diff --git a/[refs] b/[refs]
index 26b68baed370..e0552143f9a5 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 7406060e292c389fe6f38bd23493de9b57f2f4fc
+refs/heads/master: 48e546b7f281f251893baa40769581fd15f085fb
diff --git a/trunk/drivers/mtd/Kconfig b/trunk/drivers/mtd/Kconfig
index 4925aa962af3..82c202b874ff 100644
--- a/trunk/drivers/mtd/Kconfig
+++ b/trunk/drivers/mtd/Kconfig
@@ -13,13 +13,16 @@ menuconfig MTD
 if MTD
 
 config MTD_TESTS
-	tristate "MTD tests support"
+	tristate "MTD tests support (DANGEROUS)"
 	depends on m
 	help
 	  This option includes various MTD tests into compilation. The tests
 	  should normally be compiled as kernel modules. The modules perform
 	  various checks and verifications when loaded.
 
+	  WARNING: some of the tests will ERASE entire MTD device which they
+	  test. Do not use these tests unless you really know what you do.
+
 config MTD_REDBOOT_PARTS
 	tristate "RedBoot partition table parsing"
 	---help---