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SubjectRe: [PATCH] perf_event: fix compile error


Ingo Molnar wrote:
> * 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.
>

Hi Ingo,

I have try this way but the error still exists :-(

Thanks,
Xiao


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