From mboxrd@z Thu Jan 1 00:00:00 1970 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 19DB0C6FA82 for ; Wed, 14 Sep 2022 20:48:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229617AbiINUsP (ORCPT ); Wed, 14 Sep 2022 16:48:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37360 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229503AbiINUsO (ORCPT ); Wed, 14 Sep 2022 16:48:14 -0400 Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1D1416BD62 for ; Wed, 14 Sep 2022 13:48:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1663188494; x=1694724494; h=subject:from:to:cc:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=qqFd9z0Ay6h2dsUpWd6B4jHhDdYbPVJj/DQK6umx3Vg=; b=C4le4Ewxvl3tBp9R9/qfKb+GkGg3/O/vTBvsVjucRF+M5kZiKhRAvfAw C8vp4UMtpueiokIM+vkKwVlgapXRB3ec8+/A7iS8KWMQlthiZP8CHm4+5 E36vx4trazG69c7DqNOqM2DkPMnOYTEvW2Z0wD39vHSFMpQIIlyuYjjaJ axUz8tmLFZF0h3n+x9IQllTg+627ane4oYfzL6pEwa0NZN/sN5ul1dJPM 7FhLJcxPYr5N/LYRRPzgPxVWTeqX2yo9qXcnwnlm/8a3Qu3UX6XGH8Q0F 2qoptpO60/eQPeAyNljYRsBYcuAA3dG/IDnjGrWr3dn0aH+4c6RW/4T3N A==; X-IronPort-AV: E=McAfee;i="6500,9779,10470"; a="297266817" X-IronPort-AV: E=Sophos;i="5.93,315,1654585200"; d="scan'208";a="297266817" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Sep 2022 13:48:13 -0700 X-IronPort-AV: E=Sophos;i="5.93,315,1654585200"; d="scan'208";a="617007441" Received: from djiang5-desk3.ch.intel.com ([143.182.136.137]) by orsmga002-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Sep 2022 13:48:13 -0700 Subject: [PATCH 4/7] ndctl: cxl: add common function to disable event trace From: Dave Jiang To: linux-cxl@vger.kernel.org Cc: alison.schofield@intel.com, vishal.l.verma@intel.com, ira.weiny@intel.com, bwidawsk@kernel.org, dan.j.williams@intel.com Date: Wed, 14 Sep 2022 13:48:12 -0700 Message-ID: <166318849259.3087953.6822321103087684015.stgit@djiang5-desk3.ch.intel.com> In-Reply-To: <166318836385.3087953.6809315284050736931.stgit@djiang5-desk3.ch.intel.com> References: <166318836385.3087953.6809315284050736931.stgit@djiang5-desk3.ch.intel.com> User-Agent: StGit/1.4 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-cxl@vger.kernel.org Add a common function for cxl command that disables the event trace for the instance created. Signed-off-by: Dave Jiang --- cxl/event_trace.c | 8 ++++++++ cxl/event_trace.h | 1 + 2 files changed, 9 insertions(+) diff --git a/cxl/event_trace.c b/cxl/event_trace.c index 39ca5a9c49be..50f9cc428aa7 100644 --- a/cxl/event_trace.c +++ b/cxl/event_trace.c @@ -226,3 +226,11 @@ int cxl_event_tracing_enable(struct tracefs_instance *inst, const char **systems tracefs_trace_on(inst); return 0; } + +int cxl_event_tracing_disable(struct tracefs_instance *inst) +{ + if (!tracefs_trace_is_on(inst)) + return 0; + + return tracefs_trace_off(inst); +} diff --git a/cxl/event_trace.h b/cxl/event_trace.h index b4453c393e7a..9931fb32b245 100644 --- a/cxl/event_trace.h +++ b/cxl/event_trace.h @@ -18,5 +18,6 @@ struct event_ctx { int cxl_parse_events(struct tracefs_instance *inst, struct event_ctx *ectx); int cxl_event_tracing_enable(struct tracefs_instance *inst, const char **systems); +int cxl_event_tracing_disable(struct tracefs_instance *inst); #endif