On Tue, 2013-06-11 at 00:12 +0100, Russell King wrote:
> The fallback to 32-bit DMA mask is rather odd:
> err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
> if (!err) {
> err = dma_set_coherent_mask(&pdev->dev,
> DMA_BIT_MASK(64));
> if (!err)
> pci_using_dac = 1;
> } else {
> err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
> if (err) {
> err = dma_set_coherent_mask(&pdev->dev,
> DMA_BIT_MASK(32));
> if (err) {
> dev_err(&pdev->dev, "No usable DMA "
> "configuration, aborting\n");
> goto err_dma;
> }
> }
> }
> This means we only set the coherent DMA mask in the fallback path if
> the DMA mask set failed, which is silly. This fixes it to set the
> coherent DMA mask only if dma_set_mask() succeeded, and to error out
> if either fails.
>
> Signed-off-by: Russell King <[email protected]>
> ---
> drivers/net/ethernet/intel/igbvf/netdev.c | 11 +++++------
> 1 files changed, 5 insertions(+), 6 deletions(-) Thanks Russell, I will add this to my queue.
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