linux-kernel - [PATCH] Export irq tracepoints for use by kernel modules

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Date:	Tue, 22 Apr 2014 07:24:20 -0700
From:	Drew Richardson <drew.richardson@....com>
To:	Thomas Gleixner <tglx@...utronix.de>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Joe Perches <joe@...ches.com>,
	Ben Greear <greearb@...delatech.com>,
	Christoph Hellwig <hch@...radead.org>,
	linux-kernel@...r.kernel.org, Pawel Moll <pawel.moll@....com>
Subject: [PATCH] Export irq tracepoints for use by kernel modules

After commit de7b2973903c6cc50b31ee5682a69b2219b9919d ("tracepoint:
Use struct pointer instead of name hash for reg/unreg tracepoints"),
any tracepoints used in a kernel module must be exported.

Signed-off-by: Drew Richardson <drew.richardson@....com>
Acked-by: Pawel Moll <pawel.moll@....com>
---
 kernel/softirq.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/kernel/softirq.c b/kernel/softirq.c
index b50990a5bea0..3a21a6c29406 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -30,6 +30,12 @@
 #define CREATE_TRACE_POINTS
 #include <trace/events/irq.h>
 
+EXPORT_TRACEPOINT_SYMBOL_GPL(irq_handler_entry);
+EXPORT_TRACEPOINT_SYMBOL_GPL(irq_handler_exit);
+EXPORT_TRACEPOINT_SYMBOL_GPL(softirq_entry);
+EXPORT_TRACEPOINT_SYMBOL_GPL(softirq_exit);
+EXPORT_TRACEPOINT_SYMBOL_GPL(softirq_raise);
+
 /*
    - No shared variables, all the data are CPU local.
    - If a softirq needs serialization, let it serialize itself
-- 
1.8.3.2

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