linux-kernel - [PATCH] kernel/events: Add a missing prototype for arch_perf_update

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Message-Id: <20200109131351.9468-1-b.thiel@posteo.de>
Date:   Thu,  9 Jan 2020 14:13:51 +0100
From:   Benjamin Thiel <b.thiel@...teo.de>
To:     X86 ML <x86@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Benjamin Thiel <b.thiel@...teo.de>
Subject: [PATCH] kernel/events: Add a missing prototype for arch_perf_update_userpage()

... in order to fix a -Wmissing-prototype warning.

No functional changes.

Signed-off-by: Benjamin Thiel <b.thiel@...teo.de>
---
 include/linux/perf_event.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 6d4c22aee384..de3874271814 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -1544,4 +1544,7 @@ int perf_event_exit_cpu(unsigned int cpu);
 #define perf_event_exit_cpu	NULL
 #endif
 
+void __weak arch_perf_update_userpage(
+	struct perf_event *event, struct perf_event_mmap_page *userpg, u64 now);
+
 #endif /* _LINUX_PERF_EVENT_H */
-- 
2.17.1