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Date: Fri, 12 Apr 2024 10:03:26 -0000
From: "tip-bot2 for Kyle Huey" <tip-bot2@linutronix.de>
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Subject: [tip: perf/core] perf/bpf: Create bpf_overflow_handler() stub for
 !CONFIG_BPF_SYSCALL
Cc: Kyle Huey <khuey@kylehuey.com>, Ingo Molnar <mingo@kernel.org>,
 x86@kernel.org, linux-kernel@vger.kernel.org
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The following commit has been merged into the perf/core branch of tip:

Commit-ID:     924d934393f98fa6a41d6ea27352faf79c2bbaf6
Gitweb:        https://git.kernel.org/tip/924d934393f98fa6a41d6ea27352faf79c2bbaf6
Author:        Kyle Huey <me@kylehuey.com>
AuthorDate:    Thu, 11 Apr 2024 18:50:14 -07:00
Committer:     Ingo Molnar <mingo@kernel.org>
CommitterDate: Fri, 12 Apr 2024 11:49:48 +02:00

perf/bpf: Create bpf_overflow_handler() stub for !CONFIG_BPF_SYSCALL

This will allow __perf_event_overflow() (which is independent of
CONFIG_BPF_SYSCALL) to call bpf_overflow_handler().

Signed-off-by: Kyle Huey <khuey@kylehuey.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20240412015019.7060-3-khuey@kylehuey.com
---
 kernel/events/core.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index ca0a906..d3f3f55 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -9643,6 +9643,12 @@ static void perf_event_free_bpf_handler(struct perf_event *event)
 	bpf_prog_put(prog);
 }
 #else
+static void bpf_overflow_handler(struct perf_event *event,
+				 struct perf_sample_data *data,
+				 struct pt_regs *regs)
+{
+}
+
 static int perf_event_set_bpf_handler(struct perf_event *event,
 				      struct bpf_prog *prog,
 				      u64 bpf_cookie)