[v4] ata: Remove depends on HAS_DMA in case of platform dependency

Remove dependencies on HAS_DMA where a Kconfig symbol depends on another
symbol that implies HAS_DMA, and, optionally, on "|| COMPILE_TEST".
In most cases this other symbol is an architecture or platform specific
symbol, or PCI.

Generic symbols and drivers without platform dependencies keep their
dependencies on HAS_DMA, to prevent compiling subsystems or drivers that
cannot work anyway.

This simplifies the dependencies, and allows to improve compile-testing.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Acked-by: Robin Murphy <robin.murphy@arm.com>
---
v4:
  - Rebase to v4.18-rc1 (applies to next-20180622, too),

v3:
  - Rebase to v4.17-rc1,

v2:
  - Add Reviewed-by, Acked-by,
  - Drop RFC state,
  - Split per subsystem.
---
 drivers/ata/Kconfig | 2 --
 1 file changed, 2 deletions(-)

On Fri, Jun 22, 2018 at 01:03:07PM +0200, Geert Uytterhoeven wrote:
> Remove dependencies on HAS_DMA where a Kconfig symbol depends on another
> symbol that implies HAS_DMA, and, optionally, on "|| COMPILE_TEST".
> In most cases this other symbol is an architecture or platform specific
> symbol, or PCI.
> 
> Generic symbols and drivers without platform dependencies keep their
> dependencies on HAS_DMA, to prevent compiling subsystems or drivers that
> cannot work anyway.
> 
> This simplifies the dependencies, and allows to improve compile-testing.
> 
> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
> Reviewed-by: Mark Brown <broonie@kernel.org>
> Acked-by: Robin Murphy <robin.murphy@arm.com>

This looks fine to me but how do you wanna route it?  Should I apply
it to for-4.18-fixes or should it go with arch changes in some other
tree?

Thanks.

Hi Tejun,

On Mon, Jul 2, 2018 at 6:12 PM Tejun Heo <tj@kernel.org> wrote:
> On Fri, Jun 22, 2018 at 01:03:07PM +0200, Geert Uytterhoeven wrote:
> > Remove dependencies on HAS_DMA where a Kconfig symbol depends on another
> > symbol that implies HAS_DMA, and, optionally, on "|| COMPILE_TEST".
> > In most cases this other symbol is an architecture or platform specific
> > symbol, or PCI.
> >
> > Generic symbols and drivers without platform dependencies keep their
> > dependencies on HAS_DMA, to prevent compiling subsystems or drivers that
> > cannot work anyway.
> >
> > This simplifies the dependencies, and allows to improve compile-testing.
> >
> > Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
> > Reviewed-by: Mark Brown <broonie@kernel.org>
> > Acked-by: Robin Murphy <robin.murphy@arm.com>
>
> This looks fine to me but how do you wanna route it?  Should I apply
> it to for-4.18-fixes or should it go with arch changes in some other
> tree?

Please queue it in the ata tree. There are no related arch changes.
Thanks!

Gr{oetje,eeting}s,

                        Geert

On Fri, Jun 22, 2018 at 01:03:07PM +0200, Geert Uytterhoeven wrote:
> Remove dependencies on HAS_DMA where a Kconfig symbol depends on another
> symbol that implies HAS_DMA, and, optionally, on "|| COMPILE_TEST".
> In most cases this other symbol is an architecture or platform specific
> symbol, or PCI.
> 
> Generic symbols and drivers without platform dependencies keep their
> dependencies on HAS_DMA, to prevent compiling subsystems or drivers that
> cannot work anyway.
> 
> This simplifies the dependencies, and allows to improve compile-testing.
> 
> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
> Reviewed-by: Mark Brown <broonie@kernel.org>
> Acked-by: Robin Murphy <robin.murphy@arm.com>

Applied to libata/for-4.18-fixes.

Thanks.