Messages in this thread | | | Date | Tue, 30 Aug 2022 11:13:59 -0700 | Subject | Re: [PATCH v4 5/9] usb: dwc3: Avoid unmapping USB requests if endxfer is not complete | From | Wesley Cheng <> |
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Hi Greg,
On 8/30/2022 7:08 AM, Greg KH wrote: > On Wed, Aug 17, 2022 at 11:23:55AM -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(-) >> > > This commit does not apply to my usb-testing branch. I've taken the > first 4, please rebase and resend the rest. >
Sure resubmit it later today. Sorry about that and thanks for the heads up.
Thanks Wesley Cheng
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