From patchwork Sun Jun 4 02:29:00 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Masami Hiramatsu (Google)" X-Patchwork-Id: 102930 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:994d:0:b0:3d9:f83d:47d9 with SMTP id k13csp1944098vqr; Sat, 3 Jun 2023 19:57:47 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ52XFGq9CvxjgGgoJ6M+W7GvbEADsP5fXNrKGf++SNe6uq7TvXB1PYrQH4/YWuQfTLXX+Dm X-Received: by 2002:a05:6830:134b:b0:6af:a471:1aa7 with SMTP id r11-20020a056830134b00b006afa4711aa7mr6874497otq.21.1685847467139; Sat, 03 Jun 2023 19:57:47 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1685847467; cv=none; d=google.com; s=arc-20160816; b=TCN/cMHojz2GTYsQsmjv7S+JKxwWkZeA95WJsMjOITKSOgjNiyGdXHhzLk2tzZvcQY +FdC5m780WY5zaYgZgyweTKrkEAy72Nny5DXM7Plr4SCB4X1WqSL6h/Ek56EkEw/gB1v RD467rjjKSpbiKv5Il3Ld6lQT7ntayOQC4KTGPnmnRX8l79N86/q4j6NLmfzstljQW47 XfPU0y9HmfBGDQn3edLjM3Im3OsV+LPpz1Gf4SQrNgtzO/MP5/0azpmuRlgUQfDI1XZR Jv3bRxda7zTLI2XEx7oNbxLhgheJ+YIxPT4jH01kSNOuLtEikxcFpv8jOi78ywn7jOyE Xn0w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :user-agent:message-id:date:subject:cc:to:from:dkim-signature; bh=NybduGC7DYbp+rKAnP1p7Hy2Jo0TJyV9N/KTft/RLlE=; b=JPYlBEOFhuUpCxXgWbIIn0SAbSG83jZut4plKi/NaCGmNUA3zuFxwSUdoEQWkjo+XZ glltPPHZdfpLD29p624P5c8D8Kw+IabWjlZIrczDQ0rtLEpJGywGHTAoJwUIBKFieFhG j0O9XFLZ4b+ddm/tmYLrc+kUmj7jUSVtKUrsrGrns7smxOXON0hp2eWTLNeiX+r2D2wS VgjfnmPWNV1K7lQs4xipFfsRAGkk+lMBwQAFZERB9K7h6vkeiNl6G4tUjOnuu5I+oH1m QgzIK1xyePy6XvuE+1aLY1oci3p9hKrctEcbqShibMvxuPwn3qSm7Z5y1ow6MKZftxUG eCvA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=lbhB6zlt; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id b7-20020a637147000000b0051374678f95si3461591pgn.808.2023.06.03.19.57.33; Sat, 03 Jun 2023 19:57:47 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=lbhB6zlt; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229820AbjFDC3L (ORCPT + 99 others); Sat, 3 Jun 2023 22:29:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43018 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229485AbjFDC3K (ORCPT ); Sat, 3 Jun 2023 22:29:10 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 16249E1; Sat, 3 Jun 2023 19:29:07 -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 dfw.source.kernel.org (Postfix) with ESMTPS id 80DFA614FD; Sun, 4 Jun 2023 02:29:06 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 22AEEC433EF; Sun, 4 Jun 2023 02:29:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1685845745; bh=zfEkmBPuZFLSZLn5IlKeELqqgyZdzHiaAiDXC1xJHhg=; h=From:To:Cc:Subject:Date:From; b=lbhB6zltz8j434oatnR9CPUQMgCNKN24ZCbUpIknBpJBIkGy2mHjEcrCSme6q2c+K pbL7vAdUxslk88IUzAJCkJfvaz1zurDFpgcNCZ5PcDPthgYcyTrqg52Tp4IDfTcsxd KA+xdUOY5sy3vI9zMl7ykTac+m6Ew1X8vY83K9Kt7dKYgBw8K1zPmI5fauhn5mv2+9 oQF3Bg1zRIe5GpX7ugHh7EzLL3vIOXMq0jy2eSCeNcZZY9PZgPFLFXpuqDhnMIHRJu lVOrcT4XsK52czIprPz4d4mzaablHRcwAJFW1/5Yt+t/VxIiO2RRyzG/ixUiqPwPQn AmLDGiaBuxqVw== From: "Masami Hiramatsu (Google)" To: linux-trace-kernel@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Steven Rostedt , mhiramat@kernel.org, Florent Revest , Mark Rutland , Will Deacon , Mathieu Desnoyers , Martin KaFai Lau , bpf@vger.kernel.org, Bagas Sanjaya , kernel test robot Subject: [PATCH 1/2] tracing/probes: Fix to return NULL and keep using current argc Date: Sun, 4 Jun 2023 11:29:00 +0900 Message-ID: <168584574094.2056209.2694238431743782342.stgit@mhiramat.roam.corp.google.com> X-Mailer: git-send-email 2.41.0.rc0.172.g3f132b7071-goog User-Agent: StGit/0.19 MIME-Version: 1.0 X-Spam-Status: No, score=-4.6 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1767739193596970943?= X-GMAIL-MSGID: =?utf-8?q?1767739193596970943?= From: Masami Hiramatsu (Google) Fix to return NULL and keep using current argc when there is $argN and the BTF is not available. Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202306030940.Cej2JoUx-lkp@intel.com/ Signed-off-by: Masami Hiramatsu (Google) Reviewed-by: Steven Rostedt (Google) --- kernel/trace/trace_probe.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c index ba1c6e059b51..473e1c43bc57 100644 --- a/kernel/trace/trace_probe.c +++ b/kernel/trace/trace_probe.c @@ -1273,7 +1273,8 @@ const char **traceprobe_expand_meta_args(int argc, const char *argv[], trace_probe_log_err(0, NOSUP_BTFARG); return (const char **)params; } - return 0; + *new_argc = argc; + return NULL; } ctx->params = params; ctx->nr_params = nr_params;