linux-kernel - Re: [PATCH 1/1] xhci: Recognize USB 3.0 devices as superspeed at powerup

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:	Sat, 25 Aug 2012 15:12:14 +0800
From:	Andiry Xu <andiry@...il.com>
To:	manoj.iyer@...onical.com
Cc:	linux-kernel@...r.kernel.org, sarah.a.sharp@...ux.intel.com,
	gregkh@...uxfoundation.org, linux-usb@...r.kernel.org
Subject: Re: [PATCH 1/1] xhci: Recognize USB 3.0 devices as superspeed at powerup

On Thu, Aug 23, 2012 at 12:53 AM,  <manoj.iyer@...onical.com> wrote:
> From: Manoj Iyer <manoj.iyer@...onical.com>
>
> On Intel Panther Point chipset USB 3.0 devices show up as
> high-speed devices on powerup, but after an s3 cycle they are
> correctly recognized as SuperSpeed. At powerup switch the port
> to xHCI so that USB 3.0 devices are correctly recognized.
>
> BugLink: http://bugs.launchpad.net/bugs/1000424
>
> Signed-off-by: Manoj Iyer <manoj.iyer@...onical.com>

This one looks OK to me.

Thanks,
Andiry

> ---
>  drivers/usb/host/pci-quirks.c |    3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
> index c5e9e4a..486e812 100644
> --- a/drivers/usb/host/pci-quirks.c
> +++ b/drivers/usb/host/pci-quirks.c
> @@ -870,9 +870,10 @@ static void __devinit quirk_usb_handoff_xhci(struct pci_dev *pdev)
>         /* Disable any BIOS SMIs and clear all SMI events*/
>         writel(val, base + ext_cap_offset + XHCI_LEGACY_CONTROL_OFFSET);
>
> +hc_init:
>         if (usb_is_intel_switchable_xhci(pdev))
>                 usb_enable_xhci_ports(pdev);
> -hc_init:
> +
>         op_reg_base = base + XHCI_HC_LENGTH(readl(base));
>
>         /* Wait for the host controller to be ready before writing any
> --
> 1.7.9.5
>
--
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/