linux-kernel - Re: [PATCH] drivers: fpga: Specify HAS_IOMEM dependency for FPGA

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Message-ID: <CABVgOSmat7h9qqtEokwX69Aj-Q5AiAxU2G3yz_4ZMpmAArur7w@mail.gmail.com>
Date:   Fri, 20 Nov 2020 15:30:35 +0800
From:   David Gow <davidgow@...gle.com>
To:     Moritz Fischer <mdf@...nel.org>
Cc:     Tom Rix <trix@...hat.com>, linux-fpga@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-um <linux-um@...ts.infradead.org>,
        Brendan Higgins <brendanhiggins@...gle.com>
Subject: Re: [PATCH] drivers: fpga: Specify HAS_IOMEM dependency for FPGA_DFL

On Fri, Nov 20, 2020 at 2:27 PM Moritz Fischer <mdf@...nel.org> wrote:
>
> Hi David,
>
> On Thu, Nov 19, 2020 at 12:22:09AM -0800, David Gow wrote:
> > Because dfl.c uses the 'devm_ioremap', 'devm_iounmap',
> > 'devm_ioremap_resource', and 'devm_platform_ioremap_resource'
> > functions, it should depend on HAS_IOMEM.
> >
> > This fixes make allyesconfig under UML (ARCH=um), which doesn't provide
> > HAS_IOMEM.
> >
> > Signed-off-by: David Gow <davidgow@...gle.com>
> > ---
> >  drivers/fpga/Kconfig | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/drivers/fpga/Kconfig b/drivers/fpga/Kconfig
> > index 7cd5a29fc437..5645226ca3ce 100644
> > --- a/drivers/fpga/Kconfig
> > +++ b/drivers/fpga/Kconfig
> > @@ -142,6 +142,7 @@ config FPGA_DFL
> >       tristate "FPGA Device Feature List (DFL) support"
> >       select FPGA_BRIDGE
> >       select FPGA_REGION
> > +     depends on HAS_IOMEM
> >       help
> >         Device Feature List (DFL) defines a feature list structure that
> >         creates a linked list of feature headers within the MMIO space
> > --
> > 2.29.2.454.gaff20da3a2-goog
> >
> Do you think we can add a Fixes: tag for this?

Sure. I think it should be:

Fixes: 543be3d ("fpga: add device feature list support")

Let me know if you want me to re-send the patch with that included.

Cheers,
-- David