Commit de68d9b1 authored by Thomas Gleixner's avatar Thomas Gleixner Committed by Thomas Gleixner
Browse files

clockevents: Allow build w/o run-tine usage for migration purposes



Migration aid to allow preparatory patches which introduce not yet
used parts of clock events code.

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarArjan van de Ven <arjan@linux.intel.com>
parent 7f8033b7
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+6 −2
Original line number Diff line number Diff line
@@ -8,7 +8,7 @@
#ifndef _LINUX_CLOCKCHIPS_H
#define _LINUX_CLOCKCHIPS_H

#ifdef CONFIG_GENERIC_CLOCKEVENTS
#ifdef CONFIG_GENERIC_CLOCKEVENTS_BUILD

#include <linux/clocksource.h>
#include <linux/cpumask.h>
@@ -126,9 +126,13 @@ extern int clockevents_register_notifier(struct notifier_block *nb);
extern int clockevents_program_event(struct clock_event_device *dev,
				     ktime_t expires, ktime_t now);

#ifdef CONFIG_GENERIC_CLOCKEVENTS
extern void clockevents_notify(unsigned long reason, void *arg);

#else
# define clockevents_notify(reason, arg) do { } while (0)
#endif

#else /* CONFIG_GENERIC_CLOCKEVENTS_BUILD */

#define clockevents_notify(reason, arg) do { } while (0)

+5 −0
Original line number Diff line number Diff line
@@ -23,3 +23,8 @@ config HIGH_RES_TIMERS
	  hardware is not capable then this option only increases
	  the size of the kernel image.

config GENERIC_CLOCKEVENTS_BUILD
	bool
	default y
	depends on GENERIC_CLOCKEVENTS || GENERIC_CLOCKEVENTS_MIGR
+1 −1
Original line number Diff line number Diff line
obj-y += timekeeping.o ntp.o clocksource.o jiffies.o timer_list.o

obj-$(CONFIG_GENERIC_CLOCKEVENTS)		+= clockevents.o
obj-$(CONFIG_GENERIC_CLOCKEVENTS_BUILD)		+= clockevents.o
obj-$(CONFIG_GENERIC_CLOCKEVENTS)		+= tick-common.o
obj-$(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)	+= tick-broadcast.o
obj-$(CONFIG_TICK_ONESHOT)			+= tick-oneshot.o
+2 −1
Original line number Diff line number Diff line
@@ -194,6 +194,7 @@ void clockevents_exchange_device(struct clock_event_device *old,
	local_irq_restore(flags);
}

#ifdef CONFIG_GENERIC_CLOCKEVENTS
/**
 * clockevents_notify - notification about relevant events
 */
@@ -222,4 +223,4 @@ void clockevents_notify(unsigned long reason, void *arg)
	spin_unlock(&clockevents_lock);
}
EXPORT_SYMBOL_GPL(clockevents_notify);
#endif