Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit e6139662 authored by Arjan van de Ven's avatar Arjan van de Ven Committed by Greg Kroah-Hartman
Browse files

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: default avatarArjan van de Ven <arjan@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent b31ca3f5

include/linux/device.h

+8 −0
Original line number Original line Diff line number Diff line
@@ -570,6 +570,14 @@ extern const char *dev_driver_string(const struct device *dev); 
	({ if (0) dev_printk(KERN_DEBUG, dev, format, ##arg); 0; })

	({ if (0) dev_printk(KERN_DEBUG, dev, format, ##arg); 0; })

#endif

#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. */

/* Create alias, so I can be autoloaded. */

#define MODULE_ALIAS_CHARDEV(major,minor) \

#define MODULE_ALIAS_CHARDEV(major,minor) \

	MODULE_ALIAS("char-major-" __stringify(major) "-" __stringify(minor))

	MODULE_ALIAS("char-major-" __stringify(major) "-" __stringify(minor))