UBI: block: Add CONFIG_BLOCK dependency

[cascardo/linux.git] / drivers / mtd / ubi / Kconfig

diff --git a/drivers/mtd/ubi/Kconfig b/drivers/mtd/ubi/Kconfig
index 36663af..f0855ce 100644 (file)
--- a/drivers/mtd/ubi/Kconfig
+++ b/drivers/mtd/ubi/Kconfig
@@ -87,4 +87,20 @@ config MTD_UBI_GLUEBI
           work on top of UBI. Do not enable this unless you use legacy
           software.
 
+config MTD_UBI_BLOCK
+       bool "Read-only block devices on top of UBI volumes"
+       default n
+       depends on BLOCK
+       help
+          This option enables read-only UBI block devices support. UBI block
+          devices will be layered on top of UBI volumes, which means that the
+          UBI driver will transparently handle things like bad eraseblocks and
+          bit-flips. You can put any block-oriented file system on top of UBI
+          volumes in read-only mode (e.g., ext4), but it is probably most
+          practical for read-only file systems, like squashfs.
+
+          When selected, this feature will be built in the UBI driver.
+
+          If in doubt, say "N".
+
 endif # MTD_UBI