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SubjectRe: [PATCH][GIT PULL][v3.4] tracing: Fix build breakage without CONFIG_PERF_EVENTS (again)
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On Thu, 2012-04-12 at 16:25 -0400, Steven Rostedt wrote:
> diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
> index 95059f0..ff639ca 100644
> --- a/kernel/trace/trace.h
> +++ b/kernel/trace/trace.h
> @@ -836,11 +836,15 @@ extern const char *__stop___trace_bprintk_fmt[];
> filter)
> #include "trace_entries.h"
>

Looking at this patch in more depth, it may be cleaner to do:

#if defined(CONFIG_PERF_EVENTS) && defined(CONFIG_FUNCTION_TRACER)
int perf_ftrace_event_register(struct ftrace_event_call *call,
enum trace_reg type, void *data);
#else
# define perf_ftrace_event_register NULL
#endif

Mark, would you like to make the above update?

Thanks,

-- Steve


> +#ifdef CONFIG_PERF_EVENTS
> #ifdef CONFIG_FUNCTION_TRACER
> int perf_ftrace_event_register(struct ftrace_event_call *call,
> enum trace_reg type, void *data);
> #else
> #define perf_ftrace_event_register NULL
> #endif /* CONFIG_FUNCTION_TRACER */
> +#else
> +#define perf_ftrace_event_register NULL
> +#endif /* CONFIG_PERF_EVENTS */
>
> #endif /* _LINUX_KERNEL_TRACE_H */
>




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