> -Original Mail-
> Sender : Alan Stern
> Time : 2020/7/24 0:39
> Receiver : Alex Williamson
> CC : Weitao Wang(BJ-RD) ; Greg KH
> ; WeitaoWang-oc
> ; mathias.ny...@linux.intel.com;
> ulf.hans...@linaro.org; vk...@kernel.org; hsleste...@gmail.com;
> linux-...@vger.kernel.org; linux-kerne
On Fri, 24 Jul 2020 19:17:49 + Alex wrote:
> On Fri, 24 Jul 2020 12:57:49 +
> WeitaoWang-oc wrote:
>
> > On Thu, 23 Jul 2020 12:38:21 -0400, Alan wrote:
> > > On Thu, Jul 23, 2020 at 10:17:35AM -0600, Alex Williamson wrote:
> > > > The IOMMU grouping restriction does solve the hardware i
On Thu, 23 Jul 2020 12:38:21 -0400, Alan wrote:
> On Thu, Jul 23, 2020 at 10:17:35AM -0600, Alex Williamson wrote:
> > The IOMMU grouping restriction does solve the hardware issue, so long
> > as one driver doesn't blindly assume the driver private data for
> > another device and modify it.
>
> C
On Thu, Jul 23, 2020 at 08:36:25AM +, WeitaoWang-oc wrote:
>
> On Thu,23 July 2020 04:18:00 + Alex wrote:
> > On Wed, 22 Jul 2020 19:57:48 +0800
> > WeitaoWangoc wrote:
> >
> > > drivers/usb/core/hcd-pci.c | 5 +
> > > 1 file changed, 5 insertions(+)
> > >
> > > diff --git a/drivers
On Thu,23 July 2020 04:18:00 + Alex wrote:
> On Wed, 22 Jul 2020 19:57:48 +0800
> WeitaoWangoc wrote:
>
> > drivers/usb/core/hcd-pci.c | 5 +
> > 1 file changed, 5 insertions(+)
> >
> > diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c
> > index 1547aa6..484f2a0 10064
On Thu, Jul 23, 2020 at 02:59:55AM +, Weitao Wang(BJ-RD) wrote:
> CONFIDENTIAL NOTE:
> This email contains confidential or legally privileged information and is for
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> or forwarding of this email or the content of
On , Jul 22, 2020 at 02:44:14PM +0200, Alan wrote:
> On Wed, Jul 22, 2020 at 02:44:14PM +0200, Greg KH wrote:
> > On Wed, Jul 22, 2020 at 07:57:48PM +0800, WeitaoWangoc wrote:
> > > This bug is found in Zhaoxin platform, but it's a commom code bug.
> > > Fail sequence:
> > > step1: Unbind UHCI con
On Wed, Jul 22, 2020 at 02:44:14PM +0200, Greg KH wrote:
> On Wed, Jul 22, 2020 at 07:57:48PM +0800, WeitaoWangoc wrote:
> > This bug is found in Zhaoxin platform, but it's a commom code bug.
> > Fail sequence:
> > step1: Unbind UHCI controller from native driver;
> > step2: Bind UHCI controller
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