include/linux/netdevice.h: Add netif_printk helpers

Add macros to test a private structure for msg_enable bits
and the netif_msg_##bit to test and call netdev_printk if set

Simplifies logic in callers and adds message logging consistency

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 53 insertions, 0 deletions

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index a51228ac933..1412dde16d0 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2165,6 +2165,59 @@ do {								\
 #define netdev_WARN(dev, format, args...)                       \
         WARN(1, "netdevice: %s\n" format, netdev_name(dev), ##args);
 
+/* netif printk helpers, similar to netdev_printk */
+
+#define netif_printk(priv, type, level, dev, fmt, args...)      \
+do {                                                            \
+        if (netif_msg_##type(priv))                             \
+                netdev_printk(level, (dev), fmt, ##args);       \
+} while (0)
+
+#define netif_emerg(priv, type, dev, fmt, args...)              \
+        netif_printk(priv, type, KERN_EMERG, dev, fmt, ##args)
+#define netif_alert(priv, type, dev, fmt, args...)              \
+        netif_printk(priv, type, KERN_ALERT, dev, fmt, ##args)
+#define netif_crit(priv, type, dev, fmt, args...)               \
+        netif_printk(priv, type, KERN_CRIT, dev, fmt, ##args)
+#define netif_err(priv, type, dev, fmt, args...)                \
+        netif_printk(priv, type, KERN_ERR, dev, fmt, ##args)
+#define netif_warn(priv, type, dev, fmt, args...)               \
+        netif_printk(priv, type, KERN_WARNING, dev, fmt, ##args)
+#define netif_notice(priv, type, dev, fmt, args...)             \
+        netif_printk(priv, type, KERN_NOTICE, dev, fmt, ##args)
+#define netif_info(priv, type, dev, fmt, args...)               \
+        netif_printk(priv, type, KERN_INFO, (dev), fmt, ##args)
+
+#if defined(DEBUG)
+#define netif_dbg(priv, type, dev, format, args...)             \
+        netif_printk(priv, type, KERN_DEBUG, dev, format, ##args)
+#elif defined(CONFIG_DYNAMIC_DEBUG)
+#define netif_dbg(priv, type, netdev, format, args...)          \
+do {                                                            \
+        if (netif_msg_##type(priv))                             \
+                dynamic_dev_dbg((netdev)->dev.parent,           \
+                                "%s: " format,                  \
+                                netdev_name(netdev), ##args);   \
+} while (0)
+#else
+#define netif_dbg(priv, type, dev, format, args...)                     \
+({                                                                      \
+        if (0)                                                          \
+                netif_printk(priv, type, KERN_DEBUG, dev, format, ##args); \
+        0;                                                              \
+})
+#endif
+
+#if defined(VERBOSE_DEBUG)
+#define netif_vdbg      netdev_dbg
+#else
+#define netif_vdbg(priv, type, dev, format, args...)            \
+({                                                              \
+        if (0)                                                  \
+                netif_printk(KERN_DEBUG, dev, format, ##args);  \
+        0;                                                      \
+})
+#endif
 
 #endif /* __KERNEL__ */