linux-kernel - Re: [PATCH -mm 02/11] PCI: add device_dma

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Date:	Wed, 24 Oct 2007 22:41:12 +0900
From:	FUJITA Tomonori <tomof@....org>
To:	jeff@...zik.org
Cc:	tomof@....org, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
	greg@...ah.com, James.Bottomley@...elEye.com,
	fujita.tomonori@....ntt.co.jp
Subject: Re: [PATCH -mm 02/11] PCI: add device_dma_parameters support

On Wed, 24 Oct 2007 07:34:07 -0400
Jeff Garzik <jeff@...zik.org> wrote:

> FUJITA Tomonori wrote:
> > index 463a5a9..54edea2 100644
> > --- a/drivers/pci/probe.c
> > +++ b/drivers/pci/probe.c
> > @@ -985,8 +985,11 @@ void pci_device_add(struct pci_dev *dev, struct pci_bus *bus)
> >  
> >  	set_dev_node(&dev->dev, pcibus_to_node(bus));
> >  	dev->dev.dma_mask = &dev->dma_mask;
> > +	dev->dev.dma_parms = &dev->dma_parms;
> >  	dev->dev.coherent_dma_mask = 0xffffffffull;
> >  
> > +	pci_set_dma_max_seg_size(dev, 65536);
> 
> this should check the return value of pci_set_dma_max_seg_size(), and do 
> something useful.
> 
> ACK everything else

Thanks.

I wasn't sure about what to do. Should pci_device_add fail in case of
pci_set_dma_max_seg_size failure or just should we print warning?
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