Introduce and use printk pointer extension %pV

Recursive printk can reduce the total image size of an x86 defconfig about 1% 
by reducing duplicated KERN_<level> strings and centralizing the functions
used by macros in new separate functions.

Joe Perches (4):
  vsprintf: Recursive vsnprintf: Add "%pV", struct va_format
  device.h drivers/base/core.c Convert dev_<level> logging macros to functions
  netdevice.h net/core/dev.c: Convert netdev_<level> logging macros to functions
  netdevice.h: Change netif_<level> macros to call netdev_<level> functions

 drivers/base/core.c       |   64 +++++++++++++++++++++++++
 include/linux/device.h    |  112 ++++++++++++++++++++++++++++++++++----------
 include/linux/kernel.h    |    5 ++
 include/linux/netdevice.h |   56 ++++++++++++----------
 lib/vsprintf.c            |    9 ++++
 net/core/dev.c            |   62 +++++++++++++++++++++++++
 6 files changed, 256 insertions(+), 52 deletions(-)

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