Dne 9.9.2014 13:02, Masahiro Yamada napsal(a): > sub-make: FORCE > $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \ > - KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \ > - $(filter-out _all sub-make,$(MAKECMDGOALS)) > + -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS)) > > # Leave processing to above invocation of make > skip-makefile := 1 > @@ -188,6 +158,34 @@ ifeq ($(skip-makefile),) > # so that IDEs/editors are able to understand relative filenames. > MAKEFLAGS += --no-print-directory > > +# Call a source code checker (by default, "sparse") as part of the > +# C compilation. > +# > +# Use 'make C=1' to enable checking of only re-compiled files. > +# Use 'make C=2' to enable checking of *all* source files, regardless > +# of whether they are re-compiled or not. > +# > +# See the file "Documentation/sparse.txt" for more details, including > +# where to get the "sparse" utility. > + > +ifeq ("$(origin C)", "command line") I thought that the origin check would not work in the sub-make, because the variables are part of the environment. But the sub-makes learn about commandline variables from the MAKEFLAGS variable, so it works as expected. Nice cleanup! Michal -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html