Hello Maintainers:
Please help check this patch whether OK, when you have time.
Thanks.
On 05/21/2013 05:46 PM, Chen Gang wrote:
>
> Under arm64, we will calibrate the delay loop statically using a known
> timer frequency, so delete read_current_timer(), or it will cause
> compiling issue with allmodconfig.
>
> The related error:
> ERROR: "read_current_timer" [lib/rbtree_test.ko] undefined!
> ERROR: "read_current_timer" [lib/interval_tree_test.ko] undefined!
> ERROR: "read_current_timer" [fs/ext4/ext4.ko] undefined!
> ERROR: "read_current_timer" [crypto/tcrypt.ko] undefined!
>
>
> Signed-off-by: Chen Gang <gang.c...@asianux.com>
> ---
> arch/arm64/include/asm/timex.h | 6 +++---
> arch/arm64/kernel/time.c | 6 ------
> 2 files changed, 3 insertions(+), 9 deletions(-)
>
> diff --git a/arch/arm64/include/asm/timex.h b/arch/arm64/include/asm/timex.h
> index b24a31a..81a076e 100644
> --- a/arch/arm64/include/asm/timex.h
> +++ b/arch/arm64/include/asm/timex.h
> @@ -16,14 +16,14 @@
> #ifndef __ASM_TIMEX_H
> #define __ASM_TIMEX_H
>
> +#include <asm/arch_timer.h>
> +
> /*
> * Use the current timer as a cycle counter since this is what we use for
> * the delay loop.
> */
> -#define get_cycles() ({ cycles_t c; read_current_timer(&c); c; })
> +#define get_cycles() arch_counter_get_cntvct()
>
> #include <asm-generic/timex.h>
>
> -#define ARCH_HAS_READ_CURRENT_TIMER
> -
> #endif
> diff --git a/arch/arm64/kernel/time.c b/arch/arm64/kernel/time.c
> index a551f88..03dc371 100644
> --- a/arch/arm64/kernel/time.c
> +++ b/arch/arm64/kernel/time.c
> @@ -68,12 +68,6 @@ unsigned long long notrace sched_clock(void)
> return arch_timer_read_counter() * sched_clock_mult;
> }
>
> -int read_current_timer(unsigned long *timer_value)
> -{
> - *timer_value = arch_timer_read_counter();
> - return 0;
> -}
> -
> void __init time_init(void)
> {
> u32 arch_timer_rate;
>
--
Chen Gang
Asianux Corporation
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