Two cleanups to drivers/base/memory as below.

PATCH[1] Improves add_boot_memory_block() by using for_each_present_section_nr()
         and droping @section_count
PATCH[2] Corrects the comments to match with 'struct memory_group'

Changelog
=========
v3:
  * Combine PATCH[v2 1/3] with PATCH[v2 2/3] to be PATCH[v3 1/2]  (David)
  * Pick up acks from David and Oscar
v2:
  * Expose for_each_present_section_nr() so that it can be used
    in add_boot_memory_block()                                    (Andrew)

Gavin Shan (2):
  drivers/base/memory: Improve add_boot_memory_block()
  drivers/base/memory: Correct the field name in the header

 drivers/base/memory.c  | 17 ++++++++---------
 include/linux/memory.h |  2 +-
 include/linux/mmzone.h |  5 +++++
 mm/sparse.c            |  5 -----
 4 files changed, 14 insertions(+), 15 deletions(-)

-- 
2.48.1