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Message-ID: <CAL_JsqLep6DDecq-HonMd8HF0hD7xGB_ucbZrYUYJSx8t28fFQ@mail.gmail.com>
Date: Wed, 20 Mar 2024 11:30:02 -0500
From: Rob Herring <robh@...nel.org>
To: Dan Carpenter <dan.carpenter@...aro.org>
Cc: Simon Horman <horms@...nel.org>, Claus Hansen Ries <chr@...ma.com>, netdev@...r.kernel.org, 
	"David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Michal Simek <michal.simek@....com>, 
	Alex Elder <elder@...aro.org>, Wei Fang <wei.fang@....com>, 
	Uwe Kleine-König <u.kleine-koenig@...gutronix.de>, 
	Wang Hai <wanghai38@...wei.com>
Subject: Re: [PATCH] net: ll_temac: platform_get_resource replaced by wrong function

On Wed, Mar 20, 2024 at 10:13 AM Dan Carpenter <dan.carpenter@...aro.org> wrote:
>
> On Wed, Mar 20, 2024 at 11:54:33AM +0000, Simon Horman wrote:
> > > ---
> > >  drivers/net/ethernet/xilinx/ll_temac_main.c | 2 +-
> > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > diff --git a/drivers/net/ethernet/xilinx/ll_temac_main.c b/drivers/net/ethernet/xilinx/ll_temac_main.c
> > > index 9df39cf8b097..1072e2210aed 100644
> > > --- a/drivers/net/ethernet/xilinx/ll_temac_main.c
> > > +++ b/drivers/net/ethernet/xilinx/ll_temac_main.c
> > > @@ -1443,7 +1443,7 @@ static int temac_probe(struct platform_device *pdev)
> > >         }
> > >           /* map device registers */
> > > -       lp->regs = devm_platform_ioremap_resource_byname(pdev, 0);
> > > +       lp->regs = devm_platform_ioremap_resource(pdev, 0);
>
> This should have triggered a Sparse warning "warning: Using plain
> integer as NULL pointer" but the problem is that this file does not have
> correct endian annotations and after a certain number of warnings Sparse
> gives up.

It did[1] along with linker errors on s390. Just no one was CC'ed
other than the author. I guess 0-day gave up after a while.

Rob

[1] https://lore.kernel.org/all/202008070052.yH1Em3c1%25lkp@intel.com/

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