On Tue, Nov 27, 2012 at 02:32:11PM +0800, Daniel J Blueman wrote:
> Fix locating sibling memory controller PCI functions by using the
> correct PCI domain.
>
> v7: Refactor patches grouping changes
>
> Signed-off-by: Daniel J Blueman <dan...@numascale-asia.com>
> ---
> drivers/edac/amd64_edac.c | 40 +++++++++++++++++++++-------------------
> 1 file changed, 21 insertions(+), 19 deletions(-)
>
> diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
> index 60e93fa..62b7b17 100644
> --- a/drivers/edac/amd64_edac.c
> +++ b/drivers/edac/amd64_edac.c
> @@ -983,6 +983,24 @@ static u64 get_error_address(struct mce *m)
> return addr;
> }
>
> +static struct pci_dev *pci_get_related_function(unsigned int vendor,
> + unsigned int device,
> + struct pci_dev *related)
> +{
> + struct pci_dev *dev = NULL;
> +
> + dev = pci_get_device(vendor, device, dev);
> + while (dev) {
> + if (pci_domain_nr(dev->bus) == pci_domain_nr(related->bus) &&
> + (dev->bus->number == related->bus->number) &&
> + (PCI_SLOT(dev->devfn) == PCI_SLOT(related->devfn)))
> + break;
> + dev = pci_get_device(vendor, device, dev);
> + }
This loop looks strange and I'm wondering, wouldn't it be more
straightforward to simply do:
while (dev = pci_get_device(vendor, device, dev)) {
if (...)
break;
}
return dev;
I realize the original code does this pci_get_device twice but it is
crap IMO.
Thanks.
--
Regards/Gruss,
Boris.
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