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    SubjectRe: [PATCH 2/2] ftrace: Output REC->var instead of __entry->varfor trace format
    Date
    * 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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