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Date:   Thu, 3 May 2018 14:21:47 +0200
From:   Christoph Hellwig <hch@lst.de>
To:     Thierry Reding <thierry.reding@gmail.com>
Cc:     Nipun Gupta <nipun.gupta@nxp.com>, robin.murphy@arm.com,
        hch@lst.de, linux@armlinux.org.uk, gregkh@linuxfoundation.org,
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Subject: Re: [PATCH v4 1/2] dma-mapping: move dma configuration to bus
        infrastructure
Message-ID: <20180503122147.GB18590@lst.de>
References: <1520868292-2479-1-git-send-email-nipun.gupta@nxp.com> <1524883919-29484-1-git-send-email-nipun.gupta@nxp.com> <20180430104124.GE2476@ulmo>
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On Mon, Apr 30, 2018 at 12:41:24PM +0200, Thierry Reding wrote:
> On Sat, Apr 28, 2018 at 08:21:58AM +0530, Nipun Gupta wrote:
> [...]
> > diff --git a/drivers/gpu/host1x/bus.c b/drivers/gpu/host1x/bus.c
> > index 88a3558..a9ec99d 100644
> > --- a/drivers/gpu/host1x/bus.c
> > +++ b/drivers/gpu/host1x/bus.c
> > @@ -314,6 +314,13 @@ static int host1x_device_match(struct device *dev, struct device_driver *drv)
> >  	return strcmp(dev_name(dev), drv->name) == 0;
> >  }
> >  
> > +static int host1x_dma_configure(struct device *dev)
> > +{
> > +	if (dev->of_node)
> > +		return of_dma_configure(dev, dev->of_node);
> 
> The conditional here is somewhat pointless since the of_node should
> always be set. If it weren't it should be considered a bug and this
> function welcome to crash to make that very obvious.

Agreed.  Please remove the check for the resend.