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 <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
[A. Sverdlin: cherry-picked only DWC3_DEPCMD_CMD() define]
Signed-off-by: Alexander Sverdlin <[email protected]>
Reviewed-by: Mattijs Korpershoek <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mattijs Korpershoek <[email protected]>

0 files changed, 0 insertions, 0 deletions