linux-kernel - [PATCH -rt] hwlat_detector: add dependence of RING

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Date:	Fri, 26 Jun 2009 15:47:26 +0800
From:	Wu Zhangjin <wuzhangjin@...il.com>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	jcm@...hat.com, Wu Zhangjin <wuzj@...ote.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>
Subject: [PATCH -rt] hwlat_detector: add dependence of RING_BUFFER

From: Wu Zhangjin <wuzj@...ote.com>

driver/misc/hwlat_detector.c needs the ring_buffer_* functions, which
are defined in kernel/trace/ring_buffer.c, so, hwlat_detector is
dependent on RING_BUFFER.

Signed-off-by: Wu Zhangjin <wuzj@...ote.com>
---
 drivers/misc/Kconfig |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 174b99e..557cbb1 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -78,7 +78,7 @@ config IBM_ASM
 
 config HWLAT_DETECTOR
 	tristate "Testing module to detect hardware-induced latencies"
-	depends on DEBUG_FS
+	depends on DEBUG_FS && RING_BUFFER
 	default m
 	---help---
 	  A simple hardware latency detector. Use this module to detect
-- 
1.6.0.4

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