From fc7abc658013d326d47145f85402cead0728b1a0 Mon Sep 17 00:00:00 2001
From: ArdaFu <pengfei.fu@gmail.com>
Date: Mon, 16 Oct 2017 15:12:35 +0800
Subject: [PATCH] [components][drivers] Check macro "RT_USING_DFS" when using
 DFS relative method/functions.

---
 components/drivers/serial/serial.c | 3 ++-
 components/drivers/src/pipe.c      | 2 ++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/components/drivers/serial/serial.c b/components/drivers/serial/serial.c
index 48b60caeaf..c279490dec 100644
--- a/components/drivers/serial/serial.c
+++ b/components/drivers/serial/serial.c
@@ -48,6 +48,7 @@
 #include <posix_termios.h>
 #endif
 
+#ifdef RT_USING_DFS
 #ifdef RT_USING_DFS_DEVFS
 #include <dfs_posix.h>
 
@@ -209,7 +210,7 @@ const static struct dfs_file_ops _serial_fops =
     serial_fops_poll,
 };
 #endif
-
+#endif
 /*
  * Serial poll routines
  */
diff --git a/components/drivers/src/pipe.c b/components/drivers/src/pipe.c
index b455870c8a..bc9ed5f9a2 100644
--- a/components/drivers/src/pipe.c
+++ b/components/drivers/src/pipe.c
@@ -23,8 +23,10 @@
  */
 #include <rthw.h>
 #include <rtdevice.h>
+#if defined(RT_USING_DFS)
 #include <dfs_file.h>
 #include <dfs_posix.h>
+#endif
 
 #if defined(RT_USING_DFS) && defined(RT_USING_DFS_DEVFS)
 static int pipe_open(struct dfs_fd *fd)