linux-kernel - [PATCH v1 2/2] ASoC: trace: track dapm type in snd_soc_dapm

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Date:   Thu, 9 Aug 2018 10:43:00 +0800
From:   "Liu, Changcheng" <changcheng.liu@...el.com>
To:     broonie@...nsource.wolfsonmicro.com, rostedt@...dmis.org,
        mingo@...hat.com
Cc:     linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
        changcheng.liu@...el.com
Subject: [PATCH v1 2/2] ASoC: trace: track dapm type in snd_soc_dapm_widget

ASoC: trace: track dapm type in snd_soc_dapm_widget

Track snd_soc_dapm_widget:id which is used as dapm
sequence index in dapm_down_seq/dapm_up_seq. It's
useful for checking dapm seq after tracking it.

Signed-off-by: Liu Changcheng <changcheng.liu@...el.com>

diff --git a/include/trace/events/asoc.h b/include/trace/events/asoc.h
index bf17edc..aa08a0b 100644
--- a/include/trace/events/asoc.h
+++ b/include/trace/events/asoc.h
@@ -92,16 +92,18 @@ DECLARE_EVENT_CLASS(snd_soc_dapm_widget,
 
 	TP_STRUCT__entry(
 		__string(	name,	w->name		)
+		__field(	int,	id		)
 		__field(	int,	val		)
 	),
 
 	TP_fast_assign(
 		__assign_str(name, w->name);
+		__entry->id= (int)w->id;
 		__entry->val = val;
 	),
 
-	TP_printk("widget=%s val=%d", __get_str(name),
-		__entry->val)
+	TP_printk("widget=%s dapm_id=%d val=%d", __get_str(name),
+		__entry->id, __entry->val)
 );
 
 DEFINE_EVENT(snd_soc_dapm_widget, snd_soc_dapm_widget_power,
-- 
2.7.4