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SubjectRe: [PATCH 0/3][RFC] tracing/rcu: Add _rcuidle() tracepoint to handle rcu_idle_exit() tracepoints
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On Tue, 2012-02-14 at 19:09 +0100, Witold Baryluk wrote:
> Hi,
>
> I have some problem with cpuidle tracing:
>
> https://bugzilla.kernel.org/show_bug.cgi?id=42742
>
> so I applied 3 patches from https://lkml.org/lkml/headers/2012/2/7/231
>
> > Steven Rostedt (3):
> > tracing/rcu: Add trace_##name##__rcuidle() static tracepoint for inside rcu_idle_exit() sections
> > x86/tracing: Denote the power and cpuidle tracepoints as _rcuidle()
> > cpuidle/tracing: Denote the tracepoints as being in rcu_idle_exit() section
>
> All 3 patches applied cleanly but for unknown reasons to me compilation fails:

Yeah, my testing hit this issue and I fixed it up. I pushed out my
patches to Ingo that have passed all my tests. You can get them here:

https://lkml.org/lkml/2012/2/13/528

You only need to apply patches 3,4 and 5.

-- Steve

>
> CC arch/x86/kernel/process.o
> arch/x86/kernel/process.c: In function ‘default_idle’:
> arch/x86/kernel/process.c:380:3: error: implicit declaration of function ‘trace_power_start_rcuidle’ [-Werror=implicit-function-declaration]
> arch/x86/kernel/process.c:394:3: error: implicit declaration of function ‘trace_power_end_rcuidle’ [-Werror=implicit-function-declaration]
> cc1: some warnings being treated as errors
>


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