[PATCH v3 35/36] net/wan: make FSL_UCC_HDLC explicitly depend on PPC32

[Li Yang]

On Tue, Nov 5, 2019 at 4:47 PM Rasmus Villemoes
<linux at rasmusvillemoes.dk> wrote:
>
> On 04/11/2019 21.56, Li Yang wrote:
>
> >> No, this patch cannot be dropped. Please see the kbuild complaints for
> >> v2,23/23 about use of IS_ERR_VALUE on not-sizeof(long) entities. I see
> >> kbuild has complained about the same thing for v3 since apparently the
> >> same thing appears in ucc_slow.c. So I'll fix that.
> >
> > When I made this comment I didn't notice you have removed all the
> > architectural dependencies for CONFIG_QUICC_ENGINE.  If the
> > QUICC_ENGINE is only buidable on powerpc, arm and arm64, this change
> > will not be needed.
> >
> > BTW, I'm not sure if it is a good idea to make it selectable on these
> > unrelavent architectures.  Real architectural dependencies and
> > COMPILE_TEST dependency will be better if we really want to test the
> > buildability on other platforms.
>
> Well, making QUICC_ENGINE depend on PPC32 || ARM would certainly make
> things easier for me. Once you include ARM64 or any other 64 bit
> architecture the buildbot complaints start rolling in from the
> IS_ERR_VALUEs. And ARM64 should be supported as well, so there really
> isn't much difference between dropping all arch restrictions and listing
> the relevant archs in the Kconfig dependencies.

I agree that it will be good to have the driver compile for all
architectures for compile test.  But list all the relevant
architectures and CONFIG_COMPILE_TEST as dependencies will make it not
really selected for these irrelevant architectures in real system.

Regards,
Leo