diff mbox series

[v3,5/7] drivers: s390: Avoids building drivers if ARCH is not s390.

Message ID 20180928020816.11251-6-leobras.c@gmail.com (mailing list archive)
State Not Applicable
Headers show
Series Remove errors building drivers/DRIVERNAME | expand

Commit Message

Leonardo Brás Sept. 28, 2018, 2:08 a.m. UTC
Avoids building s390 drivers if 'make drivers/s390/' is called but
ARCH is not s390.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/s390/Makefile | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

Comments

Heiko Carstens Oct. 1, 2018, 12:46 p.m. UTC | #1
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@gmail.com>
> ---
>  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.
Leonardo Brás Oct. 4, 2018, 1 a.m. UTC | #2
On Mon, Oct 1, 2018 at 9:46 AM Heiko Carstens <heiko.carstens@de.ibm.com> wrote:
>
> 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@gmail.com>
> > ---
> >  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.
>


It makes sense.
I proposed this change to help me solving a problem described here
(https://lkml.org/lkml/2018/10/3/707), and for this it was enough if it didn't
build when "make drivers/s390/" was called.

Sorry I didn't send the e-mail with the reason earlier.

For solving my problem it was not necessary, but if you think it's interesting,
I could refactor all drivers/s390 Makefiles to make them all build only if
we are dealing with the s390 architecture.

What do you think?

Thanks for the reply,

Leonardo Bras
diff mbox series

Patch

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