Merge branch 'net-remove-kmap_atomic'

Anirudh Venkataramanan says:

====================
net: Remove uses of kmap_atomic()

kmap_atomic() is being deprecated. This little series replaces the last
few uses of kmap_atomic() in the networking subsystem.

This series triggered a suggestion [1] that perhaps the Sun Cassini,
LDOM Virtual Switch Driver and the LDOM virtual network drivers should be
removed completely. I plan to do this in a follow up patchset. For
completeness, this series still includes kmap_atomic() conversions that
apply to the above referenced drivers. If for some reason we choose to not
remove these drivers, at least they won't be using kmap_atomic() anymore.

Also, the following maintainer entries for the Chelsio driver seem to be
defunct:

  Vinay Kumar Yadav <vinay.yadav@chelsio.com>
  Rohit Maheshwari <rohitm@chelsio.com>

I can submit a follow up patch to remove these entries, but thought
maybe the folks over at Chelsio would want to look into this first.

Changes v1 -> v2:
  Use memcpy_from_page() in patches 2/6 and 4/6
  Add new patch for the thunderbolt driver
  Update commit messages and cover letter
====================

Signed-off-by: David S. Miller <davem@davemloft.net>