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Subject[PATCH] perf_counter: Make set_perf_counter_pending declaration common
At present, every architecture that supports perf_counters has to
declare set_perf_counter_pending() in its arch-specific headers.
This consolidates the declarations into a single declaration in one
common place, include/linux/perf_counter.h. On powerpc, we continue
to provide a static inline definition of set_perf_counter_pending()
in the powerpc hw_irq.h.

Also, this removes from the x86 perf_counter.h the unused null
definitions of {test,clear}_perf_counter_pending.

Signed-off-by: Paul Mackerras <paulus@samba.org>
---
arch/powerpc/include/asm/hw_irq.h | 1 -
arch/powerpc/include/asm/perf_counter.h | 2 ++
arch/x86/include/asm/perf_counter.h | 5 -----
include/linux/perf_counter.h | 1 +
4 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h
index 5351237..1974cf1 100644
--- a/arch/powerpc/include/asm/hw_irq.h
+++ b/arch/powerpc/include/asm/hw_irq.h
@@ -163,7 +163,6 @@ static inline unsigned long test_perf_counter_pending(void)
return 0;
}

-static inline void set_perf_counter_pending(void) {}
static inline void clear_perf_counter_pending(void) {}
#endif /* CONFIG_PERF_COUNTERS */

diff --git a/arch/powerpc/include/asm/perf_counter.h b/arch/powerpc/include/asm/perf_counter.h
index cc7c887..b398a84 100644
--- a/arch/powerpc/include/asm/perf_counter.h
+++ b/arch/powerpc/include/asm/perf_counter.h
@@ -10,6 +10,8 @@
*/
#include <linux/types.h>

+#include <asm/hw_irq.h>
+
#define MAX_HWCOUNTERS 8
#define MAX_EVENT_ALTERNATIVES 8
#define MAX_LIMITED_HWCOUNTERS 2
diff --git a/arch/x86/include/asm/perf_counter.h b/arch/x86/include/asm/perf_counter.h
index 876ed97..5fb33e1 100644
--- a/arch/x86/include/asm/perf_counter.h
+++ b/arch/x86/include/asm/perf_counter.h
@@ -84,11 +84,6 @@ union cpuid10_edx {
#define MSR_ARCH_PERFMON_FIXED_CTR2 0x30b
#define X86_PMC_IDX_FIXED_BUS_CYCLES (X86_PMC_IDX_FIXED + 2)

-extern void set_perf_counter_pending(void);
-
-#define clear_perf_counter_pending() do { } while (0)
-#define test_perf_counter_pending() (0)
-
#ifdef CONFIG_PERF_COUNTERS
extern void init_hw_perf_counters(void);
extern void perf_counters_lapic_init(void);
diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h
index 1b3118a..eccae43 100644
--- a/include/linux/perf_counter.h
+++ b/include/linux/perf_counter.h
@@ -604,6 +604,7 @@ extern void perf_counter_task_tick(struct task_struct *task, int cpu);
extern int perf_counter_init_task(struct task_struct *child);
extern void perf_counter_exit_task(struct task_struct *child);
extern void perf_counter_free_task(struct task_struct *task);
+extern void set_perf_counter_pending(void);
extern void perf_counter_do_pending(void);
extern void perf_counter_print_debug(void);
extern void __perf_disable(void);

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