linux-kernel - Re: Linux Kernel Regression: HAPS quirk breaks PCIe on i.MX6QP

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Message-ID: <20190201085906.tqp6ysbb65n7jfkv@wunner.de>
Date:   Fri, 1 Feb 2019 09:59:06 +0100
From:   Lukas Wunner <lukas@...ner.de>
To:     Thinh Nguyen <thinh.nguyen@...opsys.com>
Cc:     Bjorn Helgaas <bhelgaas@...gle.com>,
        "Lukas F. Hartmann" <lukas@...mn.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Lucas Stach <l.stach@...gutronix.de>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        John Youn <john.youn@...opsys.com>
Subject: Re: Linux Kernel Regression: HAPS quirk breaks PCIe on i.MX6QP

On Thu, Jan 31, 2019 at 11:46:23PM +0000, Thinh Nguyen wrote:
> --- a/drivers/pci/quirks.c
> +++ b/drivers/pci/quirks.c
> @@ -629,6 +629,9 @@ static void quirk_synopsys_haps(struct pci_dev *pdev)
>  {
>         u32 class = pdev->class;
>  
> +       if (class != PCI_CLASS_SERIAL_USB_XHCI)
> +               return;
> +
>         switch (pdev->device) {
>         case PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3:
>         case PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI:

Please use DECLARE_PCI_FIXUP_CLASS_HEADER() instead.

Thanks,

Lukas