perf: Export perf_event_sysfs_show()

Required to use it in modular perf drivers.

Signed-off-by: Thomas Gleixner <[e-mail]>
Signed-off-by: Peter Zijlstra (Intel) <[e-mail]>
Cc: Andi Kleen <[e-mail]>
Cc: Arnaldo Carvalho de Melo <[e-mail]>
Cc: Borislav Petkov <[e-mail]>
Cc: Harish Chegondi <[e-mail]>
Cc: Jacob Pan <[e-mail]>
Cc: Jiri Olsa <[e-mail]>
Cc: Kan Liang <[e-mail]>
Cc: Linus Torvalds <[e-mail]>
Cc: Peter Zijlstra <[e-mail]>
Cc: Stephane Eranian <[e-mail]>
Cc: Vince Weaver <[e-mail]>
Cc: [e-mail]
Link: http://lkml.kernel.org/r/[e-mail]
Signed-off-by: Ingo Molnar <[e-mail]>

kernel/events/core.c

···
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(perf_event_sysfs_show);
 
 static int __init perf_event_sysfs_init(void)
 {