Re: [PATCH] PCI: Workaround missing pci_set_master in pci drivers

[Bjorn Helgaas]

On Thu, Oct 3, 2013 at 5:35 PM, Yinghai Lu <yinghai@xxxxxxxxxx> wrote:
> On Thu, Oct 3, 2013 at 3:06 PM, Bjorn Helgaas <bhelgaas@xxxxxxxxxx> wrote:
>> On Sat, Sep 28, 2013 at 01:13:07PM -0700, Yinghai Lu wrote:
>>> @@ -1156,8 +1156,14 @@ static void pci_enable_bridge(struct pci
>>>
>>>       pci_enable_bridge(dev->bus->self);
>>>
>>> -     if (pci_is_enabled(dev))
>>> +     if (pci_is_enabled(dev)) {
>>> +             if (!dev->is_busmaster) {
>>> +                     dev_warn(&dev->dev, "driver skip pci_set_master, fix it!\n");
>>
>> I know this is already in Linus' tree, but if we're going to enable
>> bus mastering here, what's the point of the warning?  If somebody
>> fixes the driver by adding a pci_set_master() call there, does that
>> improve something?
>
> Help us to catch other offender and fix them.

What is improved by doing it in the driver instead of here?
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/