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rtc: remove and clarify unneeded externs

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When CONFIG_HPET_EMULATE_RTC is defined the external declaration of
hpet_rtc_interrupt is redundant due to the inclusion of hpet.h.

When !CONFIG_HPET_EMULATE_RTC we make it clear that hpet_rtc_interrupt is
not used by defining it to return zero.

Signed-off-by: Carlos R. Mafra <crmafra@ift.unesp.br>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Carlos R. Mafra 2008-07-23 21:30:40 -07:00 committed by Linus Torvalds
parent 02bb584f3b
commit c68d07b2da
2 changed files with 4 additions and 3 deletions
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2
drivers/char/rtc.c
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@ -121,8 +121,6 @@ static irqreturn_t hpet_rtc_interrupt(int irq, void *dev_id)
return 0; return 0;
} }
#endif #endif
#else
extern irqreturn_t hpet_rtc_interrupt(int irq, void *dev_id);
#endif #endif
/* /*

5
drivers/rtc/rtc-cmos.c
View File

@ -52,7 +52,10 @@
#define hpet_rtc_timer_init() do { } while (0) #define hpet_rtc_timer_init() do { } while (0)
#define hpet_register_irq_handler(h) 0 #define hpet_register_irq_handler(h) 0
#define hpet_unregister_irq_handler(h) do { } while (0) #define hpet_unregister_irq_handler(h) do { } while (0)
extern irqreturn_t hpet_rtc_interrupt(int irq, void *dev_id); static irqreturn_t hpet_rtc_interrupt(int irq, void *dev_id)
{
return 0;
}
#endif #endif
struct cmos_rtc { struct cmos_rtc {