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authorArjan van de Ven <arjan@linux.intel.com>2008-09-20 22:08:39 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2008-10-16 12:24:50 -0400
commite61396627f91abb855ddd8925be9172fb5871944 (patch)
treec6a05c04a4ec4b8f554ff372f559316e92112244 /include/linux/device.h
parentb31ca3f5dfc89c3f1f654b30f0760d0e2fb15e45 (diff)
debug: Introduce a dev_WARN() function
in the line of dev_printk(), this patch introduces a dev_WARN() function, 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@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include/linux/device.h')
-rw-r--r--include/linux/device.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/device.h b/include/linux/device.h
index fb034461b395..ec90e79f6a00 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -570,6 +570,14 @@ extern const char *dev_driver_string(const struct device *dev);
570 ({ if (0) dev_printk(KERN_DEBUG, dev, format, ##arg); 0; }) 570 ({ if (0) dev_printk(KERN_DEBUG, dev, format, ##arg); 0; })
571#endif 571#endif
572 572
573/*
574 * dev_WARN() acts like dev_printk(), but with the key difference
575 * of using a WARN/WARN_ON to get the message out, including the
576 * file/line information and a backtrace.
577 */
578#define dev_WARN(dev, format, arg...) \
579 WARN(1, "Device: %s\n" format, dev_driver_string(dev), ## arg);
580
573/* Create alias, so I can be autoloaded. */ 581/* Create alias, so I can be autoloaded. */
574#define MODULE_ALIAS_CHARDEV(major,minor) \ 582#define MODULE_ALIAS_CHARDEV(major,minor) \
575 MODULE_ALIAS("char-major-" __stringify(major) "-" __stringify(minor)) 583 MODULE_ALIAS("char-major-" __stringify(major) "-" __stringify(minor))