From c01d4323309a90a298fd81cf3a059ee1b12be2e9 Mon Sep 17 00:00:00 2001
From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Sat, 15 May 2010 22:57:48 +0200
Subject: lockup_detector: Adapt CONFIG_PERF_EVENT_NMI to other archs

CONFIG_PERF_EVENT_NMI is something that need to be enabled from the
arch. This is fine on x86 as PERF_EVENTS is builtin but if other
archs select it, they will need to handle the PERF_EVENTS dependency.

Instead, handle the dependency in the generic layer:

- archs need to tell what they support through HAVE_PERF_EVENTS_NMI
- Enable magically PERF_EVENTS_NMI if we have PERF_EVENTS and
  HAVE_PERF_EVENTS_NMI.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
---
 arch/Kconfig | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'arch/Kconfig')

diff --git a/arch/Kconfig b/arch/Kconfig
index e5eb1337a537..89b0efb50948 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -145,4 +145,7 @@ config HAVE_HW_BREAKPOINT
 config HAVE_USER_RETURN_NOTIFIER
 	bool
 
+config HAVE_PERF_EVENTS_NMI
+	bool
+
 source "kernel/gcov/Kconfig"
-- 
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