On Thu, Oct 24, 2024 at 05:06:44PM +0300, Mathias Nyman wrote:
On 22.10.2024 18.56, Faisal Hassan wrote:
During the aborting of a command, the software receives a command completion event for the command ring stopped, with the TRB pointing to the next TRB after the aborted command.
If the command we abort is located just before the Link TRB in the command ring, then during the 'command ring stopped' completion event, the xHC gives the Link TRB in the event's cmd DMA, which causes a mismatch in handling command completion event.
To address this situation, move the 'command ring stopped' completion event check slightly earlier, since the specific command it stopped on isn't of significant concern.
Fixes: 7f84eef0dafb ("USB: xhci: No-op command queueing and irq handler.") Cc: stable@vger.kernel.org Signed-off-by: Faisal Hassan quic_faisalh@quicinc.com
Acked-by: Mathias Nyman mathias.nyman@linux.intel.com
Greg, would you like to take this directly to usb-linus (6.12)? If not I'll send it as part of series to usb-next later
Sure, I'll take it now, thanks.
greg k-h