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usb: dwc2: gadget: Fix sending zero length packet in DDMA mode.
commit d53dc38 upstream. Sending zero length packet in DDMA mode perform by DMA descriptor by setting SP (short packet) flag. For DDMA in function dwc2_hsotg_complete_in() does not need to send zlp. Tested by USBCV MSC tests. Fixes: f71b5e2 ("usb: dwc2: gadget: fix zero length packet transfers") Cc: stable <stable@vger.kernel.org> Signed-off-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com> Link: https://lore.kernel.org/r/967bad78c55dd2db1c19714eee3d0a17cf99d74a.1626777738.git.Minas.Harutyunyan@synopsys.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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