Warnings before patch:
files: ['drivers/usb/chipidea/ci_hdrc_imx.c', 'drivers/usb/core/hcd.c', 'drivers/usb/dwc3/dwc3-generic-plat.c', 'drivers/usb/dwc3/dwc3-imx.c', 'drivers/usb/dwc3/gadget.c']
Warning: drivers/usb/core/hcd.c:2803 No description found for return value of 'usb_add_hcd'
Warning: drivers/usb/dwc3/gadget.c:41 No description found for return value of 'dwc3_gadget_set_test_mode'
Warning: drivers/usb/dwc3/gadget.c:72 No description found for return value of 'dwc3_gadget_get_link_state'
Warning: drivers/usb/dwc3/gadget.c:89 No description found for return value of 'dwc3_gadget_set_link_state'
Warning: drivers/usb/dwc3/gadget.c:256 No description found for return value of 'dwc3_send_gadget_generic_command'
Warning: drivers/usb/dwc3/gadget.c:313 No description found for return value of 'dwc3_send_gadget_ep_cmd'
Warning: drivers/usb/dwc3/gadget.c:553 No description found for return value of 'dwc3_gadget_start_config'
Warning: drivers/usb/dwc3/gadget.c:683 No description found for return value of 'dwc3_gadget_calc_tx_fifo_size'
Warning: drivers/usb/dwc3/gadget.c:705 No description found for return value of 'dwc3_gadget_calc_ram_depth'
Warning: drivers/usb/dwc3/gadget.c:917 No description found for return value of '__dwc3_gadget_ep_enable'
Warning: drivers/usb/dwc3/gadget.c:1071 No description found for return value of '__dwc3_gadget_ep_disable'
Warning: drivers/usb/dwc3/gadget.c:1223 No description found for return value of 'dwc3_ep_prev_trb'
Warning: drivers/usb/dwc3/gadget.c:1448 No description found for return value of 'dwc3_prepare_last_sg'
Warning: drivers/usb/dwc3/gadget.c:1761 No description found for return value of '__dwc3_stop_active_transfer'
Warning: drivers/usb/dwc3/gadget.c:1841 No description found for return value of 'dwc3_gadget_start_isoc_quirk'
Warning: drivers/usb/dwc3/gadget.c:3150 No description found for return value of 'dwc3_gadget_check_config'
Warning: drivers/usb/dwc3/gadget.c:4694 No description found for return value of 'dwc3_gadget_init'
Warning: drivers/usb/core/hcd.c:2803 No description found for return value of 'usb_add_hcd'
Warning: drivers/usb/dwc3/gadget.c:41 No description found for return value of 'dwc3_gadget_set_test_mode'
Warning: drivers/usb/dwc3/gadget.c:72 No description found for return value of 'dwc3_gadget_get_link_state'
Warning: drivers/usb/dwc3/gadget.c:89 No description found for return value of 'dwc3_gadget_set_link_state'
Warning: drivers/usb/dwc3/gadget.c:256 No description found for return value of 'dwc3_send_gadget_generic_command'
Warning: drivers/usb/dwc3/gadget.c:313 No description found for return value of 'dwc3_send_gadget_ep_cmd'
Warning: drivers/usb/dwc3/gadget.c:553 No description found for return value of 'dwc3_gadget_start_config'
Warning: drivers/usb/dwc3/gadget.c:683 No description found for return value of 'dwc3_gadget_calc_tx_fifo_size'
Warning: drivers/usb/dwc3/gadget.c:705 No description found for return value of 'dwc3_gadget_calc_ram_depth'
Warning: drivers/usb/dwc3/gadget.c:917 No description found for return value of '__dwc3_gadget_ep_enable'
Warning: drivers/usb/dwc3/gadget.c:1071 No description found for return value of '__dwc3_gadget_ep_disable'
Warning: drivers/usb/dwc3/gadget.c:1223 No description found for return value of 'dwc3_ep_prev_trb'
Warning: drivers/usb/dwc3/gadget.c:1448 No description found for return value of 'dwc3_prepare_last_sg'
Warning: drivers/usb/dwc3/gadget.c:1761 No description found for return value of '__dwc3_stop_active_transfer'
Warning: drivers/usb/dwc3/gadget.c:1841 No description found for return value of 'dwc3_gadget_start_isoc_quirk'
Warning: drivers/usb/dwc3/gadget.c:3150 No description found for return value of 'dwc3_gadget_check_config'
Warning: drivers/usb/dwc3/gadget.c:4694 No description found for return value of 'dwc3_gadget_init'

Current warnings:
