[PATCH 2/3] Kconfig: Make ENV_HANDLING visible

[Sascha Hauer]

ENV_HANDLING is usable even without explicit loadenv/saveenv command
support. Instead of selecting this option from loadenv/saveenv, make
this option visible. loadenv/saveenv can then depend on ENV_HANDLING
rather than selecting it. This reduces Kconfig dependencies hassles.

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 commands/Kconfig |  4 ++--
 common/Kconfig   | 16 +++++++++++-----
 2 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/commands/Kconfig b/commands/Kconfig
index 39a2df5..56b9542 100644
--- a/commands/Kconfig
+++ b/commands/Kconfig
@@ -761,7 +761,7 @@ config CMD_GLOBAL
 
 config CMD_LOADENV
 	tristate
-	select ENV_HANDLING
+	depends on ENV_HANDLING
 	prompt "loadenv"
 	help
 	  Load environment from ENVFS
@@ -805,7 +805,7 @@ config CMD_MAGICVAR_HELP
 
 config CMD_SAVEENV
 	tristate
-	select ENV_HANDLING
+	depends on ENV_HANDLING
 	prompt "saveenv"
 	help
 	  Save environment to persistent storage
diff --git a/common/Kconfig b/common/Kconfig
index 503f43a..12f6e84 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -21,10 +21,6 @@ config HAS_KALLSYMS
 config HAS_MODULES
 	bool
 
-config ENV_HANDLING
-	select CRC32
-	bool
-
 config HAS_CACHE
 	bool
 	help
@@ -646,10 +642,20 @@ config PARTITION
 
 source common/partitions/Kconfig
 
+config ENV_HANDLING
+	select CRC32
+	bool "Support environment files storage"
+	default y if !SHELL_NONE
+	help
+	  Enabling this option will give you environment files which can be stored
+	  over reboots. The "saveenv" command will store all files under /env/ to
+	  the persistent environment, the "loadenv" command (also executed during
+	  startup) will bring them back. If unsure, say yes.
+
 config DEFAULT_ENVIRONMENT
 	bool
 	default y
-	select ENV_HANDLING
+	depends on ENV_HANDLING
 	prompt "Compile in default environment"
 	help
 	  Enabling this option will give you a default environment when
-- 
2.8.0.rc3