linux-kernel - [PATCH bpf-next] perf/bpf: Fix duplicate type check

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Date: Sat, 20 Jan 2024 16:09:20 +0100
From: Florian Lehner <dev@...-flo.net>
To: bpf@...r.kernel.org
Cc: peterz@...radead.org,
	mingo@...hat.com,
	acme@...nel.org,
	mark.rutland@....com,
	alexander.shishkin@...ux.intel.com,
	jolsa@...nel.org,
	namhyung@...nel.org,
	irogers@...gle.com,
	adrian.hunter@...el.com,
	linux-perf-users@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Florian Lehner <dev@...-flo.net>
Subject: [PATCH bpf-next] perf/bpf: Fix duplicate type check

Remove the duplicate check on type and unify result.

Signed-off-by: Florian Lehner <dev@...-flo.net>
---
 kernel/events/core.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index f0f0f71213a1..5ecfa57e3b97 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -9302,10 +9302,6 @@ void perf_event_bpf_event(struct bpf_prog *prog,
 {
 	struct perf_bpf_event bpf_event;
 
-	if (type <= PERF_BPF_EVENT_UNKNOWN ||
-	    type >= PERF_BPF_EVENT_MAX)
-		return;
-
 	switch (type) {
 	case PERF_BPF_EVENT_PROG_LOAD:
 	case PERF_BPF_EVENT_PROG_UNLOAD:
@@ -9313,7 +9309,7 @@ void perf_event_bpf_event(struct bpf_prog *prog,
 			perf_event_bpf_emit_ksymbols(prog, type);
 		break;
 	default:
-		break;
+		return;
 	}
 
 	if (!atomic_read(&nr_bpf_events))
-- 
2.39.2