[PATCH] NTP: ntp-helper functions

This patch cleans up a commonly repeated set of changes to the NTP state
variables by adding two helper inline functions:

ntp_clear(): Clears the ntp state variables

ntp_synced(): Returns 1 if the system is synced with a time server.

This was compile tested for alpha, arm, i386, x86-64, ppc64, s390, sparc,
sparc64.

Signed-off-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 5 deletions

diff --git a/arch/sh/kernel/time.c b/arch/sh/kernel/time.c
index d5f5aedde0a3..02ca69918d7c 100644
--- a/arch/sh/kernel/time.c
+++ b/arch/sh/kernel/time.c
@@ -215,10 +215,7 @@ int do_settimeofday(struct timespec *tv)
         set_normalized_timespec(&xtime, sec, nsec);
         set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec);
 
-        time_adjust = 0;                /* stop active adjtime() */
-        time_status |= STA_UNSYNC;
-        time_maxerror = NTP_PHASE_LIMIT;
-        time_esterror = NTP_PHASE_LIMIT;
+        ntp_clear();
         write_sequnlock_irq(&xtime_lock);
         clock_was_set();
 
@@ -252,7 +249,7 @@ static inline void do_timer_interrupt(int irq, struct pt_regs *regs)
          * RTC clock accordingly every ~11 minutes. Set_rtc_mmss() has to be
          * called as close as possible to 500 ms before the new second starts.
          */
-        if ((time_status & STA_UNSYNC) == 0 &&
+        if (ntp_synced() &&
             xtime.tv_sec > last_rtc_update + 660 &&
             (xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 &&
             (xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) {