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riscv: perf_event: Make some funciton static

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Fixes the following warning detected when running make with W=1,
../arch/riscv/kernel/perf_event.c:150:5: warning: no previous prototype for ‘riscv_map_cache_decode’ [-Wmissing-prototypes]
 int riscv_map_cache_decode(u64 config, unsigned int *type,
     ^~~~~~~~~~~~~~~~~~~~~~
../arch/riscv/kernel/perf_event.c:345:13: warning: no previous prototype for ‘riscv_base_pmu_handle_irq’ [-Wmissing-prototypes]
 irqreturn_t riscv_base_pmu_handle_irq(int irq_num, void *dev)
             ^~~~~~~~~~~~~~~~~~~~~~~~~
../arch/riscv/kernel/perf_event.c:364:6: warning: no previous prototype for ‘release_pmc_hardware’ [-Wmissing-prototypes]
 void release_pmc_hardware(void)
      ^~~~~~~~~~~~~~~~~~~~
../arch/riscv/kernel/perf_event.c:467:12: warning: no previous prototype for ‘init_hw_perf_events’ [-Wmissing-prototypes]
 int __init init_hw_perf_events(void)
            ^~~~~~~~~~~~~~~~~~~

Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
This commit is contained in:
Kefeng Wang 2020-05-07 23:04:44 +08:00 committed by Palmer Dabbelt
parent 2ef96a5bb1
commit e7b146a8bf
No known key found for this signature in database
GPG Key ID: 2E1319F35FBB1889
1 changed files with 4 additions and 4 deletions
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8
arch/riscv/kernel/perf_event.c
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@ -147,7 +147,7 @@ static int riscv_map_hw_event(u64 config)
return riscv_pmu->hw_events[config];
}
int riscv_map_cache_decode(u64 config, unsigned int *type,
static int riscv_map_cache_decode(u64 config, unsigned int *type,
unsigned int *op, unsigned int *result)
{
return -ENOENT;
@ -342,7 +342,7 @@ static void riscv_pmu_del(struct perf_event *event, int flags)
static DEFINE_MUTEX(pmc_reserve_mutex);
irqreturn_t riscv_base_pmu_handle_irq(int irq_num, void *dev)
static irqreturn_t riscv_base_pmu_handle_irq(int irq_num, void *dev)
{
return IRQ_NONE;
}
@ -361,7 +361,7 @@ static int reserve_pmc_hardware(void)
return err;
}
void release_pmc_hardware(void)
static void release_pmc_hardware(void)
{
mutex_lock(&pmc_reserve_mutex);
if (riscv_pmu->irq >= 0)
@ -464,7 +464,7 @@ static const struct of_device_id riscv_pmu_of_ids[] = {
{ /* sentinel value */ }
};
int __init init_hw_perf_events(void)
static int __init init_hw_perf_events(void)
{
struct device_node *node = of_find_node_by_type(NULL, "pmu");
const struct of_device_id *of_id;