[PATCH] bootcount_ext: Add Ext4 build dependency

[Frédéric Danis]

This config option depends on EXT4 support.
If Ext4 write capability is not selected, it generate write error messages
and is unable to maintain boot counter.

Signed-off-by: Frédéric Danis <frederic.danis at collabora.com>
---
 drivers/bootcount/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/bootcount/Kconfig b/drivers/bootcount/Kconfig
index 0356f8ba18..c8e6fa7f89 100644
--- a/drivers/bootcount/Kconfig
+++ b/drivers/bootcount/Kconfig
@@ -27,6 +27,8 @@ config BOOTCOUNT_GENERIC
 
 config BOOTCOUNT_EXT
 	bool "Boot counter on EXT filesystem"
+	depends on FS_EXT4
+	select EXT4_WRITE
 	help
 	  Add support for maintaining boot count in a file on an EXT
 	  filesystem.
-- 
2.18.0