netdev - Re: [PATCH] net: force dst_default

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Message-Id: <20120807.161757.1233303983113040933.davem@davemloft.net>
Date:	Tue, 07 Aug 2012 16:17:57 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	bhutchings@...arflare.com, netdev@...r.kernel.org
Subject: Re: [PATCH] net: force dst_default_metrics to const section

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Wed, 08 Aug 2012 00:56:40 +0200

> On Tue, 2012-08-07 at 23:44 +0100, Ben Hutchings wrote:
> 
>> Any consideration of implementation details like BSS and cache line
>> sharing is already outside of 'plain C'.  And you don't have to 'mess
>> with all arches'; just look at what <linux/init.h> and <linux/module.h>
>> do.
> 
> "const" is the clean and portable way to express my needs. No magic
> section.
> 
> All is self-contained in the definition of the metrics, with a nice
> comment.
> 
> All const are naturally shared by all cpus, without adding extra cache
> line boundaries.

I agree with Eric and will apply his patch.
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