net/core/dev_ioctl.c:272: warning: No description found for return value of 'dev_get_hwtstamp_phylib' net/core/dev_ioctl.c:326: warning: No description found for return value of 'dev_set_hwtstamp_phylib' net/core/dev_ioctl.c:671: warning: No description found for return value of 'dev_ioctl' net/core/dev_ioctl.c:272: warning: No description found for return value of 'dev_get_hwtstamp_phylib' net/core/dev_ioctl.c:326: warning: No description found for return value of 'dev_set_hwtstamp_phylib' net/core/dev_ioctl.c:671: warning: No description found for return value of 'dev_ioctl'