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 BEF32C433FE for ; Thu, 3 Mar 2022 22:06:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236754AbiCCWHU (ORCPT ); Thu, 3 Mar 2022 17:07:20 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51576 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236728AbiCCWHO (ORCPT ); Thu, 3 Mar 2022 17:07:14 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4C60D171ECF for ; Thu, 3 Mar 2022 14:06:27 -0800 (PST) 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 D40D161D9B for ; Thu, 3 Mar 2022 22:06:26 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3DAC4C340EF; Thu, 3 Mar 2022 22:06:26 +0000 (UTC) Received: from rostedt by gandalf.local.home with local (Exim 4.95) (envelope-from ) id 1nPtab-00ESWM-BK; Thu, 03 Mar 2022 17:06:25 -0500 Message-ID: <20220303220625.186988045@goodmis.org> User-Agent: quilt/0.66 Date: Thu, 03 Mar 2022 17:05:31 -0500 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Ingo Molnar , Andrew Morton , Joel Fernandes , Peter Zijlstra , Masami Hiramatsu , Tom Zanussi Subject: [PATCH 1/4 v3] tracing: Allow custom events to be added to the tracefs directory References: <20220303220530.058538533@goodmis.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Steven Rostedt (Google)" Allow custom events to be added to the events directory in the tracefs file system. For example, a module could be installed that attaches to an event and wants to be enabled and disabled via the tracefs file system. It would use trace_add_event_call() to add the event to the tracefs directory, and trace_remove_event_call() to remove it. Make both those functions EXPORT_SYMBOL_GPL(). Signed-off-by: Steven Rostedt (Google) --- kernel/trace/trace_events.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c index 3147614c1812..38afd66d80e3 100644 --- a/kernel/trace/trace_events.c +++ b/kernel/trace/trace_events.c @@ -2758,6 +2758,7 @@ int trace_add_event_call(struct trace_event_call *call) mutex_unlock(&trace_types_lock); return ret; } +EXPORT_SYMBOL_GPL(trace_add_event_call); /* * Must be called under locking of trace_types_lock, event_mutex and @@ -2819,6 +2820,7 @@ int trace_remove_event_call(struct trace_event_call *call) return ret; } +EXPORT_SYMBOL_GPL(trace_remove_event_call); #define for_each_event(event, start, end) \ for (event = start; \ -- 2.34.1