From mboxrd@z Thu Jan  1 00:00:00 1970
From: Joe Perches <joe@perches.com>
Subject: Re: dst->obsolete has become pointless
Date: Wed, 09 Nov 2011 04:49:08 -0800
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Cc: steffen.klassert@secunet.com, netdev@vger.kernel.org,
	timo.teras@iki.fi
To: David Miller <davem@davemloft.net>
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On Tue, 2011-11-08 at 13:59 -0500, David Miller wrote:
> net: Kill pointless and misleading checks on dst->obsolete.
[]
> Therefore rename it to dst->freed, and make it take on only the values
> "0" and "1".
> diff --git a/include/net/dst.h b/include/net/dst.h
[]
> @@ -55,7 +55,7 @@ struct dst_entry {
>  #define DST_NOCOUNT		0x0020
>  
>  	short			error;
> -	short			obsolete;
> +	unsigned short		freed;

perhaps
	bool freed;
	bool __pad3;
just to mark the available space a bit more obviously.