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

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 <[email protected]> Signed-off-by: Lorenzo Colitti <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
zandrey · Oct 2, 2020 · 7974ecd · 7974ecd
1 parent a176b1a
commit 7974ecd
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/drivers/usb/gadget/function/f_ncm.c b/drivers/usb/gadget/function/f_ncm.c
@@ -1536,7 +1536,7 @@ static int ncm_bind(struct usb_configuration *c, struct usb_function *f)
 		fs_ncm_notify_desc.bEndpointAddress;
 
 	status = usb_assign_descriptors(f, ncm_fs_function, ncm_hs_function,
-			ncm_ss_function, NULL);
+			ncm_ss_function, ncm_ss_function);
 	if (status)
 		goto fail;