[PATCH] ppc32: stop misusing NTP's time_offset value
[linux-3.10.git] / arch / ppc / kernel / time.c
index 7358665..bf4ddca 100644 (file)
@@ -89,6 +89,9 @@ unsigned long tb_to_ns_scale;
 
 extern unsigned long wall_jiffies;
 
+/* used for timezone offset */
+static long timezone_offset;
+
 DEFINE_SPINLOCK(rtc_lock);
 
 EXPORT_SYMBOL(rtc_lock);
@@ -170,7 +173,7 @@ void timer_interrupt(struct pt_regs * regs)
                     xtime.tv_sec - last_rtc_update >= 659 &&
                     abs((xtime.tv_nsec / 1000) - (1000000-1000000/HZ)) < 500000/HZ &&
                     jiffies - wall_jiffies == 1) {
-                       if (ppc_md.set_rtc_time(xtime.tv_sec+1 + time_offset) == 0)
+                       if (ppc_md.set_rtc_time(xtime.tv_sec+1 + timezone_offset) == 0)
                                last_rtc_update = xtime.tv_sec+1;
                        else
                                /* Try again one minute later */
@@ -286,7 +289,7 @@ void __init time_init(void)
        unsigned old_stamp, stamp, elapsed;
 
         if (ppc_md.time_init != NULL)
-                time_offset = ppc_md.time_init();
+                timezone_offset = ppc_md.time_init();
 
        if (__USE_RTC()) {
                /* 601 processor: dec counts down by 128 every 128ns */
@@ -331,10 +334,10 @@ void __init time_init(void)
        set_dec(tb_ticks_per_jiffy);
 
        /* If platform provided a timezone (pmac), we correct the time */
-        if (time_offset) {
-               sys_tz.tz_minuteswest = -time_offset / 60;
+        if (timezone_offset) {
+               sys_tz.tz_minuteswest = -timezone_offset / 60;
                sys_tz.tz_dsttime = 0;
-               xtime.tv_sec -= time_offset;
+               xtime.tv_sec -= timezone_offset;
         }
         set_normalized_timespec(&wall_to_monotonic,
                                 -xtime.tv_sec, -xtime.tv_nsec);