4 files changed, 18 insertions, 18 deletions
diff --git a/components/net/sal_socket/impl/af_inet.h b/components/net/sal_socket/impl/af_inet.h
index caffbe1400..421d15bfae 100644
--- a/components/net/sal_socket/impl/af_inet.h
+++ b/components/net/sal_socket/impl/af_inet.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/net/sal_socket/impl/af_inet_at.c b/components/net/sal_socket/impl/af_inet_at.c
index 135e4183c4..c85dfe9f06 100644
--- a/components/net/sal_socket/impl/af_inet_at.c
+++ b/components/net/sal_socket/impl/af_inet_at.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -85,7 +85,7 @@ static const struct sal_socket_ops at_socket_ops =
 #endif /* SAL_USING_POSIX */
 };
 
-static const struct sal_netdb_ops at_netdb_ops = 
+static const struct sal_netdb_ops at_netdb_ops =
 {
     at_gethostbyname,
     NULL,
diff --git a/components/net/sal_socket/impl/af_inet_lwip.c b/components/net/sal_socket/impl/af_inet_lwip.c
index 56df735ab9..2e19275b5d 100644
--- a/components/net/sal_socket/impl/af_inet_lwip.c
+++ b/components/net/sal_socket/impl/af_inet_lwip.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -229,7 +229,7 @@ int inet_ioctlsocket(int socket, long cmd, void *arg)
     {
     case F_GETFL:
     case F_SETFL:
-        return lwip_fcntl(socket, cmd, (int) arg); 
+        return lwip_fcntl(socket, cmd, (int) arg);
 
     default:
         return lwip_ioctl(socket, cmd, arg);
@@ -320,7 +320,7 @@ static const struct sal_proto_family lwip_inet_family =
     AF_INET6,
 #else
     AF_INET,
-#endif 
+#endif
     &lwip_socket_ops,
     &lwip_netdb_ops,
 };
@@ -329,7 +329,7 @@ static const struct sal_proto_family lwip_inet_family =
 int sal_lwip_netdev_set_pf_info(struct netdev *netdev)
 {
     RT_ASSERT(netdev);
-    
+
     netdev->sal_user_data = (void *) &lwip_inet_family;
     return 0;
 }
diff --git a/components/net/sal_socket/impl/proto_mbedtls.c b/components/net/sal_socket/impl/proto_mbedtls.c
index 3472bbeaf5..79fbdcc5d4 100644
--- a/components/net/sal_socket/impl/proto_mbedtls.c
+++ b/components/net/sal_socket/impl/proto_mbedtls.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -59,7 +59,7 @@ static void *mebdtls_socket(int socket)
     {
         tls_free(session);
         session = RT_NULL;
-        
+
         return RT_NULL;
     }
 
@@ -68,7 +68,7 @@ static void *mebdtls_socket(int socket)
     {
         mbedtls_client_close(session);
         return RT_NULL;
-    }  
+    }
     session->server_fd.fd = socket;
 
     return (void *)session;
@@ -89,7 +89,7 @@ int mbedtls_net_send_cb(void *ctx, const unsigned char *buf, size_t len)
     {
         return -1;
     }
-    
+
     pf = (struct sal_proto_family *)sock->netdev->sal_user_data;
 
     /* Register scoket sendto option to TLS send data callback */
@@ -128,7 +128,7 @@ int mbedtls_net_recv_cb( void *ctx, unsigned char *buf, size_t len)
     }
 
     pf = (struct sal_proto_family *)sock->netdev->sal_user_data;
-    
+
     /* Register scoket recvfrom option to TLS recv data callback */
     ret = pf->skt_ops->recvfrom((int) sock->user_data, (void *)buf, len, 0, RT_NULL, RT_NULL);
     if (ret < 0)
@@ -183,7 +183,7 @@ static int mbedtls_connect(void *sock)
         mbedtls_x509_crt_verify_info((char *)session->buffer, session->buffer_len, "  ! ", ret);
         goto __exit;
     }
-    
+
     return ret;
 
 __exit:
@@ -199,27 +199,27 @@ static int mbedtls_closesocket(void *sock)
 {
     struct sal_socket *ssock;
     int socket;
-    
+
     if (sock == RT_NULL)
     {
         return 0;
     }
-    
+
     socket = ((MbedTLSSession *) sock)->server_fd.fd;
     ssock = sal_get_socket(socket);
     if (ssock == RT_NULL)
     {
         return -1;
     }
-    
+
     /* Close TLS client session, and clean user-data in SAL socket */
     mbedtls_client_close((MbedTLSSession *) sock);
     ssock->user_data_tls = RT_NULL;
-    
+
     return 0;
 }
 
-static const struct sal_proto_tls_ops mbedtls_proto_ops= 
+static const struct sal_proto_tls_ops mbedtls_proto_ops=
 {
     RT_NULL,
     mebdtls_socket,