GENERIC_LINUX_CONFIG?=$(firstword $(wildcard $(GENERIC_PLATFORM_DIR)/config-$(KERNEL_PATCHVER) $(GENERIC_PLATFORM_DIR)/config-default))
LINUX_CONFIG?=$(firstword $(wildcard $(foreach subdir,$(PLATFORM_DIR) $(PLATFORM_SUBDIR),$(subdir)/config-$(KERNEL_PATCHVER) $(subdir)/config-default)) $(PLATFORM_DIR)/config-$(KERNEL_PATCHVER))
-LINUX_SUBCONFIG?=$(firstword $(wildcard $(PLATFORM_SUBDIR)/config-$(KERNEL_PATCHVER) $(PLATFORM_SUBDIR)/config-default))
+LINUX_SUBCONFIG?=$(if $(SHARED_LINUX_CONFIG),,$(firstword $(wildcard $(PLATFORM_SUBDIR)/config-$(KERNEL_PATCHVER) $(PLATFORM_SUBDIR)/config-default)))
ifeq ($(LINUX_CONFIG),$(LINUX_SUBCONFIG))
LINUX_SUBCONFIG:=
endif