kbuild: create include/generated in silentoldconfig

The toplevel Makefile creates the directory if it runs silentoldconfig
automatically, but if run manually, it fails:

  $ make mrproper
  $ make defconfig && make silentoldconfig
  *** Default configuration is based on 'x86_64_defconfig'
  #
  # configuration written to .config
  #
  scripts/kconfig/conf -s arch/x86/Kconfig

  *** Error during update of the kernel configuration.
  ...

Move the mkdir command to the silentoldconfig target to make it work.

Signed-off-by: Michal Marek <mmarek@suse.cz>

2 files changed, 1 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 96b32e5bb973..aa608c2959f5 100644
--- a/Makefile
+++ b/Makefile
@@ -492,7 +492,6 @@ $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
 # we execute the config step to be sure to catch updated Kconfig files
 include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
-        $(Q)mkdir -p include/generated
         $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
 else
 # external modules needs include/generated/autoconf.h and include/config/auto.conf
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 80599e3a7994..999e8a7d5bf7 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -27,6 +27,7 @@ oldconfig: $(obj)/conf
         $< -o $(Kconfig)
 
 silentoldconfig: $(obj)/conf
+        $(Q)mkdir -p include/generated
         $< -s $(Kconfig)
 
 localmodconfig: $(obj)/streamline_config.pl $(obj)/conf