383 /* Setup the first bd for ep0 transfer */
400 				(req_len % bdc->gadget.ep0->maxpacket == 0)) {  in setup_first_bd_ep0()
403 					bdc->gadget.ep0->maxpacket);  in setup_first_bd_ep0()
416 			"Unknown ep0 state for queueing bd ep0_state:%s\n",  in setup_first_bd_ep0()
455 			/* format of first bd for ep0 is different than other */  in setup_bd_list_xfr()
587 	/* ep0 memory is not freed, but reused on next connect sr */  in bdc_ep_disable()
617 	/* only for ep0: config ep is called for ep0 from connect event */  in bdc_ep_enable()
635 /* EP0 related code */
655 /* Queue xfr on ep0 */
915 		/* ep0 is not in this gadget list */  in bdc_free_ep()
1058 /* EP0 setup related packet handlers */
1087 /* Stall ep0 */
1278 			epnum = 1; /*EP0*/  in ep0_handle_feature()
1281 		 * If CLEAR_FEATURE on ep0 then don't do anything as the stall  in ep0_handle_feature()
1282 		 * condition on ep0 has already been cleared when SETUP packet  in ep0_handle_feature()
1286 			dev_dbg(bdc->dev, "ep0 stall already cleared\n");  in ep0_handle_feature()
1353 			epnum = 1; /* EP0 */  in ep0_handle_status()
1509 /* EP0: Data stage started */
1517 	/* If ep0 was stalled, the clear it first */  in bdc_xsf_ep0_data_start()
1531 		 * The ep0 state will remain WAIT_FOR_DATA_START till  in bdc_xsf_ep0_data_start()
1532 		 * we received ep_queue on ep0  in bdc_xsf_ep0_data_start()
1547 /* EP0: status stage started */
1609 /* Helper function to update ep0 upon SR with xsf_succ or xsf_short */
1682 				"ep0 related packets on non ep0 endpoint");  in bdc_sr_xsf()
1690 			dev_dbg(bdc->dev, "Babble on ep0 zlp_need:%d\n",  in bdc_sr_xsf()
1878 	/* Sanity check, upper layer will not send enable for ep0 */  in bdc_gadget_ep_enable()
1911 	/* Upper layer will not call this for ep0, but do a sanity check */  in bdc_gadget_ep_disable()
1913 		dev_warn(bdc->dev, "%s called for ep0\n", __func__);  in bdc_gadget_ep_disable()
1969 		bdc->gadget.ep0 = &ep->usb_ep;  in init_ep()
2007 	/* init ep0 */  in bdc_init_ep()
2010 		dev_err(bdc->dev, "init ep ep0 fail %d\n", ret);  in bdc_init_ep()