tracing: Add missing forward declaration

Without this forward declaration compile may fail if this header is
included only for registering other probe event without struct
pool_workqueue.

Link: http://lkml.kernel.org/r/20180416023626.139915-1-cwahbong@google.com

Reviewed-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Ahbong Chang <cwahbong@google.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
Ahbong Chang 2018-04-16 10:36:25 +08:00 committed by Steven Rostedt (VMware)
parent 60cc43fc88
commit 1cdae042fc

View file

@ -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