Messages in this thread Patch in this message | | | Date | Tue, 21 May 2013 17:46:05 +0800 | From | Chen Gang <> | Subject | [PATCH v2] arm64: kernel: compiling issue, need delete read_current_timer(). |
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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.chen@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; -- 1.7.7.6
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