linux-kernel - Re: [PATCH] forcedeth: reconfigure multicast packet filter only when needed

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Date:	Sat, 9 Oct 2010 11:32:13 -0700
From:	Stephen Hemminger <shemminger@...tta.com>
To:	Jindřich Makovička <makovick@...il.com>
Cc:	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	davem@...emloft.net, aabdulla@...dia.com, ditto@...gle.com
Subject: Re: [PATCH] forcedeth: reconfigure multicast packet filter only
 when needed

On Sat, 9 Oct 2010 13:26:05 +0200
Jindřich Makovička <makovick@...il.com> wrote:

> +
> +	/* current packet filter state */
> +	u32 cur_pff;
> +	u32 cur_addr[2];
> +	u32 cur_mask[2];
>  };

No big deal, but couldn't you just put those temporary variables
on the stack. and reread the current value before stopping.

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