From: Kyle Huey <me@kylehuey.com>
Date: Fri, 12 Apr 2024 01:50:14 +0000 (-0700)
Subject: perf/bpf: Create bpf_overflow_handler() stub for !CONFIG_BPF_SYSCALL
X-Git-Tag: v6.10-rc1~210^2~11
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=924d934393f98fa6a41d6ea27352faf79c2bbaf6;p=thirdparty%2Fkernel%2Flinux.git

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
---

diff --git a/kernel/events/core.c b/kernel/events/core.c
index ca0a90648fe6f..d3f3f552e1932 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)