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Message-ID: <6423213.ATyOvMNh1o@vostro.rjw.lan> Date: Sat, 12 Jan 2013 22:37:09 +0100 From: "Rafael J. Wysocki" <rjw@...k.pl> To: Yinghai Lu <yinghai@...nel.org> Cc: Bjorn Helgaas <bhelgaas@...gle.com>, Len Brown <lenb@...nel.org>, Taku Izumi <izumi.taku@...fujitsu.com>, Jiang Liu <jiang.liu@...wei.com>, linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org Subject: Re: [PATCH v8 02/22] PCI: Add root bus children dev's res to fail list On Friday, January 11, 2013 02:40:29 PM Yinghai Lu wrote: > We can stop trying according to try number now and do not need to use > root_bus checking as stop sign anymore. > > In extreme case we could need to reallocate resource for device just > under root bus. Well, the above says that we _can_ do the change, but it doesn't explain why it is needed. So what's the reason why we need to do that? Rafael > Signed-off-by: Yinghai Lu <yinghai@...nel.org> > --- > drivers/pci/setup-bus.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c > index 6d3591d..7e8739e 100644 > --- a/drivers/pci/setup-bus.c > +++ b/drivers/pci/setup-bus.c > @@ -283,7 +283,7 @@ static void assign_requested_resources_sorted(struct list_head *head, > idx = res - &dev_res->dev->resource[0]; > if (resource_size(res) && > pci_assign_resource(dev_res->dev, idx)) { > - if (fail_head && !pci_is_root_bus(dev_res->dev->bus)) { > + if (fail_head) { > /* > * if the failed res is for ROM BAR, and it will > * be enabled later, don't add it to the list > -- I speak only for myself. Rafael J. Wysocki, Intel Open Source Technology Center. -- 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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