From eca2fae28a1cd911c4387d35c8e50ce1138add10 Mon Sep 17 00:00:00 2001
From: YOUR_NAME <liujiandong1@huawei.com>
Date: Mon, 12 Apr 2021 20:37:22 +0800
Subject: [PATCH] IssueNo:#I3IBCL Description:use posix instead of lwip self
 Feature or Bugfix:Bugfix Binary Source:No

---
 components/net/lwip-2.1/porting/include/arch/cc.h    |  4 ++--
 components/net/lwip-2.1/porting/include/lwip/netif.h |  8 ++++----
 .../net/lwip-2.1/porting/include/lwip/sockets.h      | 12 ++++++------
 components/net/lwip-2.1/porting/src/netdb_porting.c  |  1 -
 4 files changed, 12 insertions(+), 13 deletions(-)

diff --git a/components/net/lwip-2.1/porting/include/arch/cc.h b/components/net/lwip-2.1/porting/include/arch/cc.h
index 4a3e5903..c2eebaf5 100644
--- a/components/net/lwip-2.1/porting/include/arch/cc.h
+++ b/components/net/lwip-2.1/porting/include/arch/cc.h
@@ -64,10 +64,10 @@
 #define LWIP_DNS_API_DECLARE_STRUCTS  0
 
 #ifndef __SIZEOF_POINTER__
-#define __SIZEOF_POINTER__ 4   // 32位系统
+#define __SIZEOF_POINTER__ 4   // 32 bit system
 #endif
 
-#define LOS_TASK_STATUS_DETACHED   0x0100  // 预留字段
+#define LOS_TASK_STATUS_DETACHED   0x0100  // reserved
 
 #if defined(__arm__) && defined(__ARMCC_VERSION)
     /* Keil uVision4 tools */
diff --git a/components/net/lwip-2.1/porting/include/lwip/netif.h b/components/net/lwip-2.1/porting/include/lwip/netif.h
index bba71682..1e57b768 100644
--- a/components/net/lwip-2.1/porting/include/lwip/netif.h
+++ b/components/net/lwip-2.1/porting/include/lwip/netif.h
@@ -32,8 +32,8 @@
 #ifndef _LWIP_PORTING_NETIF_H_
 #define _LWIP_PORTING_NETIF_H_
 
-#include <net/if.h> // For IFNAMSIZ/IF_NAMESIZE and `struct ifreq', by `lwip/netif.h' and `api/sockets.c'
-#include <netinet/ip.h> // For IP_OFFMASK, by `core/ipv4/ip4_frag.c'
+#include <net/if.h>
+#include <netinet/ip.h>
 
 #define netif_find netifapi_netif_find_by_name
 
@@ -54,7 +54,7 @@
 #undef LWIP_NETIF_CLIENT_DATA_INDEX_DHCP
 #endif
 
-#include <lwip/etharp.h> // For ETHARP_HWADDR_LEN, by `hieth-sf src/interface.c' and `wal/wal_net.c'
+#include <lwip/etharp.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -64,7 +64,7 @@ extern "C" {
 #undef NETIF_NAMESIZE
 #define NETIF_NAMESIZE IFNAMSIZ
 
-#define LOOPBACK_IF         0 // 772
+#define LOOPBACK_IF         0
 #define ETHERNET_DRIVER_IF  1
 #define WIFI_DRIVER_IF      801
 #define BT_PROXY_IF         802
diff --git a/components/net/lwip-2.1/porting/include/lwip/sockets.h b/components/net/lwip-2.1/porting/include/lwip/sockets.h
index 0aefba52..3ff28693 100644
--- a/components/net/lwip-2.1/porting/include/lwip/sockets.h
+++ b/components/net/lwip-2.1/porting/include/lwip/sockets.h
@@ -33,13 +33,13 @@
 #define _LWIP_PORTING_SOCKETS_H_
 
 #include <sys/socket.h>
-#include <poll.h> // For poll_table
-#include <netinet/tcp.h> // For TCP_NODELAY etc.
+#include <poll.h>
+#include <netinet/tcp.h>
 #include <netinet/in.h>
-#include <sys/ioctl.h> // For FIONREAD etc.
-#include <sys/select.h> // For FD_SET
-#include <limits.h> // For IOV_MAX
-#include <fcntl.h> // For F_SETFL
+#include <sys/ioctl.h>
+#include <sys/select.h>
+#include <limits.h>
+#include <fcntl.h>
 #include_next <lwip/sockets.h>
 #include <fatfs.h>
 
diff --git a/components/net/lwip-2.1/porting/src/netdb_porting.c b/components/net/lwip-2.1/porting/src/netdb_porting.c
index 30accb25..804d7e07 100644
--- a/components/net/lwip-2.1/porting/src/netdb_porting.c
+++ b/components/net/lwip-2.1/porting/src/netdb_porting.c
@@ -29,7 +29,6 @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include "netdb.h"
 #include "lwip/netdb.h"
 
 struct hostent *gethostbyname(const char *name)