1 files changed, 23 insertions, 3 deletions

diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index 29ff2e4cfb75..2a29f4e04bdf 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -611,20 +611,40 @@ EXPORT_SYMBOL(__dynamic_dev_dbg);
 #ifdef CONFIG_NET
 
 int __dynamic_netdev_dbg(struct _ddebug *descriptor,
-                      const struct net_device *dev, const char *fmt, ...)
+                         const struct net_device *dev, const char *fmt, ...)
 {
         struct va_format vaf;
         va_list args;
         int res;
-        char buf[PREFIX_SIZE];
 
         BUG_ON(!descriptor);
         BUG_ON(!fmt);
 
         va_start(args, fmt);
+
         vaf.fmt = fmt;
         vaf.va = &args;
-        res = __netdev_printk(dynamic_emit_prefix(descriptor, buf), dev, &vaf);
+
+        if (dev && dev->dev.parent) {
+                char buf[PREFIX_SIZE];
+                char dict[128];
+                size_t dictlen;
+
+                dictlen = create_syslog_header(dev->dev.parent,
+                                               dict, sizeof(dict));
+
+                res = printk_emit(0, 7, dictlen ? dict : NULL, dictlen,
+                                  "%s%s %s: %s: %pV",
+                                  dynamic_emit_prefix(descriptor, buf),
+                                  dev_driver_string(dev->dev.parent),
+                                  dev_name(dev->dev.parent),
+                                  netdev_name(dev), &vaf);
+        } else if (dev) {
+                res = printk(KERN_DEBUG "%s: %pV", netdev_name(dev), &vaf);
+        } else {
+                res = printk(KERN_DEBUG "(NULL net_device): %pV", &vaf);
+        }
+
         va_end(args);
 
         return res;