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Date: Mon, 3 Nov 2014 18:11:03 -0800 From: Greg KH <gregkh@...uxfoundation.org> To: Feng Kan <fkan@....com> Cc: patches@....com, linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org, mathias.nyman@...el.com, Bao Truong <btruong@....com> Subject: Re: [PATCH] usb:host:xhci-plat: 64-bit dma addressing support On Mon, Nov 03, 2014 at 05:59:28PM -0800, Feng Kan wrote: > Use dma_addr_t to support 64-bit plaforms, which access beyond 32 bit > address range. > > Signed-off-by: Bao Truong <btruong@....com> > Signed-off-by: Feng Kan <fkan@....com> > --- > drivers/usb/host/xhci-plat.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c > index 01d1862..8cf83f0 100644 > --- a/drivers/usb/host/xhci-plat.c > +++ b/drivers/usb/host/xhci-plat.c > @@ -97,13 +97,14 @@ static int xhci_plat_probe(struct platform_device *pdev) > } > > /* Initialize dma_mask and coherent_dma_mask to 32-bits */ > - ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); > + ret = dma_set_coherent_mask(&pdev->dev, > + DMA_BIT_MASK(sizeof(dma_addr_t)*8)); Is the comment still correct now? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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