linux-kernel - [PATCH v2 1/3] perf core: Make local function perf_pmu_snapshot

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Date:   Thu, 27 May 2021 11:19:45 +0800
From:   Haocheng Xie <xiehaocheng.cn@...il.com>
To:     mingo@...nel.org, acme@...nel.org,
        alexander.shishkin@...ux.intel.com, jolsa@...hat.com,
        mark.rutland@....com, mingo@...hat.com, namhyung@...nel.org,
        peterz@...radead.org
Cc:     linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        Haocheng Xie <xiehaocheng.cn@...il.com>
Subject: [PATCH v2 1/3] perf core: Make local function perf_pmu_snapshot_aux() static

Fixes the following W=1 kernel build warning:

  kernel/events/core.c:6670:6: warning: no previous prototype for 'perf_pmu_snapshot_aux' [-Wmissing-prototypes]

Signed-off-by: Haocheng Xie <xiehaocheng.cn@...il.com>
---
 kernel/events/core.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 6fee4a7..e1a80e1 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -6667,10 +6667,10 @@ static unsigned long perf_prepare_sample_aux(struct perf_event *event,
 	return data->aux_size;
 }
 
-long perf_pmu_snapshot_aux(struct perf_buffer *rb,
-			   struct perf_event *event,
-			   struct perf_output_handle *handle,
-			   unsigned long size)
+static long perf_pmu_snapshot_aux(struct perf_buffer *rb,
+                                 struct perf_event *event,
+                                 struct perf_output_handle *handle,
+                                 unsigned long size)
 {
 	unsigned long flags;
 	long ret;
-- 
2.9.5