diff --git a/Makefile b/Makefile
index 642384a..64a470c 100755
--- a/Makefile
+++ b/Makefile
@@ -1031,13 +1031,13 @@ endif
 
 ifeq ($(CONFIG_MP_VHT_HW_TX_MODE), y)
 EXTRA_CFLAGS += -DCONFIG_MP_VHT_HW_TX_MODE
-ifeq ($(CONFIG_PLATFORM_I386_PC), y)
+#ifeq ($(CONFIG_PLATFORM_I386_PC), y)
 ## For I386 X86 ToolChain use Hardware FLOATING
-EXTRA_CFLAGS += -mhard-float
-else
+#EXTRA_CFLAGS += -mhard-float
+#else
 ## For ARM ToolChain use Hardware FLOATING
-EXTRA_CFLAGS += -mfloat-abi=hard
-endif
+#EXTRA_CFLAGS += -mfloat-abi=hard
+#endif
 endif
 
 ifeq ($(CONFIG_APPEND_VENDOR_IE_ENABLE), y)
diff --git a/core/rtw_mp.c b/core/rtw_mp.c
index ecd48a3..eb9ce72 100644
--- a/core/rtw_mp.c
+++ b/core/rtw_mp.c
@@ -33,6 +33,11 @@
 #define CEILING_NEG(X) ((X - (int)(X)) < 0 ? (int)(X - 1) : (int)(X))
 #define ceil(X) (((X) > 0) ? CEILING_POS(X) : CEILING_NEG(X))
 
+static int rtfloor(float x) {
+    int xi = (int)x;
+    return x < xi ? xi - 1 : xi;
+}
+#if 0
 int rtfloor(float x)
 {
 	int i = x - 2;
@@ -42,6 +47,7 @@ int rtfloor(float x)
 	return i;
 }
 #endif
+#endif
 
 #ifdef CONFIG_MP_INCLUDED
 u32 read_macreg(_adapter *padapter, u32 addr, u32 sz)
@@ -2766,7 +2772,7 @@ void CRC16_generator(
 }
 
 
-
+#if !defined(__arm__)
 /*========================================
 	SFD		SIGNAL	SERVICE	LENGTH	CRC
 	16 bit	8 bit	8 bit	16 bit	16 bit
@@ -2846,7 +2852,7 @@ void CCK_generator(
 	ByteToBit(pPMacTxInfo->CRC16, crc16_out, 2);
 
 }
-
+#endif
 
 void PMAC_Get_Pkt_Param(
 	PRT_PMAC_TX_INFO	pPMacTxInfo,
@@ -2919,7 +2925,7 @@ void PMAC_Get_Pkt_Param(
 		pPMacTxInfo->m_STBC = 1;
 }
 
-
+#if !defined(__arm__)
 UINT LDPC_parameter_generator(
 	UINT N_pld_int,
 	UINT N_CBPSS,
@@ -3265,6 +3271,7 @@ void L_SIG_generator(
 	_rtw_memset(pPMacTxInfo->LSIG, 0, 3);
 	ByteToBit(pPMacTxInfo->LSIG, (bool *)sig_bi, 3);
 }
+#endif
 
 
 void CRC8_generator(
diff --git a/include/rtw_mp.h b/include/rtw_mp.h
index 1b7bdfc..0d144ed 100644
--- a/include/rtw_mp.h
+++ b/include/rtw_mp.h
@@ -781,6 +781,7 @@ PMAC_Get_Pkt_Param(
 	PRT_PMAC_TX_INFO	pPMacTxInfo,
 	PRT_PMAC_PKT_INFO	pPMacPktInfo
 );
+#if !defined(__arm__)
 void
 CCK_generator(
 	PRT_PMAC_TX_INFO	pPMacTxInfo,
@@ -797,7 +798,7 @@ L_SIG_generator(
 	PRT_PMAC_TX_INFO	pPMacTxInfo,
 	PRT_PMAC_PKT_INFO	pPMacPktInfo
 );
-
+#endif
 void HT_SIG_generator(
 	PRT_PMAC_TX_INFO	pPMacTxInfo,
 	PRT_PMAC_PKT_INFO	pPMacPktInfo);
diff --git a/os_dep/linux/ioctl_mp.c b/os_dep/linux/ioctl_mp.c
index dbebe8f..e6fc0b7 100644
--- a/os_dep/linux/ioctl_mp.c
+++ b/os_dep/linux/ioctl_mp.c
@@ -1597,7 +1597,7 @@ int rtw_mp_tx(struct net_device *dev,
 			_rtw_memset(pMptCtx->PMacTxInfo.MacAddress, 0xFF, ETH_ALEN);
 
 			PMAC_Get_Pkt_Param(&pMptCtx->PMacTxInfo, &pMptCtx->PMacPktInfo);
-
+#if !defined(__arm__)
 			if (MPT_IS_CCK_RATE(pMptCtx->PMacTxInfo.TX_RATE))
 
 				CCK_generator(&pMptCtx->PMacTxInfo, &pMptCtx->PMacPktInfo);
@@ -1606,6 +1606,7 @@ int rtw_mp_tx(struct net_device *dev,
 				/* 24 BIT*/
 				L_SIG_generator(pMptCtx->PMacPktInfo.N_sym, &pMptCtx->PMacTxInfo, &pMptCtx->PMacPktInfo);
 			}
+#endif
 			/*	48BIT*/
 			if (MPT_IS_HT_RATE(pMptCtx->PMacTxInfo.TX_RATE))
 				HT_SIG_generator(&pMptCtx->PMacTxInfo, &pMptCtx->PMacPktInfo);