netdev - Re: [PATCH] net: force dst_default

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Message-Id: <20120807.145533.2161378343227639185.davem@davemloft.net>
Date:	Tue, 07 Aug 2012 14:55:33 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	bhutchings@...arflare.com
Cc:	eric.dumazet@...il.com, netdev@...r.kernel.org
Subject: Re: [PATCH] net: force dst_default_metrics to const section

From: Ben Hutchings <bhutchings@...arflare.com>
Date: Tue, 7 Aug 2012 21:15:27 +0100

> Some day the compiler may be smart enough to ignore the different
> between explicit and implicit zero-initialisation, and put it back in
> BSS.  Declaring this __cache_aligned_in_smp might be a better option.

I'm surprised it doesn't already do this.

It definitely puts scalar explicit zero initializers into the BSS.
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