On Thu, Sep 27, 2018 at 11:08:14PM -0300, Leonardo Brás wrote: > Avoids building s390 drivers if 'make drivers/s390/' is called but > ARCH is not s390. > > Signed-off-by: Leonardo Brás <leobras.c@xxxxxxxxx> > --- > drivers/s390/Makefile | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-) > > diff --git a/drivers/s390/Makefile b/drivers/s390/Makefile > index a863b0462b43..0575f02dba45 100644 > --- a/drivers/s390/Makefile > +++ b/drivers/s390/Makefile > @@ -3,7 +3,7 @@ > # Makefile for the S/390 specific device drivers > # > > -obj-y += cio/ block/ char/ crypto/ net/ scsi/ virtio/ > - > -drivers-y += drivers/s390/built-in.a > - > +ifeq ($(ARCH),s390) > + obj-y += cio/ block/ char/ crypto/ net/ scsi/ virtio/ > + drivers-y += drivers/s390/built-in.a > +endif And then somebody wants to build with e.g. "make drivers/s390/cio/" and it still doesn't work. So _if_ this should be supported then it should work with all directory levels and all configuration options. Otherwise this is going to be a never ending story.