diff options
| -rw-r--r-- | include/linux/netdevice.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index cdf53a8d9ff..a51228ac933 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -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 */ |