On Fri, 26 Sep 2014 10:19:43 -0400 , Jason Cooper <jason@xxxxxxxxxxxxxx> wrote: > Linus, > > On Fri, Sep 26, 2014 at 02:30:53PM +0200, Linus Walleij wrote: > > On Tue, Apr 1, 2014 at 12:15 PM, Grant Likely <grant.likely@xxxxxxxxxxxx> wrote: > > > > > Here are the dt changes I've got queued up for v3.15. The full > > > description is below in the tag. Please pull. > > (...) > > > Jason Cooper (1): > > > kbuild: dtbs_install: new make target > > Exact patch is: > > f4d4ffc03efc kbuild: dtbs_install: new make target > > > After this patch a while back I have observed the following behaviour > > of the kernel build: > > > > make zImage > > make zImage > > -> incremental build, just relink > > > > make zImage > > make dtbs > > make zImage > > -> The whole kernel gets rebuilt > > > > So now if I happen to recompile my device trees, I suddenly want > > the entire zImage to be rebuilt to? It's by definition not changes that > > affect the kernel build :-( > > > > I noticed this because my build scripts calls make dtbs && make zImage, > > and started to rebuild absolutely everything all the time. > > > > Do you think this can be fixed? It's quite simple to reproduce... > > Does the attached fix your problem? > > thx, > > Jason. > > ----------->8------------------------------------------ > diff --git a/arch/arm/Makefile b/arch/arm/Makefile > index 0ce9d0f71f2a..a88b13af58d2 100644 > --- a/arch/arm/Makefile > +++ b/arch/arm/Makefile > @@ -313,7 +313,9 @@ $(INSTALL_TARGETS): > $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@ > > PHONY += dtbs dtbs_install > -dtbs dtbs_install: prepare scripts > +dtbs: scripts > + $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $@ > +dtbs_install: prepare scripts > $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $@ > > # We use MRPROPER_FILES and CLEAN_FILES now Is this the right fix though? It seems that it would fix the problem for the dtbs target, but would still cause a kernel rebuild for dtbs_install. Why does dtbs_install need to depend on the 'prepare' target? g. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
