diff --git a/components/CMSIS/Kconfig b/components/CMSIS/Kconfig
index 8a27f4440..f428eea54 100644
--- a/components/CMSIS/Kconfig
+++ b/components/CMSIS/Kconfig
@@ -12,7 +12,7 @@ config RT_USING_RTT_CMSIS
     bool "Using CMSIS Header files in RT-Thread"
     default n
     help
-        Use CMSIS header files in RT-Thread/components/CMSIS. Otherwise, use the 
+        Use CMSIS header files in RT-Thread/components/CMSIS. Otherwise, use the
         CMSIS header files in BSP.
 
 endmenu
diff --git a/components/dfs/Kconfig b/components/dfs/Kconfig
index 87b346026..ff250b772 100644
--- a/components/dfs/Kconfig
+++ b/components/dfs/Kconfig
@@ -13,14 +13,14 @@ if RT_USING_DFS
         default y
 
     config DFS_FILESYSTEMS_MAX
-        int "The maximal number of mounted file system"        
+        int "The maximal number of mounted file system"
         default 4 if RT_USING_DFS_NFS
-        default 2 
+        default 2
 
     config DFS_FILESYSTEM_TYPES_MAX
         int "The maximal number of file system type"
         default 4 if RT_USING_DFS_NFS
-        default 2 
+        default 2
 
     config DFS_FD_MAX
         int "The maximal number of opened files"
@@ -40,9 +40,9 @@ if RT_USING_DFS
 
         config RT_DFS_ELM_WORD_ACCESS
             bool "Using RT_DFS_ELM_WORD_ACCESS"
-            default y   
+            default y
 
-        choice 
+        choice
             prompt "Support long file name"
             default RT_DFS_ELM_USE_LFN_0
 
@@ -117,7 +117,7 @@ if RT_USING_DFS
         default n
 
     if RT_USING_DFS_UFFS
-        choice 
+        choice
             prompt "UFFS ECC mode"
             default RT_UFFS_ECC_MODE_1
 
diff --git a/components/drivers/Kconfig b/components/drivers/Kconfig
index 8d8e0aa59..4ed6f34d6 100755
--- a/components/drivers/Kconfig
+++ b/components/drivers/Kconfig
@@ -48,13 +48,13 @@ config RT_USING_CPUTIME
         ms_tick = clock_cpu_millisecond(t2 - t1);
         us_tick = clock_cpu_microsecond(t2 - t1);
 
-if RT_USING_CPUTIME 
+if RT_USING_CPUTIME
     config RT_USING_CPUTIME_CORTEXM
         bool "Use DWT for CPU time"
         default y
         depends on ARCH_ARM_CORTEX_M3 || ARCH_ARM_CORTEX_M4 || ARCH_ARM_CORTEX_M7
         help
-            Some Cortex-M3/4/7 MCU has Data Watchpoint and Trace Register, use 
+            Some Cortex-M3/4/7 MCU has Data Watchpoint and Trace Register, use
             the cycle counter in DWT for CPU time.
 endif
 
@@ -103,7 +103,7 @@ config RT_USING_RTC
         select PKG_USING_NETUTILS
         select PKG_NETUTILS_NTP
         default n
-        
+
         if RTC_SYNC_USING_NTP
         config RTC_NTP_FIRST_SYNC_DELAY
             int "NTP first sync delay time(second) for network connect"
@@ -153,20 +153,20 @@ config RT_USING_SPI
         config RT_USING_SFUD
             bool "Using Serial Flash Universal Driver"
             default n
-            if RT_USING_SFUD            
+            if RT_USING_SFUD
                 config RT_SFUD_USING_SFDP
                 bool "Using auto probe flash JEDEC SFDP parameter"
                 default y
-                
+
                 config RT_SFUD_USING_FLASH_INFO_TABLE
                 bool "Using defined supported flash chip information table"
                 default y
-                
+
                 config RT_DEBUG_SFUD
                 bool "Show more SFUD debug information"
                 default n
             endif
-    
+
         config RT_USING_W25QXX
             bool "Using W25QXX SPI NorFlash"
             default n
@@ -246,7 +246,7 @@ menu "Using USB"
             config USB_PRODUCT_ID
                 hex "USB Product ID"
                 default 0x0001
-            
+
             config RT_USB_DEVICE_COMPOSITE
                 bool "Enable composite device"
                 default n
diff --git a/components/libc/Kconfig b/components/libc/Kconfig
index 7ad048e90..2b4f6af8b 100644
--- a/components/libc/Kconfig
+++ b/components/libc/Kconfig
@@ -22,7 +22,7 @@ if RT_USING_LIBC && RT_USING_DFS
     config RT_USING_POSIX_TERMIOS
         bool "Enable termios feature"
         default n
-    
+
     config RT_USING_POSIX_AIO
         bool "Enable AIO"
         default n
diff --git a/components/net/freemodbus/Kconfig b/components/net/freemodbus/Kconfig
index 1dbeca31d..9a84efa0c 100644
--- a/components/net/freemodbus/Kconfig
+++ b/components/net/freemodbus/Kconfig
@@ -1,17 +1,17 @@
 menu "Modbus master and slave stack"
 
 config RT_USING_MODBUS
-	bool "Enable Modbus stack"
-	default n
+    bool "Enable Modbus stack"
+    default n
 
-	if RT_USING_MODBUS
-		config RT_MODBUS_MASTER_RTU
-			bool "RTU master mode"
-			default n
+    if RT_USING_MODBUS
+        config RT_MODBUS_MASTER_RTU
+            bool "RTU master mode"
+            default n
 
-		config RT_MODBUS_SLAVE_RTU
-			bool "RTU slave mode"
-			default n
+        config RT_MODBUS_SLAVE_RTU
+            bool "RTU slave mode"
+            default n
             if RT_MODBUS_SLAVE_RTU
                 config RT_MODBUS_SLAVE_USE_CONTROL_PIN
                     bool "Use Contorl Pin"
@@ -22,6 +22,6 @@ config RT_USING_MODBUS
                             default 10
                     endif
             endif
-	endif
+    endif
 
 endmenu
diff --git a/components/vbus/Kconfig b/components/vbus/Kconfig
index 3b0f245b5..af58f7862 100644
--- a/components/vbus/Kconfig
+++ b/components/vbus/Kconfig
@@ -10,8 +10,8 @@ if RT_USING_VBUS
         default n
         help
             When enable remote file system, the application can visit the remote file system
-            through VBUS with POSIX file I/O. 
-    
+            through VBUS with POSIX file I/O.
+
     config RT_USING_VBUS_RSHELL
         bool "Enable Remote Shell on VBUS"
         default n