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SubjectRe: [PATCH 2/2] ftrace: Output REC->var instead of __entry->varfor trace format
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* From: "Ingo Molnar" <mingo@elte.hu>
> * Zhaolei <zhaolei@cn.fujitsu.com> wrote:
>
>> print fmt: "irq=%d return=%s", __entry->irq, __entry->ret ? \"handled\" : \"unhandled\"
>>
>> "__entry" should be convert to "REC" by __stringify() macro.
>>
>> Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
>> ---
>> kernel/trace/trace_events_stage_2.h | 4 ++--
>> 1 files changed, 2 insertions(+), 2 deletions(-)
>
> good fix, but it is causing build trouble when applied to latest
> tip/master:
>
> include/trace/sched_event_types.h:257:1: error: macro "__stringify"
> passed 3 arguments, but takes just 1
Hello, Ingo

I tested this patch before send, but haven't see this error.
env is: gcc version 4.1.2 20070626 (Red Hat 4.1.2-14)

This patch need on top of my previous one:
[PATCH 1/2] Make __stringify support variable argument macro
Maybe this is the reason.

Thanks
Zhaolei

>
> see: http://people.redhat.com/mingo/tip.git/README
>
> Ingo
>
>
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