files: ['drivers/usb/chipidea/ci_hdrc_imx.c', 'drivers/usb/core/hcd.c', 'drivers/usb/dwc3/dwc3-generic-plat.c', 'drivers/usb/dwc3/dwc3-imx.c', 'drivers/usb/dwc3/gadget.c']
Warning: drivers/usb/core/hcd.c:2804 No description found for return value of 'usb_add_hcd'
Warning: drivers/usb/dwc3/gadget.c:42 No description found for return value of 'dwc3_gadget_set_test_mode'
Warning: drivers/usb/dwc3/gadget.c:73 No description found for return value of 'dwc3_gadget_get_link_state'
Warning: drivers/usb/dwc3/gadget.c:90 No description found for return value of 'dwc3_gadget_set_link_state'
Warning: drivers/usb/dwc3/gadget.c:257 No description found for return value of 'dwc3_send_gadget_generic_command'
Warning: drivers/usb/dwc3/gadget.c:314 No description found for return value of 'dwc3_send_gadget_ep_cmd'
Warning: drivers/usb/dwc3/gadget.c:554 No description found for return value of 'dwc3_gadget_start_config'
Warning: drivers/usb/dwc3/gadget.c:684 No description found for return value of 'dwc3_gadget_calc_tx_fifo_size'
Warning: drivers/usb/dwc3/gadget.c:706 No description found for return value of 'dwc3_gadget_calc_ram_depth'
Warning: drivers/usb/dwc3/gadget.c:918 No description found for return value of '__dwc3_gadget_ep_enable'
Warning: drivers/usb/dwc3/gadget.c:1072 No description found for return value of '__dwc3_gadget_ep_disable'
Warning: drivers/usb/dwc3/gadget.c:1224 No description found for return value of 'dwc3_ep_prev_trb'
Warning: drivers/usb/dwc3/gadget.c:1449 No description found for return value of 'dwc3_prepare_last_sg'
Warning: drivers/usb/dwc3/gadget.c:1762 No description found for return value of '__dwc3_stop_active_transfer'
Warning: drivers/usb/dwc3/gadget.c:1842 No description found for return value of 'dwc3_gadget_start_isoc_quirk'
Warning: drivers/usb/dwc3/gadget.c:3151 No description found for return value of 'dwc3_gadget_check_config'
Warning: drivers/usb/dwc3/gadget.c:4695 No description found for return value of 'dwc3_gadget_init'
Warning: drivers/usb/core/hcd.c:2804 No description found for return value of 'usb_add_hcd'
Warning: drivers/usb/dwc3/gadget.c:42 No description found for return value of 'dwc3_gadget_set_test_mode'
Warning: drivers/usb/dwc3/gadget.c:73 No description found for return value of 'dwc3_gadget_get_link_state'
Warning: drivers/usb/dwc3/gadget.c:90 No description found for return value of 'dwc3_gadget_set_link_state'
Warning: drivers/usb/dwc3/gadget.c:257 No description found for return value of 'dwc3_send_gadget_generic_command'
Warning: drivers/usb/dwc3/gadget.c:314 No description found for return value of 'dwc3_send_gadget_ep_cmd'
Warning: drivers/usb/dwc3/gadget.c:554 No description found for return value of 'dwc3_gadget_start_config'
Warning: drivers/usb/dwc3/gadget.c:684 No description found for return value of 'dwc3_gadget_calc_tx_fifo_size'
Warning: drivers/usb/dwc3/gadget.c:706 No description found for return value of 'dwc3_gadget_calc_ram_depth'
Warning: drivers/usb/dwc3/gadget.c:918 No description found for return value of '__dwc3_gadget_ep_enable'
Warning: drivers/usb/dwc3/gadget.c:1072 No description found for return value of '__dwc3_gadget_ep_disable'
Warning: drivers/usb/dwc3/gadget.c:1224 No description found for return value of 'dwc3_ep_prev_trb'
Warning: drivers/usb/dwc3/gadget.c:1449 No description found for return value of 'dwc3_prepare_last_sg'
Warning: drivers/usb/dwc3/gadget.c:1762 No description found for return value of '__dwc3_stop_active_transfer'
Warning: drivers/usb/dwc3/gadget.c:1842 No description found for return value of 'dwc3_gadget_start_isoc_quirk'
Warning: drivers/usb/dwc3/gadget.c:3151 No description found for return value of 'dwc3_gadget_check_config'
Warning: drivers/usb/dwc3/gadget.c:4695 No description found for return value of 'dwc3_gadget_init'

Warnings before: 34 after: 34