linux-kernel - [PATCH 8/7] perf/bpf: Change the !CONFIG_BPF

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Date: Fri, 12 Apr 2024 11:55:00 +0200
From: Ingo Molnar <mingo@...nel.org>
To: Kyle Huey <me@...ehuey.com>
Cc: Kyle Huey <khuey@...ehuey.com>, linux-kernel@...r.kernel.org,
	Andrii Nakryiko <andrii.nakryiko@...il.com>,
	Jiri Olsa <jolsa@...nel.org>, Namhyung Kim <namhyung@...nel.org>,
	Marco Elver <elver@...gle.com>,
	Yonghong Song <yonghong.song@...ux.dev>,
	Peter Zijlstra <peterz@...radead.org>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Robert O'Callahan <robert@...llahan.org>, bpf@...r.kernel.org
Subject: [PATCH 8/7] perf/bpf: Change the !CONFIG_BPF_SYSCALL stubs to static
 inlines

Otherwise the compiler will be unhappy if they go unused,
which they do on allnoconfigs.

Cc: Kyle Huey <khuey@...ehuey.com>
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 kernel/events/core.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 2212670cbe9b..6708c1121b9f 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -9638,21 +9638,21 @@ static void perf_event_free_bpf_handler(struct perf_event *event)
 	bpf_prog_put(prog);
 }
 #else
-static int bpf_overflow_handler(struct perf_event *event,
-				struct perf_sample_data *data,
-				struct pt_regs *regs)
+static inline int bpf_overflow_handler(struct perf_event *event,
+				       struct perf_sample_data *data,
+				       struct pt_regs *regs)
 {
 	return 1;
 }
 
-static int perf_event_set_bpf_handler(struct perf_event *event,
-				      struct bpf_prog *prog,
-				      u64 bpf_cookie)
+static inline int perf_event_set_bpf_handler(struct perf_event *event,
+					     struct bpf_prog *prog,
+					     u64 bpf_cookie)
 {
 	return -EOPNOTSUPP;
 }
 
-static void perf_event_free_bpf_handler(struct perf_event *event)
+static inline void perf_event_free_bpf_handler(struct perf_event *event)
 {
 }
 #endif