Merge branch 'r8169-use-napi_complete_done-return-value'

Merge branch 'r8169-use-napi_complete_done-return-value'

Heiner Kallweit says:

====================
r8169: use napi_complete_done return value

Consider the return value of napi_complete_done(), this allows users to
use the gro_flush_timeout sysfs attribute as an alternative to classic
interrupt coalescing.
====================

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