diff --git a/hal/rtl8188eu_xmit.c b/hal/rtl8188eu_xmit.c
index fc346f2..ac7860f 100644
--- a/hal/rtl8188eu_xmit.c
+++ b/hal/rtl8188eu_xmit.c
@@ -343,18 +343,7 @@ static s32 update_txdesc(struct xmit_frame *pxmitframe, u8 *pmem, s32 sz ,u8 bag
 
 			ptxdesc->txdw5 |= cpu_to_le32(MRateToHwRate(pmlmeext->tx_rate));
 		}
-
-#ifdef CONFIG_TCP_CSUM_OFFLOAD_TX
-		/* offset 24 */
-		if ( pattrib->hw_tcp_csum == 1 ) {
-			u8 ip_hdr_offset = 32 + pattrib->hdrlen + pattrib->iv_len + 8;
-			ptxdesc->txdw7 = (1 << 31) | (ip_hdr_offset << 16);
-			DBG_88E("ptxdesc->txdw7 = %08x\n", ptxdesc->txdw7);
-		}
-#endif
-	}
-	else if ((pxmitframe->frame_tag&0x0f)== MGNT_FRAMETAG)
-	{
+	} else if ((pxmitframe->frame_tag&0x0f)== MGNT_FRAMETAG) {
 
 		/* offset 4 */
 		ptxdesc->txdw1 |= cpu_to_le32(pattrib->mac_id&0x3f);
diff --git a/include/osdep_service.h b/include/osdep_service.h
index b4ebe23..83634f9 100644
--- a/include/osdep_service.h
+++ b/include/osdep_service.h
@@ -68,11 +68,6 @@
 #include <net/cfg80211.h>
 #endif //CONFIG_IOCTL_CFG80211
 
-#ifdef CONFIG_TCP_CSUM_OFFLOAD_TX
-#include <linux/in.h>
-#include <linux/udp.h>
-#endif
-
 #include <linux/usb.h>
 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21))
 #include <linux/usb_ch9.h>
diff --git a/include/rtw_xmit.h b/include/rtw_xmit.h
index 450e8b3..52e87ec 100644
--- a/include/rtw_xmit.h
+++ b/include/rtw_xmit.h
@@ -176,9 +176,6 @@ struct pkt_attrib
 	u8	intel_proxim;
 	u8	retry_ctrl;
 	struct sta_info * psta;
-#ifdef CONFIG_TCP_CSUM_OFFLOAD_TX
-	u8	hw_tcp_csum;
-#endif
 };
 
 #define WLANHDR_OFFSET	64
diff --git a/os_dep/os_intfs.c b/os_dep/os_intfs.c
index f58e767..5b6976b 100644
--- a/os_dep/os_intfs.c
+++ b/os_dep/os_intfs.c
@@ -942,11 +942,6 @@ struct net_device *rtw_init_netdev(_adapter *old_padapter)
 	pnetdev->get_stats = rtw_net_get_stats;
 	pnetdev->do_ioctl = rtw_ioctl;
 #endif
-
-
-#ifdef CONFIG_TCP_CSUM_OFFLOAD_TX
-	pnetdev->features |= NETIF_F_IP_CSUM;
-#endif
 	pnetdev->watchdog_timeo = HZ*3; /* 3 second timeout */
 #ifdef CONFIG_WIRELESS_EXT
 	pnetdev->wireless_handlers = (struct iw_handler_def *)&rtw_handlers_def;
diff --git a/os_dep/xmit_linux.c b/os_dep/xmit_linux.c
index e3b90ba..b408463 100644
--- a/os_dep/xmit_linux.c
+++ b/os_dep/xmit_linux.c
@@ -86,41 +86,6 @@ _func_exit_;
 
 void rtw_set_tx_chksum_offload(_pkt *pkt, struct pkt_attrib *pattrib)
 {
-
-#ifdef CONFIG_TCP_CSUM_OFFLOAD_TX
-	struct sk_buff *skb = (struct sk_buff *)pkt;
-	pattrib->hw_tcp_csum = 0;
-
-	if (skb->ip_summed == CHECKSUM_PARTIAL) {
-		if (skb_shinfo(skb)->nr_frags == 0)
-		{
-                        const struct iphdr *ip = ip_hdr(skb);
-                        if (ip->protocol == IPPROTO_TCP) {
-                                // TCP checksum offload by HW
-                                DBG_88E("CHECKSUM_PARTIAL TCP\n");
-                                pattrib->hw_tcp_csum = 1;
-                                //skb_checksum_help(skb);
-                        } else if (ip->protocol == IPPROTO_UDP) {
-                                //DBG_88E("CHECKSUM_PARTIAL UDP\n");
-#if 1
-                                skb_checksum_help(skb);
-#else
-                                // Set UDP checksum = 0 to skip checksum check
-                                struct udphdr *udp = skb_transport_header(skb);
-                                udp->check = 0;
-#endif
-                        } else {
-				DBG_88E("%s-%d TCP CSUM offload Error!!\n", __func__, __LINE__);
-                                WARN_ON(1);     /* we need a WARN() */
-			    }
-		}
-		else { // IP fragmentation case
-			DBG_88E("%s-%d nr_frags != 0, using skb_checksum_help(skb);!!\n", __func__, __LINE__);
-			skb_checksum_help(skb);
-		}
-	}
-#endif
-
 }
 
 int rtw_os_xmit_resource_alloc(_adapter *padapter, struct xmit_buf *pxmitbuf,u32 alloc_sz)