netdev - Re: [PATCH net-next] sfc: Use __iowrite64_copy instead of a slightly different local function

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Message-Id: <20140729.153048.1378087192291832153.davem@davemloft.net>
Date:	Tue, 29 Jul 2014 15:30:48 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	ben@...adent.org.uk
Cc:	sshah@...arflare.com, netdev@...r.kernel.org
Subject: Re: [PATCH net-next] sfc: Use __iowrite64_copy instead of a
 slightly different local function

From: Ben Hutchings <ben@...adent.org.uk>
Date: Sun, 27 Jul 2014 03:14:39 +0100

> __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@...adent.org.uk>

Applied, thanks.
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