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-rw-r--r--Makefile11
1 files changed, 8 insertions, 3 deletions
diff --git a/Makefile b/Makefile
index 0ad6e8d9b0b..679094a9b2d 100644
--- a/Makefile
+++ b/Makefile
@@ -118,12 +118,17 @@ $(if $(KBUILD_OUTPUT),, \
# Check that OUTPUT directory is not the same as where we have kernel src
$(if $(filter-out $(KBUILD_OUTPUT),$(shell /bin/pwd)),, \
$(error Output directory (O=...) specifies kernel src dir))
-PHONY += $(MAKECMDGOALS)
-$(filter-out _all,$(MAKECMDGOALS)) _all:
+PHONY += $(MAKECMDGOALS) sub-make
+
+$(filter-out _all sub-make,$(MAKECMDGOALS)) _all: sub-make
+ $(Q)@:
+
+sub-make: FORCE
$(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \
KBUILD_SRC=$(CURDIR) \
- KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile $@
+ KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \
+ $(filter-out _all sub-make,$(MAKECMDGOALS))
# Leave processing to above invocation of make
skip-makefile := 1