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-rw-r--r--kernel/timer.c16
1 files changed, 11 insertions, 5 deletions
diff --git a/kernel/timer.c b/kernel/timer.c
index b1f40f256eb0..0256ab443d8a 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -846,7 +846,7 @@ static int change_clocksource(void)
846 clock = new; 846 clock = new;
847 clock->cycle_last = now; 847 clock->cycle_last = now;
848 printk(KERN_INFO "Time: %s clocksource has been installed.\n", 848 printk(KERN_INFO "Time: %s clocksource has been installed.\n",
849 clock->name); 849 clock->name);
850 return 1; 850 return 1;
851 } else if (clock->update_callback) { 851 } else if (clock->update_callback) {
852 return clock->update_callback(); 852 return clock->update_callback();
@@ -854,7 +854,10 @@ static int change_clocksource(void)
854 return 0; 854 return 0;
855} 855}
856#else 856#else
857#define change_clocksource() (0) 857static inline int change_clocksource(void)
858{
859 return 0;
860}
858#endif 861#endif
859 862
860/** 863/**
@@ -952,7 +955,8 @@ device_initcall(timekeeping_init_device);
952 * If the error is already larger, we look ahead even further 955 * If the error is already larger, we look ahead even further
953 * to compensate for late or lost adjustments. 956 * to compensate for late or lost adjustments.
954 */ 957 */
955static __always_inline int clocksource_bigadjust(s64 error, s64 *interval, s64 *offset) 958static __always_inline int clocksource_bigadjust(s64 error, s64 *interval,
959 s64 *offset)
956{ 960{
957 s64 tick_error, i; 961 s64 tick_error, i;
958 u32 look_ahead, adj; 962 u32 look_ahead, adj;
@@ -976,7 +980,8 @@ static __always_inline int clocksource_bigadjust(s64 error, s64 *interval, s64 *
976 * Now calculate the error in (1 << look_ahead) ticks, but first 980 * Now calculate the error in (1 << look_ahead) ticks, but first
977 * remove the single look ahead already included in the error. 981 * remove the single look ahead already included in the error.
978 */ 982 */
979 tick_error = current_tick_length() >> (TICK_LENGTH_SHIFT - clock->shift + 1); 983 tick_error = current_tick_length() >>
984 (TICK_LENGTH_SHIFT - clock->shift + 1);
980 tick_error -= clock->xtime_interval >> 1; 985 tick_error -= clock->xtime_interval >> 1;
981 error = ((error - tick_error) >> look_ahead) + tick_error; 986 error = ((error - tick_error) >> look_ahead) + tick_error;
982 987
@@ -1028,7 +1033,8 @@ static void clocksource_adjust(struct clocksource *clock, s64 offset)
1028 clock->mult += adj; 1033 clock->mult += adj;
1029 clock->xtime_interval += interval; 1034 clock->xtime_interval += interval;
1030 clock->xtime_nsec -= offset; 1035 clock->xtime_nsec -= offset;
1031 clock->error -= (interval - offset) << (TICK_LENGTH_SHIFT - clock->shift); 1036 clock->error -= (interval - offset) <<
1037 (TICK_LENGTH_SHIFT - clock->shift);
1032} 1038}
1033 1039
1034/** 1040/**