diff --git a/include/os/rt_linux.h b/include/os/rt_linux.h
index f5975a1..b1e641b 100644
--- a/include/os/rt_linux.h
+++ b/include/os/rt_linux.h
@@ -855,13 +855,15 @@ void linux_pci_unmap_single(void *handle, ra_dma_addr_t dma_addr, size_t size, i
 		(RTPKT_TO_OSPKT(_pkt)->len)
 #define SET_OS_PKT_LEN(_pkt, _len)	\
 		(RTPKT_TO_OSPKT(_pkt)->len) = (_len)
-		
-#define GET_OS_PKT_DATATAIL(_pkt) \
-		(RTPKT_TO_OSPKT(_pkt)->tail)
+
 #ifdef NET_SKBUFF_DATA_USES_OFFSET
+#define GET_OS_PKT_DATATAIL(_pkt) \
+        (RTPKT_TO_OSPKT(_pkt)->head + (ULONG)RTPKT_TO_OSPKT(_pkt)->tail)
 #define SET_OS_PKT_DATATAIL(_pkt, _start, _len)	\
-		((RTPKT_TO_OSPKT(_pkt))->tail) = (ULONG)RTPKT_TO_OSPKT(_pkt)->data - (ULONG)(RTPKT_TO_OSPKT(_pkt)->head) + (_len)
+		((RTPKT_TO_OSPKT(_pkt))->tail) = (ULONG)_start - (ULONG)(RTPKT_TO_OSPKT(_pkt)->head) + (_len)
 #else
+#define GET_OS_PKT_DATATAIL(_pkt) \
+        (RTPKT_TO_OSPKT(_pkt)->tail)
 #define SET_OS_PKT_DATATAIL(_pkt, _start, _len)	\
 		((RTPKT_TO_OSPKT(_pkt))->tail) = (PUCHAR)((_start) + (_len))
 #endif
diff --git a/os/linux/rt_linux.c b/os/linux/rt_linux.c
index e618a72..7b10cee 100644
--- a/os/linux/rt_linux.c
+++ b/os/linux/rt_linux.c
@@ -505,15 +505,11 @@ PNDIS_PACKET duplicate_pkt(
 		MEM_DBG_PKT_ALLOC_INC(skb);
 
 		skb_reserve(skb, 2);
-#ifdef NET_SKBUFF_DATA_USES_OFFSET
-		NdisMoveMemory(skb->data+skb->tail, pHeader802_3, HdrLen);
-		skb_put(skb, HdrLen);
-		NdisMoveMemory(skb->data+skb->tail, pData, DataSize);
-#else
-		NdisMoveMemory(skb->tail, pHeader802_3, HdrLen);
+
+		NdisMoveMemory(GET_OS_PKT_DATATAIL(skb), pHeader802_3, HdrLen);
 		skb_put(skb, HdrLen);
-		NdisMoveMemory(skb->tail, pData, DataSize);
-#endif
+		NdisMoveMemory(GET_OS_PKT_DATATAIL(skb), pData, DataSize);
+
 		skb_put(skb, DataSize);
 		skb->dev = pNetDev;	/*get_netdev_from_bssid(pAd, FromWhichBSSID); */
 		pPacket = OSPKT_TO_RTPKT(skb);
@@ -665,11 +661,7 @@ PNDIS_PACKET ClonePacket(
 		pClonedPkt->dev = pRxPkt->dev;
 		pClonedPkt->data = pData;
 		pClonedPkt->len = DataSize;
-#ifdef NET_SKBUFF_DATA_USES_OFFSET
-		pClonedPkt->tail = (ULONG)pClonedPkt->data - (ULONG)pClonedPkt->head + pClonedPkt->len;
-#else
-		pClonedPkt->tail = pClonedPkt->data + pClonedPkt->len;
-#endif
+		SET_OS_PKT_DATATAIL(pClonedPkt, pClonedPkt->data, pClonedPkt->len);
 		ASSERT(DataSize < 1530);
 	}
 	return pClonedPkt;
@@ -715,11 +707,7 @@ void wlan_802_11_to_802_3_packet(
 	pOSPkt->dev = pNetDev;
 	pOSPkt->data = pData;
 	pOSPkt->len = DataSize;
-#ifdef NET_SKBUFF_DATA_USES_OFFSET
-	pOSPkt->tail = (pOSPkt->data-pOSPkt->head)+pOSPkt->len;
-#else
-	pOSPkt->tail = pOSPkt->data + pOSPkt->len;
-#endif
+	SET_OS_PKT_DATATAIL(pOSPkt, pOSPkt->data, pOSPkt->len);
 
 	/* */
 	/* copy 802.3 header */
diff --git a/os/linux/rt_profile.c b/os/linux/rt_profile.c
index 14431d1..f64b681 100644
--- a/os/linux/rt_profile.c
+++ b/os/linux/rt_profile.c
@@ -399,7 +399,7 @@ void STA_MonPktSend(
 
     if (pRxBlk->DataSize + sizeof(wlan_ng_prism2_header) > RX_BUFFER_AGGRESIZE)
     {
-        DBGPRINT(RT_DEBUG_ERROR, ("%s : Size is too large! (%d)\n", __FUNCTION__, pRxBlk->DataSize + sizeof(wlan_ng_prism2_header)));
+        DBGPRINT(RT_DEBUG_ERROR, ("%s : Size is too large! (%d)\n", __FUNCTION__, pRxBlk->DataSize + (UINT)sizeof(wlan_ng_prism2_header)));
 		goto err_free_sk_buff;
     }