net: print net_device reg_state in netdev_* unless it's registered

This way we'll always know in what status the device is, unless it's
running normally (i.e. NETDEV_REGISTERED).

Also, emit a warning once in case of a bad reg_state.

CC: "David S. Miller" <davem@davemloft.net>
CC: Jason Baron <jbaron@akamai.com>
CC: Eric Dumazet <edumazet@google.com>
CC: Vlad Yasevich <vyasevic@redhat.com>
CC: stephen hemminger <stephen@networkplumber.org>
CC: Jerry Chu <hkchu@google.com>
CC: Ben Hutchings <bhutchings@solarflare.com>
CC: Joe Perches <joe@perches.com>
Signed-off-by: Veaceslav Falico <vfalico@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 3 deletions

diff --git a/net/core/dev.c b/net/core/dev.c
index 239722af098d..81d61014fd9b 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -6950,12 +6950,14 @@ static int __netdev_printk(const char *level, const struct net_device *dev,
         if (dev && dev->dev.parent) {
                 r = dev_printk_emit(level[1] - '0',
                                     dev->dev.parent,
-                                    "%s %s %s: %pV",
+                                    "%s %s %s%s: %pV",
                                     dev_driver_string(dev->dev.parent),
                                     dev_name(dev->dev.parent),
-                                    netdev_name(dev), vaf);
+                                    netdev_name(dev), netdev_reg_state(dev),
+                                    vaf);
         } else if (dev) {
-                r = printk("%s%s: %pV", level, netdev_name(dev), vaf);
+                r = printk("%s%s%s: %pV", level, netdev_name(dev),
+                           netdev_reg_state(dev), vaf);
         } else {
                 r = printk("%s(NULL net_device): %pV", level, vaf);
         }