Re: [RFC 0/7] Fixing dma mask setting in various network drivers

[Russell King - ARM Linux <linux@arm.linux.org.uk>]

On Tue, Jun 11, 2013 at 11:12:30AM -0700, Jesse Brandeburg wrote:
> This is my proposed change to the intel drivers.  Comments?
> 
> +	if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
> +		pci_using_dac = true;
> +		/* coherent mask for the same size will always succeed if
> +		 * dma_set_mask does
> +		 */
> +		dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
> +	} else if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) {
> +		pci_using_dac = false;
> +		dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
> +	} else {
> +		dev_err(&pdev->dev, "%s: DMA configuration failed: %d\n",
> +			 __func__, err);
> +		err = -EIO;
> +		goto err_dma;
>  	}
> 

So, will you be going with this change rather than mine, which apparantly
Jeff queued?  Please let me know what you decide so I can keep my private
git tree in sync with what you've decided to avoid conflicting with
further dma-mask changes which I'm working on.

Thanks.

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