include/linux/ethtool.h:160: warning: No description found for return value of 'ethtool_rxfh_indir_default'
include/linux/ethtool.h:1198: warning: No description found for return value of 'ethtool_get_phc_vclocks'
include/linux/ethtool.h:1212: warning: No description found for return value of 'ethtool_mm_frag_size_add_to_min'
include/linux/ethtool.h:1231: warning: No description found for return value of 'ethtool_mm_frag_size_min_to_add'
include/linux/ethtool.h:1253: warning: No description found for return value of 'ethtool_get_ts_info_by_layer'
include/linux/ptp_clock_kernel.h:237: warning: No description found for return value of 'scaled_ppm_to_ppb'
include/linux/ptp_clock_kernel.h:294: warning: No description found for return value of 'adjust_by_scaled_ppm'
include/linux/ptp_clock_kernel.h:318: warning: No description found for return value of 'ptp_clock_register'
include/linux/ptp_clock_kernel.h:326: warning: No description found for return value of 'ptp_clock_unregister'
include/linux/ptp_clock_kernel.h:344: warning: No description found for return value of 'ptp_clock_index'
include/linux/ptp_clock_kernel.h:499: warning: No description found for return value of 'ptp_schedule_worker'
include/linux/ptp_clock_kernel.h:574: warning: No description found for return value of 'ptp_get_vclocks_index'
include/linux/ptp_clock_kernel.h:584: warning: No description found for return value of 'ptp_convert_timestamp'
net/ethtool/common.c:697: 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:1202: warning: No description found for return value of 'ethtool_get_phc_vclocks'
include/linux/ethtool.h:1216: warning: No description found for return value of 'ethtool_mm_frag_size_add_to_min'
include/linux/ethtool.h:1235: warning: No description found for return value of 'ethtool_mm_frag_size_min_to_add'
include/linux/ethtool.h:1257: warning: No description found for return value of 'ethtool_get_ts_info_by_layer'
include/linux/ptp_clock_kernel.h:237: warning: No description found for return value of 'scaled_ppm_to_ppb'
include/linux/ptp_clock_kernel.h:294: warning: No description found for return value of 'adjust_by_scaled_ppm'
include/linux/ptp_clock_kernel.h:318: warning: No description found for return value of 'ptp_clock_register'
include/linux/ptp_clock_kernel.h:326: warning: No description found for return value of 'ptp_clock_unregister'
include/linux/ptp_clock_kernel.h:344: warning: No description found for return value of 'ptp_clock_index'
include/linux/ptp_clock_kernel.h:538: warning: No description found for return value of 'ptp_schedule_worker'
include/linux/ptp_clock_kernel.h:627: warning: No description found for return value of 'ptp_get_vclocks_index'
include/linux/ptp_clock_kernel.h:637: warning: No description found for return value of 'ptp_convert_timestamp'
net/ethtool/common.c:729: 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'