debug: Introduce a dev_WARN() function

[linux-2.6-omap-h63xx.git] / include / linux / device.h

diff --git a/include/linux/device.h b/include/linux/device.h
index fb034461b395c6da729eddf07c74da940d5dcaa9..ec90e79f6a00e80d671ef10dfb93fe7ad99360bb 100644 (file)
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -570,6 +570,14 @@ extern const char *dev_driver_string(const struct device *dev);
        ({ if (0) dev_printk(KERN_DEBUG, dev, format, ##arg); 0; })
 #endif
 
+/*
+ * dev_WARN() acts like dev_printk(), but with the key difference
+ * of using a WARN/WARN_ON to get the message out, including the
+ * file/line information and a backtrace.
+ */
+#define dev_WARN(dev, format, arg...) \
+       WARN(1, "Device: %s\n" format, dev_driver_string(dev), ## arg);
+
 /* Create alias, so I can be autoloaded. */
 #define MODULE_ALIAS_CHARDEV(major,minor) \
        MODULE_ALIAS("char-major-" __stringify(major) "-" __stringify(minor))