include/linux/ptp_clock_kernel.h:235: warning: No description found for return value of 'scaled_ppm_to_ppb'
include/linux/ptp_clock_kernel.h:292: warning: No description found for return value of 'adjust_by_scaled_ppm'
include/linux/ptp_clock_kernel.h:316: warning: No description found for return value of 'ptp_clock_register'
include/linux/ptp_clock_kernel.h:324: warning: No description found for return value of 'ptp_clock_unregister'
include/linux/ptp_clock_kernel.h:342: warning: No description found for return value of 'ptp_clock_index'
include/linux/ptp_clock_kernel.h:389: warning: No description found for return value of 'ptp_schedule_worker'
include/linux/ptp_clock_kernel.h:439: warning: No description found for return value of 'ptp_get_vclocks_index'
include/linux/ptp_clock_kernel.h:449: warning: No description found for return value of 'ptp_convert_timestamp'
include/linux/ptp_clock_kernel.h:246: warning: No description found for return value of 'scaled_ppm_to_ppb'
include/linux/ptp_clock_kernel.h:303: warning: No description found for return value of 'adjust_by_scaled_ppm'
include/linux/ptp_clock_kernel.h:327: warning: No description found for return value of 'ptp_clock_register'
include/linux/ptp_clock_kernel.h:335: warning: No description found for return value of 'ptp_clock_unregister'
include/linux/ptp_clock_kernel.h:353: warning: No description found for return value of 'ptp_clock_index'
include/linux/ptp_clock_kernel.h:400: warning: No description found for return value of 'ptp_schedule_worker'
include/linux/ptp_clock_kernel.h:450: warning: No description found for return value of 'ptp_get_vclocks_index'
include/linux/ptp_clock_kernel.h:460: warning: No description found for return value of 'ptp_convert_timestamp'