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 E2E8CC433F5 for ; Wed, 2 Mar 2022 03:28:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239338AbiCBD3K (ORCPT ); Tue, 1 Mar 2022 22:29:10 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55438 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232602AbiCBD3H (ORCPT ); Tue, 1 Mar 2022 22:29:07 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EA274B0C6B for ; Tue, 1 Mar 2022 19:28:24 -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 ams.source.kernel.org (Postfix) with ESMTPS id 30FA0B81EFF for ; Wed, 2 Mar 2022 03:28:23 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D5D0AC340EE; Wed, 2 Mar 2022 03:28:21 +0000 (UTC) Received: from rostedt by gandalf.local.home with local (Exim 4.95) (envelope-from ) id 1nPFf2-00DBjF-Re; Tue, 01 Mar 2022 22:28:20 -0500 Message-ID: <20220302032820.695071532@goodmis.org> User-Agent: quilt/0.66 Date: Tue, 01 Mar 2022 22:24:15 -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 1/2] tracing: Allow custom events to be added to the tracefs directory References: <20220302032414.503960863@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