kconfig: add defconfig_list/module option

This makes it possible to change two options which were hardcoded sofar.
1. Any symbol can now take the role of CONFIG_MODULES
2. The more useful option is to change the list of default file names,
   which kconfig uses to load the base configuration if .config isn't
   available.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/init/Kconfig b/init/Kconfig
index 3b36a1d53656..9fb403af1085 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1,3 +1,11 @@
+config DEFCONFIG_LIST
+        string
+        option defconfig_list
+        default "/lib/modules/$UNAME_RELEASE/.config"
+        default "/etc/kernel-config"
+        default "/boot/config-$UNAME_RELEASE"
+        default "arch/$ARCH/defconfig"
+
 menu "Code maturity level options"
 
 config EXPERIMENTAL