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netdevice.h: Add netdev_printk helpers like dev_printk 

These netdev_printk routines take a struct net_device * and emit
dev_printk logging messages adding "%s: " ... netdev->dev.parent
to the dev_printk format and arguments.

This can create some uniformity in the output message log.

These helpers should not be used until a successful alloc_netdev.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Joe Perches 2010-02-09 11:49:47 +00:00 committed by David S. Miller
parent 21809fafa0
commit 571ba42303
1 changed files with 71 additions and 0 deletions
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71
include/linux/netdevice.h
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@ -2095,6 +2095,77 @@ static inline u32 dev_ethtool_get_flags(struct net_device *dev)
return 0;
return dev->ethtool_ops->get_flags(dev);
}
/* Logging, debugging and troubleshooting/diagnostic helpers. */
/* netdev_printk helpers, similar to dev_printk */
static inline const char *netdev_name(const struct net_device *dev)
{
if (dev->reg_state != NETREG_REGISTERED)
return "(unregistered net_device)";
return dev->name;
}
#define netdev_printk(level, netdev, format, args...) \
dev_printk(level, (netdev)->dev.parent, \
"%s: " format, \
netdev_name(netdev), ##args)
#define netdev_emerg(dev, format, args...) \
netdev_printk(KERN_EMERG, dev, format, ##args)
#define netdev_alert(dev, format, args...) \
netdev_printk(KERN_ALERT, dev, format, ##args)
#define netdev_crit(dev, format, args...) \
netdev_printk(KERN_CRIT, dev, format, ##args)
#define netdev_err(dev, format, args...) \
netdev_printk(KERN_ERR, dev, format, ##args)
#define netdev_warn(dev, format, args...) \
netdev_printk(KERN_WARNING, dev, format, ##args)
#define netdev_notice(dev, format, args...) \
netdev_printk(KERN_NOTICE, dev, format, ##args)
#define netdev_info(dev, format, args...) \
netdev_printk(KERN_INFO, dev, format, ##args)
#if defined(DEBUG)
#define netdev_dbg(__dev, format, args...) \
netdev_printk(KERN_DEBUG, __dev, format, ##args)
#elif defined(CONFIG_DYNAMIC_DEBUG)
#define netdev_dbg(__dev, format, args...) \
do { \
dynamic_dev_dbg((__dev)->dev.parent, "%s: " format, \
netdev_name(__dev), ##args); \
} while (0)
#else
#define netdev_dbg(__dev, format, args...) \
({ \
if (0) \
netdev_printk(KERN_DEBUG, __dev, format, ##args); \
0; \
})
#endif
#if defined(VERBOSE_DEBUG)
#define netdev_vdbg netdev_dbg
#else
#define netdev_vdbg(dev, format, args...) \
({ \
if (0) \
netdev_printk(KERN_DEBUG, dev, format, ##args); \
0; \
})
#endif
/*
* netdev_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 netdev_WARN(dev, format, args...) \
WARN(1, "netdevice: %s\n" format, netdev_name(dev), ##args);
#endif /* __KERNEL__ */
#endif /* _LINUX_NETDEVICE_H */