2021-01-27 20:59:17

by David Gow

[permalink] [raw]
Subject: [PATCH] soc: litex: Properly depend on HAS_IOMEM

The LiteX SOC controller driver makes use of IOMEM functions like
devm_platform_ioremap_resource(), which are only available if
CONFIG_HAS_IOMEM is defined.

This causes the driver not to be enable under make ARCH=um allyesconfig,
even though it won't build.

By adding a dependency on HAS_IOMEM, the driver will not be enabled on
architectures which don't support it.

Fixes: 22447a99c97e ("drivers/soc/litex: add LiteX SoC Controller driver")
Signed-off-by: David Gow <[email protected]>
---
drivers/soc/litex/Kconfig | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/soc/litex/Kconfig b/drivers/soc/litex/Kconfig
index 7c6b009b6f6c..7a7c38282e11 100644
--- a/drivers/soc/litex/Kconfig
+++ b/drivers/soc/litex/Kconfig
@@ -8,6 +8,7 @@ config LITEX
config LITEX_SOC_CONTROLLER
tristate "Enable LiteX SoC Controller driver"
depends on OF || COMPILE_TEST
+ depends on HAS_IOMEM
select LITEX
help
This option enables the SoC Controller Driver which verifies
--
2.30.0.280.ga3ce27912f-goog


2021-01-27 23:56:58

by Stafford Horne

[permalink] [raw]
Subject: Re: [PATCH] soc: litex: Properly depend on HAS_IOMEM

On Tue, Jan 26, 2021 at 07:36:04PM -0800, David Gow wrote:
> The LiteX SOC controller driver makes use of IOMEM functions like
> devm_platform_ioremap_resource(), which are only available if
> CONFIG_HAS_IOMEM is defined.
>
> This causes the driver not to be enable under make ARCH=um allyesconfig,
> even though it won't build.

Is this wording correct? I suspect it causes to driver TO BE enabled.

>
> By adding a dependency on HAS_IOMEM, the driver will not be enabled on
> architectures which don't support it.
>
> Fixes: 22447a99c97e ("drivers/soc/litex: add LiteX SoC Controller driver")
> Signed-off-by: David Gow <[email protected]>a

This looks ok to me. I can queue it for 5.11 fixes, if you can help with the
wording above.

-Stafford

> ---
> drivers/soc/litex/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/soc/litex/Kconfig b/drivers/soc/litex/Kconfig
> index 7c6b009b6f6c..7a7c38282e11 100644
> --- a/drivers/soc/litex/Kconfig
> +++ b/drivers/soc/litex/Kconfig
> @@ -8,6 +8,7 @@ config LITEX
> config LITEX_SOC_CONTROLLER
> tristate "Enable LiteX SoC Controller driver"
> depends on OF || COMPILE_TEST
> + depends on HAS_IOMEM
> select LITEX
> help
> This option enables the SoC Controller Driver which verifies
> --
> 2.30.0.280.ga3ce27912f-goog
>

2021-01-28 00:08:58

by David Gow

[permalink] [raw]
Subject: Re: [PATCH] soc: litex: Properly depend on HAS_IOMEM

On Wed, Jan 27, 2021 at 8:27 PM Stafford Horne <[email protected]> wrote:
>
> On Tue, Jan 26, 2021 at 07:36:04PM -0800, David Gow wrote:
> > The LiteX SOC controller driver makes use of IOMEM functions like
> > devm_platform_ioremap_resource(), which are only available if
> > CONFIG_HAS_IOMEM is defined.
> >
> > This causes the driver not to be enable under make ARCH=um allyesconfig,
> > even though it won't build.
>
> Is this wording correct? I suspect it causes to driver TO BE enabled.
>

Whoops! Yes: that should be "causes the driver to be enabled" -- sorry
about that.

Let me know if you want me to re-send it with the fixed wording, or if
you just want to fix that yourself.

> >
> > By adding a dependency on HAS_IOMEM, the driver will not be enabled on
> > architectures which don't support it.
> >
> > Fixes: 22447a99c97e ("drivers/soc/litex: add LiteX SoC Controller driver")
> > Signed-off-by: David Gow <[email protected]>a
>
> This looks ok to me. I can queue it for 5.11 fixes, if you can help with the
> wording above.

Thanks: that'd be great!

Cheers,
-- David

>
> -Stafford
>
> > ---
> > drivers/soc/litex/Kconfig | 1 +
> > 1 file changed, 1 insertion(+)
> >
> > diff --git a/drivers/soc/litex/Kconfig b/drivers/soc/litex/Kconfig
> > index 7c6b009b6f6c..7a7c38282e11 100644
> > --- a/drivers/soc/litex/Kconfig
> > +++ b/drivers/soc/litex/Kconfig
> > @@ -8,6 +8,7 @@ config LITEX
> > config LITEX_SOC_CONTROLLER
> > tristate "Enable LiteX SoC Controller driver"
> > depends on OF || COMPILE_TEST
> > + depends on HAS_IOMEM
> > select LITEX
> > help
> > This option enables the SoC Controller Driver which verifies
> > --
> > 2.30.0.280.ga3ce27912f-goog
> >

2021-01-28 00:47:54

by Stafford Horne

[permalink] [raw]
Subject: Re: [PATCH] soc: litex: Properly depend on HAS_IOMEM

On Thu, Jan 28, 2021 at 12:49:56AM +0800, David Gow wrote:
> On Wed, Jan 27, 2021 at 8:27 PM Stafford Horne <[email protected]> wrote:
> >
> > On Tue, Jan 26, 2021 at 07:36:04PM -0800, David Gow wrote:
> > > The LiteX SOC controller driver makes use of IOMEM functions like
> > > devm_platform_ioremap_resource(), which are only available if
> > > CONFIG_HAS_IOMEM is defined.
> > >
> > > This causes the driver not to be enable under make ARCH=um allyesconfig,
> > > even though it won't build.
> >
> > Is this wording correct? I suspect it causes to driver TO BE enabled.
> >
>
> Whoops! Yes: that should be "causes the driver to be enabled" -- sorry
> about that.
>
> Let me know if you want me to re-send it with the fixed wording, or if
> you just want to fix that yourself.

OK, I'll fix it.

> > >
> > > By adding a dependency on HAS_IOMEM, the driver will not be enabled on
> > > architectures which don't support it.
> > >
> > > Fixes: 22447a99c97e ("drivers/soc/litex: add LiteX SoC Controller driver")
> > > Signed-off-by: David Gow <[email protected]>a
> >
> > This looks ok to me. I can queue it for 5.11 fixes, if you can help with the
> > wording above.
>
> Thanks: that'd be great!

No problem.

-Stafford