On Mon, Mar 29, 2021 at 08:17:35AM +0200, Christoph Hellwig wrote:
> On Sat, Mar 27, 2021 at 03:17:59PM -0700, Tao Ren wrote:
> > On Fri, Mar 26, 2021 at 01:05:26PM +0100, Christoph Hellwig wrote:
> > > On Fri, Mar 26, 2021 at 12:03:03PM +, Robin Murphy wrote:
> > > > This might happen to work
On Sat, Mar 27, 2021 at 03:17:59PM -0700, Tao Ren wrote:
> On Fri, Mar 26, 2021 at 01:05:26PM +0100, Christoph Hellwig wrote:
> > On Fri, Mar 26, 2021 at 12:03:03PM +, Robin Murphy wrote:
> > > This might happen to work out, but is far from correct. Just wait until
> > > you
> > > try it on a
On Fri, Mar 26, 2021 at 01:05:26PM +0100, Christoph Hellwig wrote:
> On Fri, Mar 26, 2021 at 12:03:03PM +, Robin Murphy wrote:
> > This might happen to work out, but is far from correct. Just wait until you
> > try it on a platform where the USB controller is behind an IOMMU...
> >
> > It look
On Fri, Mar 26, 2021 at 12:03:03PM +, Robin Murphy wrote:
> This might happen to work out, but is far from correct. Just wait until you
> try it on a platform where the USB controller is behind an IOMMU...
>
> It looks like something is more fundamentally wrong here - the device
> passed to D
On 2021-03-26 07:02, rentao.b...@gmail.com wrote:
From: Tao Ren
Set aspeed-usb vhub port_dev's dma mask to pass the dma_mask test in
"dma_map_page_attrs" function, and the dma_mask test was added in
'commit f959dcd6ddfd ("dma-direct: Fix potential NULL pointer
dereference")'.
Below is the back
From: Tao Ren
Set aspeed-usb vhub port_dev's dma mask to pass the dma_mask test in
"dma_map_page_attrs" function, and the dma_mask test was added in
'commit f959dcd6ddfd ("dma-direct: Fix potential NULL pointer
dereference")'.
Below is the backtrace without the patch:
[<80106550>] show_stack+0x2
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