tree d8a796a46b1e3df3ece8983491240cf8b0e6e226
parent db11351a887e20ff86e3a4c1f466d3d8dd42754a
author Felipe Balbi <felipe.balbi@linux.intel.com> 1712953565 +0200
committer Mattijs Korpershoek <mkorpershoek@baylibre.com> 1715841504 +0200

usb: dwc3: gadget: properly check ep cmd

Upstream Linux commit 5999914f227b.

The cmd argument we pass to
dwc3_send_gadget_ep_cmd() could contain extra
arguments embedded. When checking for StartTransfer
command, we need to make sure to match only lower 4
bits which contain the actual command and ignore the
rest.

Reported-by: Janusz Dziedzic <januszx.dziedzic@intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
[A. Sverdlin: cherry-picked only DWC3_DEPCMD_CMD() define]
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Link: https://lore.kernel.org/r/20240412202611.3565052-6-alexander.sverdlin@siemens.com
Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>