include/linux/ethtool.h:160: warning: No description found for return value of 'ethtool_rxfh_indir_default'
include/linux/ethtool.h:1201: warning: No description found for return value of 'ethtool_get_phc_vclocks'
include/linux/ethtool.h:1215: warning: No description found for return value of 'ethtool_mm_frag_size_add_to_min'
include/linux/ethtool.h:1234: warning: No description found for return value of 'ethtool_mm_frag_size_min_to_add'
include/linux/ethtool.h:1256: warning: No description found for return value of 'ethtool_get_ts_info_by_layer'
include/linux/ptp_clock_kernel.h:239: warning: No description found for return value of 'scaled_ppm_to_ppb'
include/linux/ptp_clock_kernel.h:296: warning: No description found for return value of 'adjust_by_scaled_ppm'
include/linux/ptp_clock_kernel.h:320: warning: No description found for return value of 'ptp_clock_register'
include/linux/ptp_clock_kernel.h:328: warning: No description found for return value of 'ptp_clock_unregister'
include/linux/ptp_clock_kernel.h:346: warning: No description found for return value of 'ptp_clock_index'
include/linux/ptp_clock_kernel.h:501: warning: No description found for return value of 'ptp_schedule_worker'
include/linux/ptp_clock_kernel.h:576: warning: No description found for return value of 'ptp_get_vclocks_index'
include/linux/ptp_clock_kernel.h:586: warning: No description found for return value of 'ptp_convert_timestamp'
net/ethtool/common.c:814: warning: missing initial short description on line:
 * ethtool_forced_speed_maps_init
net/ethtool/netlink.h:230: warning: No description found for return value of 'ethnl_reply_header_size'
Error: Cannot open file net/ethtool/ts.h
include/linux/ethtool.h:160: warning: No description found for return value of 'ethtool_rxfh_indir_default'
include/linux/ethtool.h:1205: warning: No description found for return value of 'ethtool_get_phc_vclocks'
include/linux/ethtool.h:1219: warning: No description found for return value of 'ethtool_mm_frag_size_add_to_min'
include/linux/ethtool.h:1238: warning: No description found for return value of 'ethtool_mm_frag_size_min_to_add'
include/linux/ethtool.h:1260: warning: No description found for return value of 'ethtool_get_ts_info_by_layer'
include/linux/ptp_clock_kernel.h:239: warning: No description found for return value of 'scaled_ppm_to_ppb'
include/linux/ptp_clock_kernel.h:296: warning: No description found for return value of 'adjust_by_scaled_ppm'
include/linux/ptp_clock_kernel.h:320: warning: No description found for return value of 'ptp_clock_register'
include/linux/ptp_clock_kernel.h:328: warning: No description found for return value of 'ptp_clock_unregister'
include/linux/ptp_clock_kernel.h:346: warning: No description found for return value of 'ptp_clock_index'
include/linux/ptp_clock_kernel.h:540: warning: No description found for return value of 'ptp_schedule_worker'
include/linux/ptp_clock_kernel.h:629: warning: No description found for return value of 'ptp_get_vclocks_index'
include/linux/ptp_clock_kernel.h:639: warning: No description found for return value of 'ptp_convert_timestamp'
net/ethtool/common.c:847: warning: missing initial short description on line:
 * ethtool_forced_speed_maps_init
net/ethtool/netlink.h:230: warning: No description found for return value of 'ethnl_reply_header_size'