From nobody Mon Apr 6 13:28:23 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AD7F6C54EE9 for ; Tue, 27 Sep 2022 16:02:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232975AbiI0QC4 (ORCPT ); Tue, 27 Sep 2022 12:02:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40944 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232367AbiI0QBr (ORCPT ); Tue, 27 Sep 2022 12:01:47 -0400 Received: from sin.source.kernel.org (sin.source.kernel.org [145.40.73.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BB70FD98C2; Tue, 27 Sep 2022 09:01:44 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id EAF27CE19D1; Tue, 27 Sep 2022 16:01:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 48BE2C43470; Tue, 27 Sep 2022 16:01:41 +0000 (UTC) Received: from rostedt by gandalf.local.home with local (Exim 4.96) (envelope-from ) id 1odD2p-00G2y1-2g; Tue, 27 Sep 2022 12:02:51 -0400 Message-ID: <20220927160251.443413557@goodmis.org> User-Agent: quilt/0.66 Date: Tue, 27 Sep 2022 12:02:35 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Daniel Bristot de Oliveira , Ingo Molnar , Tom Zanussi , Linyu Yuan , stable@vger.kernel.org, "Masami Hiramatsu (Google)" , Tao Chen Subject: [for-next][PATCH 19/20] tracing/eprobe: Fix alloc event dir failed when event name no set References: <20220927160216.349640304@goodmis.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Tao Chen The event dir will alloc failed when event name no set, using the command: "echo "e:esys/ syscalls/sys_enter_openat file=3D\$filename:string" >> dynamic_events" It seems that dir name=3D"syscalls/sys_enter_openat" is not allowed in debugfs. So just use the "sys_enter_openat" as the event name. Link: https://lkml.kernel.org/r/1664028814-45923-1-git-send-email-chentao.k= ernel@linux.alibaba.com Cc: Ingo Molnar Cc: Tom Zanussi Cc: Linyu Yuan Cc: Tao Chen Signed-off-by: Tao Chen Signed-off-by: Steven Rostedt (Google) --- kernel/trace/trace_eprobe.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/kernel/trace/trace_eprobe.c b/kernel/trace/trace_eprobe.c index 78299d3724a2..c08bde9871ec 100644 --- a/kernel/trace/trace_eprobe.c +++ b/kernel/trace/trace_eprobe.c @@ -1039,8 +1039,7 @@ static int __trace_eprobe_create(int argc, const char= *argv[]) } =20 if (!event) { - strscpy(buf1, argv[1], MAX_EVENT_NAME_LEN); - sanitize_event_name(buf1); + strscpy(buf1, sys_event, MAX_EVENT_NAME_LEN); event =3D buf1; } =20 --=20 2.35.1