diff --git a/drivers/staging/sm7xx/smtcfb.c b/drivers/staging/sm7xx/smtcfb.c
index d007e4a12c14b8bd93370c4bb38a1aef5ca42cd5..0d65971457fc88a7e726a47d17e63d5599911125 100644
--- a/drivers/staging/sm7xx/smtcfb.c
+++ b/drivers/staging/sm7xx/smtcfb.c
@@ -26,10 +26,6 @@
  *	Boyod.yang <boyod.yang@siliconmotion.com.cn>
  */
 
-#ifndef __KERNEL__
-#define __KERNEL__
-#endif
-
 #include <linux/io.h>
 #include <linux/fb.h>
 #include <linux/pci.h>
@@ -1019,6 +1015,7 @@ static void __devexit smtcfb_pci_remove(struct pci_dev *pdev)
 	smtc_free_fb_info(sfb);
 }
 
+#ifdef CONFIG_PM
 /* Jason (08/14/2009)
  * suspend function, called when the suspend event is triggered
  */
@@ -1111,6 +1108,7 @@ static int __maybe_unused smtcfb_resume(struct pci_dev *pdev)
 
 	return 0;
 }
+#endif
 
 /* Jason (08/13/2009)
  * pci_driver struct used to wrap the original driver