netdev - Re: [PATCH net-next] net: reorder some fields of net

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Message-Id: <20130330.173153.1283819859704936260.davem@davemloft.net>
Date:	Sat, 30 Mar 2013 17:31:53 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH net-next] net: reorder some fields of net_device

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Sat, 30 Mar 2013 09:31:03 -0700

> From: Eric Dumazet <edumazet@...gle.com>
> 
> As time passed, some fields were added in net_device, and not
> at sensible offsets.
> 
> Lets reorder some fields to reduce number of cache lines in RX path.
> Fields not used in data path should be moved out of this critical cache
> line.
> 
> In particular, move broadcast[] to the end of the rx section,
> as it is less used, and ethernet uses only the beginning of the 32bytes
> field.
 ...
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Applied.
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