Re: [PATCH] xhci: Fix Link TRB DMA in command ring stopped completion event

[Greg Kroah-Hartman]

On Sat, Oct 19, 2024 at 01:29:53AM +0530, 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 handle this situation, an additional check has been added to ignore
> the mismatch error and continue the operation.
> 
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Faisal Hassan <quic_faisalh@xxxxxxxxxxx>

What commit id does this fix?

thanks,

greg k-h