Adrian Chadd e9c4d0912a [ar724x] put in explicit memory barriers now that read/write register no longer
implicitly do them.

They were removed as part of my "fix this to actually work" a few commits
ago in this file.

Tested:

* AP93, AR7240 + AR9280 PCI
2017-07-06 04:56:23 +00:00
..
2017-05-23 06:20:24 +00:00