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Subject[PATCH] trace: add missing forward declaration
Date
Without this forward declaration compile may fail if this header is
included only for registering other probe event without struct
pool_workqueue.

Signed-off-by: Ahbong Chang <cwahbong@google.com>
Reviewed-by: Todd Poynor <toddpoynor@google.com>
---
include/trace/events/workqueue.h | 2 ++
1 file changed, 2 insertions(+)

diff --git a/include/trace/events/workqueue.h b/include/trace/events/workqueue.h
index 2f057a494d93..9a761bc6a251 100644
--- a/include/trace/events/workqueue.h
+++ b/include/trace/events/workqueue.h
@@ -25,6 +25,8 @@ DECLARE_EVENT_CLASS(workqueue_work,
TP_printk("work struct %p", __entry->work)
);

+struct pool_workqueue;
+
/**
* workqueue_queue_work - called when a work gets queued
* @req_cpu: the requested cpu
--
2.17.0.484.g0c8726318c-goog
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