ACK: [SRU][B/OEM][PATCH 0/2][v2]: SRU: xhci hang when resume from S3

[Hui Wang]

Acked-by: Hui Wang <hui.wang at canonical.com>

On 2018/11/28 下午11:29, Aaron Ma wrote:
> BugLink: https://bugs.launchpad.net/bugs/1805344
>
> Chnangelog:
> V2:
> Add BugLink.
>
> [Impact]
> On some thinkpad laptops, Realtek USB3.0 Card Reader [0bda:0328] reports wrong port status on
> Cannon lake PCH USB3.1 xHCI [8086:a36d] after resume from S3, then kernel hang.
>
> [Fix]
> Restrict the USB2 resume status check in USB2 roothub to fix hang issue.
>
> [Test Case]
> Suspend/resume 30 times OK.
>
> [Regression Potential]
> Low, upstream fix backported/cherry-picked.
>
> These 2 patches are already Cc: stable at vger.kernel.org, cosmic and future kernel will get these 2 patches.
>
> Aaron Ma (2):
>    usb: xhci: fix uninitialized completion when USB3 port got wrong
>      status
>    usb: xhci: fix timeout for transition from RExit to U0
>
>   drivers/usb/host/xhci-hub.c  | 6 +++---
>   drivers/usb/host/xhci-ring.c | 2 +-
>   drivers/usb/host/xhci.h      | 2 +-
>   3 files changed, 5 insertions(+), 5 deletions(-)
>