From 4758dcd19a7d9ba9610b38fecb93f65f56f86346 Mon Sep 17 00:00:00 2001
From: Reyad Attiyat <reyad.attiyat@gmail.com>
Date: Thu, 6 Aug 2015 19:23:58 +0300
Subject: [PATCH] usb: xhci: Add support for URB_ZERO_PACKET to bulk/sg
 transfers

This commit checks for the URB_ZERO_PACKET flag and creates an extra
zero-length td if the urb transfer length is a multiple of the endpoint's
max packet length.

Signed-off-by: Reyad Attiyat <reyad.attiyat@gmail.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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