From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965559AbcKWPhE (ORCPT ); Wed, 23 Nov 2016 10:37:04 -0500 Received: from mail.kernel.org ([198.145.29.136]:60348 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965364AbcKWPfe (ORCPT ); Wed, 23 Nov 2016 10:35:34 -0500 Message-Id: <20161123153529.309686434@goodmis.org> User-Agent: quilt/0.63-1 Date: Wed, 23 Nov 2016 10:35:25 -0500 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Ingo Molnar , Andrew Morton , Chunyan Zhang , Alexander Shishkin Subject: [for-next][PATCH 13/17] coresight: Mark stm_generic_packet() with notrace References: <20161123153512.923515549@goodmis.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Content-Disposition: inline; filename=0013-coresight-Mark-stm_generic_packet-with-notrace.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Chunyan Zhang If CONFIG_STM_SOURCE_FTRACE is selected, Function trace data can be writen to sink via STM, all functions that related to writing data packets to STM should be marked 'notrace' to avoid being traced by Ftrace, otherwise the program would stall into an endless loop. Link: http://lkml.kernel.org/r/1479715043-6534-4-git-send-email-zhang.chunyan@linaro.org Signed-off-by: Chunyan Zhang Acked-by: Alexander Shishkin Signed-off-by: Steven Rostedt --- drivers/hwtracing/coresight/coresight-stm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwtracing/coresight/coresight-stm.c b/drivers/hwtracing/coresight/coresight-stm.c index 49e0f1b925a5..b7543bd19c9e 100644 --- a/drivers/hwtracing/coresight/coresight-stm.c +++ b/drivers/hwtracing/coresight/coresight-stm.c @@ -406,7 +406,7 @@ static long stm_generic_set_options(struct stm_data *stm_data, return 0; } -static ssize_t stm_generic_packet(struct stm_data *stm_data, +static ssize_t notrace stm_generic_packet(struct stm_data *stm_data, unsigned int master, unsigned int channel, unsigned int packet, -- 2.10.2