The sparse tool complains as follows: arch/powerpc/perf/hv-24x7.c:229:1: warning: symbol '__pcpu_scope_hv_24x7_txn_flags' was not declared. Should it be static? arch/powerpc/perf/hv-24x7.c:230:1: warning: symbol '__pcpu_scope_hv_24x7_txn_err' was not declared. Should it be static? arch/powerpc/perf/hv-24x7.c:236:1: warning: symbol '__pcpu_scope_hv_24x7_hw' was not declared. Should it be static? arch/powerpc/perf/hv-24x7.c:244:1: warning: symbol '__pcpu_scope_hv_24x7_reqb' was not declared. Should it be static? arch/powerpc/perf/hv-24x7.c:245:1: warning: symbol '__pcpu_scope_hv_24x7_resb' was not declared. Should it be static? This symbol is not used outside of hv-24x7.c, so this commit marks it static. Reported-by: Hulk Robot <hulkci@xxxxxxxxxx> Signed-off-by: Bixuan Cui <cuibixuan@xxxxxxxxxx> --- arch/powerpc/perf/hv-24x7.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/powerpc/perf/hv-24x7.c b/arch/powerpc/perf/hv-24x7.c index e5eb33255066..1816f560a465 100644 --- a/arch/powerpc/perf/hv-24x7.c +++ b/arch/powerpc/perf/hv-24x7.c @@ -226,14 +226,14 @@ static struct attribute_group event_long_desc_group = { static struct kmem_cache *hv_page_cache; -DEFINE_PER_CPU(int, hv_24x7_txn_flags); -DEFINE_PER_CPU(int, hv_24x7_txn_err); +static DEFINE_PER_CPU(int, hv_24x7_txn_flags); +static DEFINE_PER_CPU(int, hv_24x7_txn_err); struct hv_24x7_hw { struct perf_event *events[255]; }; -DEFINE_PER_CPU(struct hv_24x7_hw, hv_24x7_hw); +static DEFINE_PER_CPU(struct hv_24x7_hw, hv_24x7_hw); /* * request_buffer and result_buffer are not required to be 4k aligned, @@ -241,8 +241,8 @@ DEFINE_PER_CPU(struct hv_24x7_hw, hv_24x7_hw); * the simplest way to ensure that. */ #define H24x7_DATA_BUFFER_SIZE 4096 -DEFINE_PER_CPU(char, hv_24x7_reqb[H24x7_DATA_BUFFER_SIZE]) __aligned(4096); -DEFINE_PER_CPU(char, hv_24x7_resb[H24x7_DATA_BUFFER_SIZE]) __aligned(4096); +static DEFINE_PER_CPU(char, hv_24x7_reqb[H24x7_DATA_BUFFER_SIZE]) __aligned(4096); +static DEFINE_PER_CPU(char, hv_24x7_resb[H24x7_DATA_BUFFER_SIZE]) __aligned(4096); static unsigned int max_num_requests(int interface_version) {