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/linux-4.4.14/kernel/time/
Dntp.c853 static long hardpps_update_freq(struct pps_normtime freq_norm) in hardpps_update_freq() argument
859 if (freq_norm.sec > (2 << pps_shift)) { in hardpps_update_freq()
865 freq_norm.sec); in hardpps_update_freq()
873 ftemp = div_s64(((s64)(-freq_norm.nsec)) << NTP_SCALE_SHIFT, in hardpps_update_freq()
874 freq_norm.sec); in hardpps_update_freq()
953 struct pps_normtime pts_norm, freq_norm; in __hardpps() local
972 freq_norm = pps_normalize_ts(timespec64_sub(*raw_ts, pps_fbase)); in __hardpps()
976 if ((freq_norm.sec == 0) || in __hardpps()
977 (freq_norm.nsec > MAXFREQ * freq_norm.sec) || in __hardpps()
978 (freq_norm.nsec < -MAXFREQ * freq_norm.sec)) { in __hardpps()
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