types.h
@@ -14,12 +14,8 @@
 #ifndef __BASIC_TYPES_H__
 #define __BASIC_TYPES_H__
 
-#define SUCCESS	0
-#define FAIL	(-1)
-
 #include <linux/types.h>
 
-#define SIZE_T __kernel_size_t
 #define sint signed int
 
 /* Should we extend this to be host_addr_t and target_addr_t for case:
@@ -28,8 +24,5 @@
  */
 #define addr_t unsigned long
 
-#define MEM_ALIGNMENT_OFFSET	(sizeof(SIZE_T))
-#define MEM_ALIGNMENT_PADDING	(sizeof(SIZE_T) - 1)
-
 #endif /*__BASIC_TYPES_H__*/