On Wed, 29 Jul 2020, Mark D Rustad wrote:
> at 12:58 AM, Lee Jones <lee.jones@xxxxxxxxxx> wrote:
>
> > If you do:
> >
> > do {
> > int pos;
> >
> > pos = pci_find_next_ext_capability(pdev, pos, PCI_EXT_CAP_ID_DVSEC);
> > if (!pos)
> > break;
> >
> > Then you can invoke pci_find_next_ext_capability() once, no?
>
> Part of your suggestion here won't work, because pos needs to be initialized
> to 0 the first time. As such it needs to be declared and initialized outside
> the loop. Other than that it may be ok.
Right. It was just an example I quickly hacked out.
Feel free to move the variable, or make it static, etc.
--
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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