diff --git a/drivers/staging/rtl8723au/hal/odm_interface.c b/drivers/staging/rtl8723au/hal/odm_interface.c
index 13c790f51f5f..6ca12c418076 100644
--- a/drivers/staging/rtl8723au/hal/odm_interface.c
+++ b/drivers/staging/rtl8723au/hal/odm_interface.c
@@ -154,24 +154,6 @@ u32 ODM_GetRFReg(
 	return PHY_QueryRFReg(Adapter, eRFPath, RegAddr, BitMask);
 }
 
-/*  */
-/*  ODM MISC relative API. */
-/*  */
-void
-ODM_AcquireSpinLock(
-	struct dm_odm_t *pDM_Odm,
-	enum rt_spinlock_type	type
-	)
-{
-}
-
-void ODM_ReleaseSpinLock(
-	struct dm_odm_t *pDM_Odm,
-	enum rt_spinlock_type	type
-	)
-{
-}
-
 /*  */
 /*  Work item relative API. FOr MP driver only~! */
 /*  */
diff --git a/drivers/staging/rtl8723au/include/odm_interface.h b/drivers/staging/rtl8723au/include/odm_interface.h
index fe0d52764990..2d51e0197b6a 100644
--- a/drivers/staging/rtl8723au/include/odm_interface.h
+++ b/drivers/staging/rtl8723au/include/odm_interface.h
@@ -106,11 +106,6 @@ u32 ODM_GetRFReg(struct dm_odm_t *pDM_Odm, enum RF_RADIO_PATH eRFPath,
 /*  Memory Relative Function. */
 s32 ODM_CompareMemory(struct dm_odm_t *pDM_Odm, void *pBuf1, void *pBuf2, u32 length);
 
-/*  ODM MISC-spin lock relative API. */
-void ODM_AcquireSpinLock(struct dm_odm_t *pDM_Odm, enum rt_spinlock_type type);
-
-void ODM_ReleaseSpinLock(struct dm_odm_t *pDM_Odm, enum rt_spinlock_type type);
-
 /*  ODM MISC-workitem relative API. */
 void ODM_InitializeWorkItem(struct dm_odm_t *pDM_Odm, void *pRtWorkItem,
 			    RT_WORKITEM_CALL_BACK RtWorkItemCallback, void *pContext, const char *szID);