Re: [PATCH] perf_event: fix compile error

Ingo Molnar
2009-12-02T08:17:45Z

* Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> wrote:

> 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@cn.fujitsu.com>
> ---
> tools/perf/builtin-probe.c | 3 ++-
> 1 files changed, 2 insertions(+), 1 deletions(-)
>
> diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
> index b5d15cf..64ea038 100644
> --- a/tools/perf/builtin-probe.c
> +++ b/tools/perf/builtin-probe.c
> @@ -160,7 +160,8 @@ 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;
> + int fd __used;
> struct probe_point *pp;

i think it's better to initialize it to -1 instead of turning off the
warning.

Ingo