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 X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 42EDBC4708F for ; Wed, 2 Jun 2021 08:01:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 25D01610C8 for ; Wed, 2 Jun 2021 08:01:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232312AbhFBIDf (ORCPT ); Wed, 2 Jun 2021 04:03:35 -0400 Received: from smtp2.axis.com ([195.60.68.18]:45283 "EHLO smtp2.axis.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229471AbhFBIDX (ORCPT ); Wed, 2 Jun 2021 04:03:23 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=axis.com; q=dns/txt; s=axis-central1; t=1622620901; x=1654156901; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=aRxnb2ikeGzULhXo8gk9aFzoMTGwb4WG0MFMLqu7EUE=; b=BBDZPO1sRZLY5DCKe7LbC5DQ/msGzMREIK3CkO/Jj2U/JLi1YwBhAzgm l1AE8xdTvypBERaRNTjdg05HQCcOrgtHNnFLHxjamUjvdY1DNjMT+t/Nu 2vLmhD0ADVp0eGCCo9IgPmSlLaQPug5rJzEls5NMdjrEY9cIeMCjjE94i VHNmWPi4xQ7asYfM1rc+twCGxzAyy4A+ohm+/pXFHtvu/kHeDEbeirnym GiJ+aOT9fi4dy898MPf02ONH1fRaotwGr/TYim32ItMwBAg3wUwwCs9jh vrDXxlo4IjLLiMsUN+kWd0ZWYaeOkpgpV/WfY7u0IP3b7A9ure5GdVQ83 g==; From: Vincent Whitchurch To: Steven Rostedt , Ingo Molnar CC: , Vincent Whitchurch , Subject: [PATCH] tracing: Export tracing_start() and tracing_stop() Date: Wed, 2 Jun 2021 10:01:18 +0200 Message-ID: <20210602080118.21627-1-vincent.whitchurch@axis.com> X-Mailer: git-send-email 2.28.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tracing_stop() is very useful during hands-on debugging for getting the trace to stop exactly when the problem is detected. Export this to modules. Personally, I haven't yet found the need to use tracing_start() from code since I usually start tracing via tracefs, but export that too for symmetry since it may have its uses together with tracing_stop(). Signed-off-by: Vincent Whitchurch --- kernel/trace/trace.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index a21ef9cd2aae..5fa36f0705b7 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -2301,6 +2301,7 @@ void tracing_start(void) out: raw_spin_unlock_irqrestore(&global_trace.start_lock, flags); } +EXPORT_SYMBOL_GPL(tracing_start); static void tracing_start_tr(struct trace_array *tr) { @@ -2366,6 +2367,7 @@ void tracing_stop(void) out: raw_spin_unlock_irqrestore(&global_trace.start_lock, flags); } +EXPORT_SYMBOL_GPL(tracing_stop); static void tracing_stop_tr(struct trace_array *tr) { -- 2.28.0