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timekeeping: Simplify arch_gettimeoffset() 

Provide a default stub function instead of having the extra
conditional. Cuts binary size on a m68k build by ~100 bytes.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
This commit is contained in:
Thomas Gleixner 2014-07-16 21:03:50 +00:00 committed by John Stultz
parent dc01c9fae1
commit e06fde37b8
1 changed files with 6 additions and 12 deletions
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18
kernel/time/timekeeping.c
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@ -153,16 +153,10 @@ static void tk_setup_internals(struct timekeeper *tk, struct clocksource *clock)
/* Timekeeper helper functions. */
#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
u32 (*arch_gettimeoffset)(void);
u32 get_arch_timeoffset(void)
{
if (likely(arch_gettimeoffset))
return arch_gettimeoffset();
return 0;
}
static u32 default_arch_gettimeoffset(void) { return 0; }
u32 (*arch_gettimeoffset)(void) = default_arch_gettimeoffset;
#else
static inline u32 get_arch_timeoffset(void) { return 0; }
static inline u32 arch_gettimeoffset(void) { return 0; }
#endif
static inline s64 timekeeping_get_ns(struct timekeeper *tk)
@ -182,7 +176,7 @@ static inline s64 timekeeping_get_ns(struct timekeeper *tk)
nsec >>= tk->shift;
/* If arch requires, add in get_arch_timeoffset() */
return nsec + get_arch_timeoffset();
return nsec + arch_gettimeoffset();
}
static inline s64 timekeeping_get_ns_raw(struct timekeeper *tk)
@ -202,7 +196,7 @@ static inline s64 timekeeping_get_ns_raw(struct timekeeper *tk)
nsec = clocksource_cyc2ns(cycle_delta, clock->mult, clock->shift);
/* If arch requires, add in get_arch_timeoffset() */
return nsec + get_arch_timeoffset();
return nsec + arch_gettimeoffset();
}
static RAW_NOTIFIER_HEAD(pvclock_gtod_chain);
@ -282,7 +276,7 @@ static void timekeeping_forward_now(struct timekeeper *tk)
tk->xtime_nsec += cycle_delta * tk->mult;
/* If arch requires, add in get_arch_timeoffset() */
tk->xtime_nsec += (u64)get_arch_timeoffset() << tk->shift;
tk->xtime_nsec += (u64)arch_gettimeoffset() << tk->shift;
tk_normalize_xtime(tk);