Re: [PATCH] usb: dwc3: qcom: Add shutdown handler

[Greg Kroah-Hartman]

On Fri, Jul 25, 2025 at 11:51:58AM +0530, Prashanth K wrote:
> Currently during system reboot, SMMU disables its translations
> while devices like USB may still be actively using DMA buffers.
> This can lead to NOC errors and system crashes due to invalid
> memory access.
> 
> Address this by adding a shutdown callback to dwc3-qcom, which
> ensures proper teardown of UDC stack and prevents DWC3 controller
> from accessing memory after SMMU translation is disabled. Reuse
> the existing remove callback for this purpose.
> 
> Signed-off-by: Prashanth K <prashanth.k@xxxxxxxxxxxxxxxx>
> ---
>  drivers/usb/dwc3/dwc3-qcom.c | 8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)

What commit id does this fix?  Or is this just a new feature?

thanks,

greg k-h