@@ -2092,6 +2092,77 @@ 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 */
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> --- include/linux/netdevice.h | 71 +++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 71 insertions(+), 0 deletions(-)