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authorFrederic Weisbecker <fweisbec@gmail.com>2009-08-27 18:17:34 +0200
committerIngo Molnar <mingo@elte.hu>2009-08-27 18:32:54 +0200
commit6c347d43eea29221a8ebab9ff9cbe7a00cddac98 (patch)
treee5afc2f493816fa1401a4ef4724167e3972cd209 /include/trace/define_trace.h
parent35dce1a99d010f3d738af4ce1b9b77302fdfe69c (diff)
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tracing: Undef TRACE_EVENT_FN between trace events headers inclusion
The recent commit: tracing/events: fix the include file dependencies fixed a file dependency problem while including more than one trace event header file. This fix undefined TRACE_EVENT after an event header macro preprocessing in order to make tracepoint.h able to correctly declare the tracepoints necessary for the next event header file. But now we also need to undefine TRACE_EVENT_FN at the end of an event header file preprocessing for the same reason. This fixes the following build error: In file included from include/trace/events/napi.h:5, from net/core/net-traces.c:28: include/linux/tracepoint.h:285:1: warning: "TRACE_EVENT_FN" redefined In file included from include/trace/define_trace.h:61, from include/trace/events/skb.h:40, from net/core/net-traces.c:27: include/trace/ftrace.h:50:1: warning: this is the location of the previous definition In file included from include/trace/events/napi.h:5, from net/core/net-traces.c:28: include/linux/tracepoint.h:285:1: warning: "TRACE_EVENT_FN" redefined In file included from include/trace/define_trace.h:61, from include/trace/events/skb.h:40, from net/core/net-traces.c:27: include/trace/ftrace.h:50:1: warning: this is the location of the previous definition Reported-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Masami Hiramatsu <mhiramat@redhat.com> Cc: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Li Zefan <lizf@cn.fujitsu.com> LKML-Reference: <20090827161732.GA7618@nowhere> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/trace/define_trace.h')
-rw-r--r--include/trace/define_trace.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/trace/define_trace.h b/include/trace/define_trace.h
index a89ed590597..2a4b3bf7403 100644
--- a/include/trace/define_trace.h
+++ b/include/trace/define_trace.h
@@ -62,6 +62,7 @@
#endif
#undef TRACE_EVENT
+#undef TRACE_EVENT_FN
#undef TRACE_HEADER_MULTI_READ
/* Only undef what we defined in this file */