netdev - Re: [1/3] IRDA: Create new field tx

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Date:	Mon, 10 Nov 2008 12:51:16 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	avillaci@...bo.fiec.espol.edu.ec
Cc:	irda-users@...ts.sourceforge.net, netdev@...r.kernel.org
Subject: Re: [1/3] IRDA: Create new field tx_extra in skbuff

From: Alex Villacís Lasso <avillaci@...bo.fiec.espol.edu.ec>
Date: Mon, 10 Nov 2008 11:09:33 -0500

> @@ -279,6 +279,14 @@
>  	 */
>  	char			cb[48];
>  
> +	/*
> +	 * Additional space for layer-specific variables that need to
> +	 * survive past dev_queue_xmit(), which clobbers cb above.
> +	 * Intended for use by drivers that need additional layer-specific
> +	 * parameters in order to transmit a packet properly.
> +	 */
> +	char			tx_extra[32];
> +

This kind of bloat is absolutely not acceptable.

With IRDA as the only user of this thing, %99.99999 of systems out
there will just have this wasted space doing absolutely nothing.
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