ntp: Move do_adjtimex() and hardpps() functions to timekeeping.c
In preparation for changing the ntp locking rules, move
do_adjtimex and hardpps accessor functions to timekeeping.c,
but keep the code logic in ntp.c.
This patch also introduces a ntp_internal.h file so timekeeping
specific interfaces of ntp.c can be more limitedly shared with
timekeeping.c.
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index 457d2ba..8b10706 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -18,6 +18,7 @@
#include <linux/rtc.h>
#include "tick-internal.h"
+#include "ntp_internal.h"
/*
* NTP timekeeping variables:
@@ -661,7 +662,7 @@
* adjtimex mainly allows reading (and writing, if superuser) of
* kernel time-keeping variables. used by xntpd.
*/
-int do_adjtimex(struct timex *txc)
+int __do_adjtimex(struct timex *txc)
{
struct timespec ts;
u32 time_tai, orig_tai;
@@ -911,7 +912,7 @@
}
/*
- * hardpps() - discipline CPU clock oscillator to external PPS signal
+ * __hardpps() - discipline CPU clock oscillator to external PPS signal
*
* This routine is called at each PPS signal arrival in order to
* discipline the CPU clock oscillator to the PPS signal. It takes two
@@ -922,7 +923,7 @@
* This code is based on David Mills's reference nanokernel
* implementation. It was mostly rewritten but keeps the same idea.
*/
-void hardpps(const struct timespec *phase_ts, const struct timespec *raw_ts)
+void __hardpps(const struct timespec *phase_ts, const struct timespec *raw_ts)
{
struct pps_normtime pts_norm, freq_norm;
unsigned long flags;
@@ -976,8 +977,6 @@
raw_spin_unlock_irqrestore(&ntp_lock, flags);
}
-EXPORT_SYMBOL(hardpps);
-
#endif /* CONFIG_NTP_PPS */
static int __init ntp_tick_adj_setup(char *str)
