diff --git a/drivers/staging/rtl8723au/hal/odm_interface.c b/drivers/staging/rtl8723au/hal/odm_interface.c
index bef1269749d04a70621503f80afb96dea24817a2..13c790f51f5fb6b2f4d6e20ce6c85a8f32a4a64d 100644
--- a/drivers/staging/rtl8723au/hal/odm_interface.c
+++ b/drivers/staging/rtl8723au/hal/odm_interface.c
@@ -154,28 +154,6 @@ u32 ODM_GetRFReg(
 	return PHY_QueryRFReg(Adapter, eRFPath, RegAddr, BitMask);
 }
 
-/*  */
-/*  ODM Memory relative API. */
-/*  */
-void ODM_AllocateMemory(
-	struct dm_odm_t *pDM_Odm,
-	void **pPtr,
-	u32		length
-	)
-{
-	*pPtr = rtw_zvmalloc(length);
-}
-
-/*  length could be ignored, used to detect memory leakage. */
-void ODM_FreeMemory(
-	struct dm_odm_t *pDM_Odm,
-	void *pPtr,
-	u32		length
-	)
-{
-	rtw_vmfree(pPtr, length);
-}
-
 /*  */
 /*  ODM MISC relative API. */
 /*  */
diff --git a/drivers/staging/rtl8723au/include/odm_interface.h b/drivers/staging/rtl8723au/include/odm_interface.h
index f216b5846f92691052fefbf4a9d8e0518f6638d8..fe0d52764990d255a11241816a1164c9974f4053 100644
--- a/drivers/staging/rtl8723au/include/odm_interface.h
+++ b/drivers/staging/rtl8723au/include/odm_interface.h
@@ -104,9 +104,6 @@ u32 ODM_GetRFReg(struct dm_odm_t *pDM_Odm, enum RF_RADIO_PATH eRFPath,
 		 u32 RegAddr, u32 BitMask);
 
 /*  Memory Relative Function. */
-void ODM_AllocateMemory(struct dm_odm_t *pDM_Odm, void **pPtr, u32 length);
-void ODM_FreeMemory(struct dm_odm_t *pDM_Odm, void *pPtr, u32 length);
-
 s32 ODM_CompareMemory(struct dm_odm_t *pDM_Odm, void *pBuf1, void *pBuf2, u32 length);
 
 /*  ODM MISC-spin lock relative API. */