linux-kernel - [PATCH] debug: Introduce a dev

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Date:	Fri, 19 Sep 2008 21:07:33 -0700
From:	Arjan van de Ven <arjan@...radead.org>
To:	akpm@...ux-foundation.org
Cc:	linux-kernel@...r.kernel.org, greg@...ah.com
Subject: [PATCH] debug: Introduce a dev_WARN() function


From: Arjan van de Ven <arjan@...ux.intel.com>
Date: Fri, 19 Sep 2008 21:03:06 -0700
Subject: [PATCH] debug: Introduce a dev_WARN() function

in the line of dev_printk(), this patch introduces a dev_WARN() macro,
that takes a struct device and then a printk format/args set of arguments.
Unlike dev_printk(), the effect is that of WARN() in that a full warning
message (including filename/line, module list, versions and a backtrace)
is printed in addition to the device name and the arguments.

Signed-off-by: Arjan van de Ven <arjan@...ux.intel.com>
---
 include/linux/device.h |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/include/linux/device.h b/include/linux/device.h
index 4d8372d..2f9cdfa 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -539,6 +539,9 @@ extern const char *dev_driver_string(const struct device *dev);
 #define dev_info(dev, format, arg...)		\
 	dev_printk(KERN_INFO , dev , format , ## arg)
 
+#define dev_WARN(dev, format, arg...) \
+	WARN(1, "Device: %s\n" format, dev_driver_string(dev), ## arg)
+
 #ifdef DEBUG
 #define dev_dbg(dev, format, arg...)		\
 	dev_printk(KERN_DEBUG , dev , format , ## arg)
-- 
1.5.5.1


-- 
Arjan van de Ven 	Intel Open Source Technology Centre
For development, discussion and tips for power savings, 
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