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[MIPS] time: Delete dead cycles_per_jiffy, mips_timer_ack and null_timer_ack

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cycles_per_jiffy was only ever getting assigned and the function pointer
not being called anymore and mips_timer_ack had gotten similarly stale.  I
leave the remaining assignments unfixed as a lighthouse pointing platform
maintainers to what needs a rewrite.  These changes make null_timer_ack()
unreferenced, so delete that too.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle 2007-10-18 16:00:19 +01:00
parent 76d3a7a54c
commit 2cfa7660db
2 changed files with 0 additions and 22 deletions
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21
arch/mips/kernel/time.c
View file

@ -72,14 +72,6 @@ int update_persistent_clock(struct timespec now)
return rtc_mips_set_mmss(now.tv_sec);
}
/* how many counter cycles in a jiffy */
static unsigned long cycles_per_jiffy __read_mostly;
/*
* Null timer ack for systems not needing one (e.g. i8254).
*/
static void null_timer_ack(void) { /* nothing */ }
/*
* Null high precision timer functions for systems lacking one.
*/
@ -105,7 +97,6 @@ static cycle_t c0_hpt_read(void)
}
int (*mips_timer_state)(void);
void (*mips_timer_ack)(void);
/*
* local_timer_interrupt() does profiling and process accounting
@ -512,14 +503,6 @@ void __init time_init(void)
if (!clocksource_mips.read) {
/* No external high precision timer -- use R4k. */
clocksource_mips.read = c0_hpt_read;
if (!mips_timer_state) {
/* No external timer interrupt -- use R4k. */
mips_timer_ack = c0_timer_ack;
/* Calculate cache parameters. */
cycles_per_jiffy =
(mips_hpt_frequency + HZ / 2) / HZ;
}
}
if (!mips_hpt_frequency)
mips_hpt_frequency = calibrate_hpt();
@ -534,10 +517,6 @@ void __init time_init(void)
#endif
}
if (!mips_timer_ack)
/* No timer interrupt ack (e.g. i8254). */
mips_timer_ack = null_timer_ack;
/*
* Call board specific timer interrupt setup.
*

1
include/asm-mips/time.h
View file

@ -40,7 +40,6 @@ extern int rtc_mips_set_mmss(unsigned long);
* mips_timer_ack may be NULL if the interrupt is self-recoverable.
*/
extern int (*mips_timer_state)(void);
extern void (*mips_timer_ack)(void);
/*
* High precision timer clocksource.