Re: [PATCH V3 1/2] PCI: Add Extended Tags quirk for Broadcom HT2100 Root Port

From: Sinan Kaya
Date: Tue Jul 11 2017 - 16:16:51 EST

On 7/11/2017 3:58 PM, Bjorn Helgaas wrote:
> I'm trying to avoid pci_walk_bus() because it's such a minefield as
> far as hot-added devices. I don't think we can avoid one in the
> quirk, to turn off extended tags for any devices we've already found,
> but I think we *can* avoid adding more i

Jike Song asked what if you attach a PCIe endpoint that has an extended
tags quirk to think about the reverse direction. That's why, I was walking
the entire bus.

We can maybe hold onto putting such a generic code until such a device
with quirk actually shows up.

I'll pull your suggestion into a patch, give it a try and then post the
next version.

Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.