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Clean up MI inittodr(9) and kill noop code.

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It was derived from i386 version long ago but never resync'ed again.
Originally, i386 version compared the current time from realtime clock
with time_second (which was just `time' in the old days).  When this MI
version was written, it was wrongly compared against `base' AND never
used because of a bug (typo?) in the code.  This check was killed
in i386 version when home-rolled calendaric calculation was removed.
Now, we just remove the code here as well to make the code simpler.
This commit is contained in:
Jung-uk Kim 2009-03-23 21:16:21 +00:00
parent 9b84ba1cbb
commit eae44ae03d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=190337
1 changed files with 13 additions and 21 deletions
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34
sys/kern/subr_rtc.c
View file

@ -109,44 +109,36 @@ clock_register(device_t dev, long res) /* res has units of microseconds */
void
inittodr(time_t base)
{
struct timespec diff, ref, ts;
struct timespec ref, ts;
int error;
if (base) {
ref.tv_sec = base;
ref.tv_nsec = 0;
tc_setclock(&ref);
}
if (clock_dev == NULL) {
printf("warning: no time-of-day clock registered, system time "
"will not be set accurately\n");
return;
goto wrong_time;
}
/* XXX: We should poll all registered RTCs in case of failure */
error = CLOCK_GETTIME(clock_dev, &ts);
if (error != 0 && error != EINVAL) {
printf("warning: clock_gettime failed (%d), the system time "
"will not be set accurately\n", error);
return;
goto wrong_time;
}
if (error == EINVAL || ts.tv_sec < 0) {
printf("Invalid time in real time clock.\n");
printf("Check and reset the date immediately!\n");
printf("Invalid time in real time clock.\n"
"Check and reset the date immediately!\n");
goto wrong_time;
}
ts.tv_sec += utc_offset();
tc_setclock(&ts);
return;
if (timespeccmp(&ref, &ts, >)) {
diff = ref;
timespecsub(&ref, &ts);
} else {
diff = ts;
timespecsub(&diff, &ref);
}
if (ts.tv_sec >= 2) {
/* badly off, adjust it */
tc_setclock(&ts);
wrong_time:
if (base > 0) {
ref.tv_sec = base;
ref.tv_nsec = 0;
tc_setclock(&ref);
}
}