Merge branch 'hns3-next'

Huazhong Tan says:

====================
code optimizations & bugfixes for HNS3 driver

This patch-set includes code optimizations and bugfixes for the HNS3
ethernet controller driver.

[patch 1/11 - 3/11] fixes some bugs about the IO path

[patch 4/11 - 6/11] includes some optimization and bugfixes
about mailbox handling

[patch 7/11 - 11/11] adds misc code optimizations and bugfixes.

Change log:
V2->V3: fixes comments from Neil Horman, removes [patch 8/12]
V1->V2: adds modification on [patch 8/12]
====================

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