linux-kernel - [PATCH -mm 2/5] RapidIO: Add debug configuration option

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Date:	Mon,  3 May 2010 11:45:55 -0400
From:	Alexandre Bounine <alexandre.bounine@....com>
To:	akpm@...ux-foundation.org
Cc:	linux-kernel@...r.kernel.org,
	Alexandre Bounine <alexandre.bounine@....com>,
	Matt Porter <mporter@...nel.crashing.org>,
	Li Yang <leoli@...escale.com>,
	Kumar Gala <galak@...nel.crashing.org>,
	Thomas Moll <thomas.moll@...go.com>
Subject: [PATCH -mm 2/5] RapidIO: Add debug configuration option

Add debug configuration option for RapidIO subsystem.

Signed-off-by: Alexandre Bounine <alexandre.bounine@....com>
Cc: Matt Porter <mporter@...nel.crashing.org>
Cc: Li Yang <leoli@...escale.com>
Cc: Kumar Gala <galak@...nel.crashing.org>
Cc: Thomas Moll <thomas.moll@...go.com>
---
 drivers/rapidio/Kconfig           |   11 +++++++++++
 drivers/rapidio/Makefile          |    4 ++++
 drivers/rapidio/switches/Makefile |    4 ++++
 3 files changed, 19 insertions(+), 0 deletions(-)

diff --git a/drivers/rapidio/Kconfig b/drivers/rapidio/Kconfig
index bcb5c20..070211a 100644
--- a/drivers/rapidio/Kconfig
+++ b/drivers/rapidio/Kconfig
@@ -21,3 +21,14 @@ config RAPIDIO_ENABLE_RX_TX_PORTS
 	  than Maintenance transfers.
 
 source "drivers/rapidio/switches/Kconfig"
+
+config RAPIDIO_DEBUG
+	bool "RapidIO subsystem debug messages"
+	depends on RAPIDIO
+	help
+	  Say Y here if you want the RapidIO subsystem to produce a bunch of
+	  debug messages to the system log. Select this if you are having a
+	  problem with the RapidIO subsystem and want to see more of what is
+	  going on.
+
+	  If you are unsure about this, say N here.
diff --git a/drivers/rapidio/Makefile b/drivers/rapidio/Makefile
index 7c0e181..b6139fe 100644
--- a/drivers/rapidio/Makefile
+++ b/drivers/rapidio/Makefile
@@ -4,3 +4,7 @@
 obj-y += rio.o rio-access.o rio-driver.o rio-scan.o rio-sysfs.o
 
 obj-$(CONFIG_RAPIDIO)		+= switches/
+
+ifeq ($(CONFIG_RAPIDIO_DEBUG),y)
+EXTRA_CFLAGS += -DDEBUG
+endif
diff --git a/drivers/rapidio/switches/Makefile b/drivers/rapidio/switches/Makefile
index 0fece0e..fe4adc3 100644
--- a/drivers/rapidio/switches/Makefile
+++ b/drivers/rapidio/switches/Makefile
@@ -6,3 +6,7 @@ obj-$(CONFIG_RAPIDIO_TSI57X)	+= tsi57x.o
 obj-$(CONFIG_RAPIDIO_CPS_XX)	+= idtcps.o
 obj-$(CONFIG_RAPIDIO_TSI568)	+= tsi568.o
 obj-$(CONFIG_RAPIDIO_TSI500)	+= tsi500.o
+
+ifeq ($(CONFIG_RAPIDIO_DEBUG),y)
+EXTRA_CFLAGS += -DDEBUG
+endif
-- 
1.7.0.5

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