tree a22993b45a9f5a6acf0ee690ee2df6db4d076247
parent efb893a56cea0b489a8802ddc4c4f61a2063ee5b
author Lorenzo Colitti <lorenzo@google.com> 1598334905 +0900
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1603961891 +0100

usb: gadget: f_ncm: allow using NCM in SuperSpeed Plus gadgets.

[ Upstream commit 7974ecd7d3c0f42a98566f281e44ea8573a2ad88 ]

Currently, enabling f_ncm at SuperSpeed Plus speeds results in an
oops in config_ep_by_speed because ncm_set_alt passes in NULL
ssp_descriptors. Fix this by re-using the SuperSpeed descriptors.
This is safe because usb_assign_descriptors calls
usb_copy_descriptors.

Tested: enabled f_ncm on a dwc3 gadget and 10Gbps link, ran iperf
Reviewed-by: Maciej Żenczykowski <maze@google.com>
Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>