kconfig: integrate split config into silentoldconfig

Now that kconfig can load multiple configurations, it becomes simple to
integrate the split config step, by simply comparing the new .config file with
the old auto.conf (and then saving the new auto.conf).  A nice side effect is
that this saves a bit of disk space and cache, as no data needs to be read
from or saved into the splitted config files anymore (e.g.  include/config is
now 648KB instead of 5.2MB).

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, 1 insertions, 1 deletions

diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 6f8e84c1c1f2..9791d870ae71 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -175,7 +175,7 @@ boot := arch/arm/boot
 #       them changed.  We use .arch to indicate when they were updated
 #       last, otherwise make uses the target directory mtime.
 
-include/asm-arm/.arch: $(wildcard include/config/arch/*.h) include/config/MARKER
+include/asm-arm/.arch: $(wildcard include/config/arch/*.h) include/config/auto.conf
         @echo '  SYMLINK include/asm-arm/arch -> include/asm-arm/$(INCDIR)'
 ifneq ($(KBUILD_SRC),)
         $(Q)mkdir -p include/asm-arm