net: print a notification on device rename
net: print a notification on device rename

Currently it's done silently (from the kernel part), and thus it might be
hard to track the renames from logs.

Add a simple netdev_info() to notify the rename, but only in case the
previous name was valid.

CC: "David S. Miller" <fe08d3c717adf2ae63592e4c9aec6e3e404d8e3e@davemloft.net>
CC: Eric Dumazet <312c7d941f03386814be517ffdb3e0eb6624e275@google.com>
CC: Vlad Yasevich <cbd80080413a7dff621bc5de2d3d61903bde20a2@redhat.com>
CC: stephen hemminger <06fa905d7f2aaced6dc72e9511c71a2a51e8aead@networkplumber.org>
CC: Jerry Chu <029109f918fd79983f4074d68beabccb17fb66a9@google.com>
CC: Ben Hutchings <0672176982fbc629cc374f31a7a45ae1671abf90@solarflare.com>
CC: David Laight <6ba8d40bf791aeeb07897c08428a545bbb46dd90@ACULAB.COM>
Signed-off-by: Veaceslav Falico <13e4c2c2c15eff98ad47d02f3ccee2d83dc7015d@gmail.com>
Signed-off-by: David S. Miller <fe08d3c717adf2ae63592e4c9aec6e3e404d8e3e@davemloft.net>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs