[PATCH] kbuild: revert "fix make -jN with multiple targets with O=..."
Commit 296e0855b0f9a4ec9be17106ac541745a55b2ce1:
"kbuild: fix make -jN with multiple targets with O=..."
causes a ~95% increase in build time for the kernel. Before: 4m21s
after: 8m1.403s. Can we revert this until another approach is found?
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/Makefile b/Makefile
index 74d67b2..48d569d 100644
--- a/Makefile
+++ b/Makefile
@@ -106,13 +106,12 @@
$(if $(KBUILD_OUTPUT),, \
$(error output directory "$(saved-output)" does not exist))
-.PHONY: $(MAKECMDGOALS) cdbuilddir
-$(MAKECMDGOALS) _all: cdbuilddir
+.PHONY: $(MAKECMDGOALS)
-cdbuilddir:
+$(filter-out _all,$(MAKECMDGOALS)) _all:
$(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \
KBUILD_SRC=$(CURDIR) \
- KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile $(MAKECMDGOALS)
+ KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile $@
# Leave processing to above invocation of make
skip-makefile := 1