Re: [PATCH v6 4/4] PCI: Introduce the disable_acs_redir parameter

[Logan Gunthorpe <logang@deltatee.com>]

On 16/07/18 11:15 AM, Alex Williamson wrote:
>> +	pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ACS);
>> +	if (!pos) {
>> +		pci_warn(dev, "cannot disable ACS redirect for this hardware as it does not have ACS capabilities\n");
>> +		return;
>> +	}
>> +
>> +	if (!pci_dev_specific_disable_acs_redir(dev))
>> +		return;
> 
> Shouldn't this come before the above ACS capability test?  The PCH
> quirk without a disable_acs_redir callback will fall out with the
> pci_warn() above either way, but this ordering precludes that a quirk
> could be written for that device since it doesn't have an ACS
> capability.  Otherwise the series looks ok to me.  Thanks,

Yup, nice catch. I'll respin a v7 shortly.

Thanks,

Logan