[SCSI] megaraid version 2.20.4.6

Signed-off by: Seokmann Ju <sju@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/megaraid/mega_common.h b/drivers/scsi/megaraid/mega_common.h
index 18969a4..69df1a9 100644
--- a/drivers/scsi/megaraid/mega_common.h
+++ b/drivers/scsi/megaraid/mega_common.h
@@ -27,6 +27,7 @@
 #include <linux/list.h>
 #include <linux/version.h>
 #include <linux/moduleparam.h>
+#include <linux/dma-mapping.h>
 #include <asm/semaphore.h>
 #include <scsi/scsi.h>
 #include <scsi/scsi_cmnd.h>