linux-kernel - [tip: perf/urgent] kernel/events: Add a missing prototype for arch_perf_update

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Date:   Wed, 29 Jan 2020 11:32:55 -0000
From:   "tip-bot2 for Benjamin Thiel" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Benjamin Thiel <b.thiel@...teo.de>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>, x86 <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [tip: perf/urgent] kernel/events: Add a missing prototype for
 arch_perf_update_userpage()

The following commit has been merged into the perf/urgent branch of tip:

Commit-ID:     f1ec3a517b4352e78dbef6b1e591f43202ecb3fe
Gitweb:        https://git.kernel.org/tip/f1ec3a517b4352e78dbef6b1e591f43202ecb3fe
Author:        Benjamin Thiel <b.thiel@...teo.de>
AuthorDate:    Thu, 09 Jan 2020 14:13:51 +01:00
Committer:     Ingo Molnar <mingo@...nel.org>
CommitterDate: Tue, 28 Jan 2020 21:26:44 +01:00

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>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Signed-off-by: Ingo Molnar <mingo@...nel.org>
Link: https://lkml.kernel.org/r/20200109131351.9468-1-b.thiel@posteo.de
---
 include/linux/perf_event.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 6d4c22a..52928e0 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -1544,4 +1544,8 @@ int perf_event_exit_cpu(unsigned int cpu);
 #define perf_event_exit_cpu	NULL
 #endif
 
+extern void __weak arch_perf_update_userpage(struct perf_event *event,
+					     struct perf_event_mmap_page *userpg,
+					     u64 now);
+
 #endif /* _LINUX_PERF_EVENT_H */