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SubjectRe: [PATCH v5 1/5] usb: dwc3: Avoid unmapping USB requests if endxfer is not complete
On Wed, Aug 31, 2022 at 11:32:38AM -0700, Wesley Cheng wrote:
> If DWC3_EP_DELAYED_STOP is set during stop active transfers, then do not
> continue attempting to unmap request buffers during dwc3_remove_requests().
> This can lead to SMMU faults, as the controller has not stopped the
> processing of the TRB. Defer this sequence to the EP0 out start, which
> ensures that there are no pending SETUP transactions before issuing the
> endxfer.
>
> Reviewed-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
> Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
> ---
> drivers/usb/dwc3/core.h | 3 +++
> drivers/usb/dwc3/ep0.c | 5 ++++-
> drivers/usb/dwc3/gadget.c | 6 +++++-
> 3 files changed, 12 insertions(+), 2 deletions(-)

As the kernel-test robot reported, this patch doesn't even build. How
did you test it?

greg k-h

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