[tip:perf/core] perf_event: Fix compile error

[tip-bot for Xiao Guangrong]

Commit-ID:  bdad0db7dbdb37d0bb3c7d0f65cd3ff599ea6ecb
Gitweb:     http://git.kernel.org/tip/bdad0db7dbdb37d0bb3c7d0f65cd3ff599ea6ecb
Author:     Xiao Guangrong <xiaoguangrong@xxxxxxxxxxxxxx>
AuthorDate: Wed, 2 Dec 2009 16:08:41 +0800
Committer:  Ingo Molnar <mingo@xxxxxxx>
CommitDate: Wed, 2 Dec 2009 09:27:01 +0100

perf_event: Fix compile error

Fix:

 cc1: warnings being treated as errors
 builtin-probe.c: In function 'cmd_probe':
 builtin-probe.c:163: error: unused variable 'fd'

Signed-off-by: Xiao Guangrong <xiaoguangrong@xxxxxxxxxxxxxx>
Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
LKML-Reference: <4B162089.8000907@xxxxxxxxxxxxxx>
[ v2: use NO_LIBDWARF instead of __used ]
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
 tools/perf/builtin-probe.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
index b5d15cf..a58e11b 100644
--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -160,7 +160,10 @@ static const struct option options[] = {
 
 int cmd_probe(int argc, const char **argv, const char *prefix __used)
 {
-	int i, j, fd, ret;
+	int i, j, ret;
+#ifndef NO_LIBDWARF
+	int fd;
+#endif
 	struct probe_point *pp;
 
 	argc = parse_options(argc, argv, options, probe_usage,
--
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