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Date:   Wed, 2 Aug 2023 12:06:44 +0200
From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     Yinbo Zhu <zhuyinbo@loongson.cn>
Cc:     Mathias Nyman <mathias.nyman@intel.com>, linux-usb@vger.kernel.org,
        linux-kernel@vger.kernel.org, Jianmin Lv <lvjianmin@loongson.cn>,
        wanghongliang@loongson.cn, Liu Peibao <liupeibao@loongson.cn>,
        loongson-kernel@lists.loongnix.cn
Subject: Re: [PATCH] usb: xhci-plat: fix usb disconnect issue after s4
Message-ID: <2023080222-sizable-gauntlet-e658@gregkh>
References: <20230802090642.1642-1-zhuyinbo@loongson.cn>
 <2023080243-matted-abnormal-0fb0@gregkh>
 <4ee866a1-39a4-3b88-20f6-108e605ab00e@loongson.cn>
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On Wed, Aug 02, 2023 at 05:58:17PM +0800, Yinbo Zhu wrote:
> 
> 
> 在 2023/8/2 下午5:39, Greg Kroah-Hartman 写道:
> > On Wed, Aug 02, 2023 at 05:06:42PM +0800, Yinbo Zhu wrote:
> > > The xhci retaining bogus hardware states cause usb disconnect devices
> > > connected before hibernation(s4) and refer to the commit '547d55fa83
> > > ("usb: ohci-platform: fix usb disconnect issue after s4")' which set
> > > flag "hibernated" as true when resume-from-hibernation and that the
> > > drivers will reset the hardware to get rid of any existing state and
> > > make sure resume from hibernation re-enumerates everything for xhci.
> > > 
> > > Signed-off-by: Yinbo Zhu <zhuyinbo@loongson.cn>
> > > ---
> > >   drivers/usb/host/xhci-plat.c | 21 ++++++++++++++++++---
> > >   1 file changed, 18 insertions(+), 3 deletions(-)
> > 
> > What commit id does this fix?
> > 
> > Should it go to stable kernels?
> 
> 
> Sorry, perhaps it has been rebased, that tree was mainline tree next
> branch, you can find this commit id "f3d478858bec4"

Please fix this up and add a proper Fixes: line and if needed a cc:
stable line.

thanks,

greg k-h