From: Ben Hutchings <ben@decadent.org.uk>
Date: Sun, 27 Jul 2014 02:14:39 +0000 (+0100)
Subject: sfc: Use __iowrite64_copy instead of a slightly different local function
X-Git-Tag: omap-for-v3.17/fixes-against-rc2~149^2~69
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4984c23735132790e8f2dfdd35849dba3bd7264f;p=pandora-kernel.git

sfc: Use __iowrite64_copy instead of a slightly different local function

__iowrite64_copy() isn't quite the same as efx_memcpy_64(), but
it looks close enough:

- The length is in units of qwords not bytes
- It never byte-swaps, but that doesn't make a difference now as PIO
  is only enabled for x86_64
- It doesn't include any memory barriers, but that's OK as there is a
  barrier just before pushing the doorbell
- mlx4_en uses it for the same purpose

Compile-tested only.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Acked-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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