[PATCH] kconfig: Use KCONFIG_CONFIG instead of .config

[Markus Schneider-Pargmann]

When using a custom location for kernel config files this merge config
command fails as it doesn't use the configuration set with
KCONFIG_CONFIG.

Signed-off-by: Markus Schneider-Pargmann <msp@xxxxxxxxxxxx>
---

Notes:
    Hi,
    
    This patch helps me to merge_configs with config files that are not
    .config (set by using KCONFIG_CONFIG=<PATH>). I am not sure if I break
    something with that change.
    
    I didn't add any stable kernels as this is a kernel config issue and no
    bug in the kernel code itself.
    
    Best,
    Markus

 scripts/kconfig/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 4eee155121a8..106159e75d40 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -99,7 +99,7 @@ config-fragments = $(call configfiles,$@)
 
 %.config: $(obj)/conf
 	$(if $(config-fragments),, $(error $@ fragment does not exists on this architecture))
-	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m .config $(config-fragments)
+	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m $(KCONFIG_CONFIG) $(config-fragments)
 	$(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
 
 PHONY += tinyconfig
-- 
2.43.0