On 1/27/20 1:25 PM, Vignesh Raghavendra wrote: > Invalidate dcache line before accessing Setup Packet contents. Otherwise > driver will see stale content on non coherent architecture. > > Signed-off-by: Vignesh Raghavendra <vigne...@ti.com> > --- > drivers/usb/cdns3/ep0.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/usb/cdns3/ep0.c b/drivers/usb/cdns3/ep0.c > index 0b6d9cf7274e..f35a92483948 100644 > --- a/drivers/usb/cdns3/ep0.c > +++ b/drivers/usb/cdns3/ep0.c > @@ -562,6 +562,10 @@ static void cdns3_ep0_setup_phase(struct cdns3_device > *priv_dev) > struct cdns3_endpoint *priv_ep = priv_dev->eps[0]; > int result; > > + /* Invalidate Setup Packet received */ > + invalidate_dcache_range(priv_dev->setup_dma, > + priv_dev->setup_dma + ARCH_DMA_MINALIGN); > + > priv_dev->ep0_data_dir = ctrl->bRequestType & USB_DIR_IN; > > trace_cdns3_ctrl_req(ctrl); >
Applied, thanks.
