Re: [PATCH 1/8] IB/cxgb4: Fix formatting of physical address

Ben Hutchings
2013-10-27T22:02:13Z

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On Sun, 2013-10-27 at 14:58 -0700, Joe Perches wrote:
> On Sun, 2013-10-27 at 21:50 +0000, Ben Hutchings wrote:
> > Physical addresses may be wider than virtual addresses (e.g. on i386
> > with PAE) and must not be formatted with %p.
>
> %pa works. %pa also prefixes with 0x.

Only as long as pci_resource_start() happens to be an lvalue. I'd
rather not introduce that assumption.

Ben.

> > diff --git a/drivers/infiniband/hw/cxgb4/device.c b/drivers/infiniband/hw/cxgb4/device.c
> []
> > @@ -602,10 +602,10 @@ static int c4iw_rdev_open(struct c4iw_rdev *rdev)
> > rdev->lldi.vr->qp.size,
> > rdev->lldi.vr->cq.start,
> > rdev->lldi.vr->cq.size);
> > - PDBG("udb len 0x%x udb base %p db_reg %p gts_reg %p qpshift %lu "
> > + PDBG("udb len 0x%x udb base %llx db_reg %p gts_reg %p qpshift %lu "
> > "qpmask 0x%x cqshift %lu cqmask 0x%x\n",
> > (unsigned)pci_resource_len(rdev->lldi.pdev, 2),
> > - (void *)(unsigned long)pci_resource_start(rdev->lldi.pdev, 2),
> > + (u64)pci_resource_start(rdev->lldi.pdev, 2),
> > rdev->lldi.db_reg,
> > rdev->lldi.gts_reg,
> > rdev->qpshift, rdev->qpmask,
> >
> >
>
>
>

--
Ben Hutchings
If at first you don't succeed, you're doing about average.

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