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Date:   Fri, 20 Nov 2020 15:40:13 +0800
From:   Xu Yilun <yilun.xu@...el.com>
To:     David Gow <davidgow@...gle.com>
Cc:     Moritz Fischer <mdf@...nel.org>, 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 03:30:35PM +0800, David Gow wrote:
> 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")

I think it should be:

Fixes: 89eb35e810a8 ("fpga: dfl: map feature mmio resources in their own feature drivers")

Thanks,
Yilun

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

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