netdev - Re: [PATCH v4] FEC - fast ethernet controller for mpc52xx

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Date:	Thu, 1 Nov 2007 12:31:24 +0100 (CET)
From:	tnt@...cksnow.net
To:	"Domen Puncer" <domen.puncer@...argo.com>
Cc:	"Jeff Garzik" <jgarzik@...ox.com>,
	"Grant Likely" <grant.likely@...retlab.ca>,
	galak@...nel.crashing.org, linuxppc-dev@...abs.org, tnt@...tnt.com,
	netdev@...r.kernel.org
Subject: Re: [PATCH v4] FEC - fast ethernet controller for mpc52xx

> +	while (bcom_buffer_done(priv->tx_dmatsk)) {
> +		struct sk_buff *skb;
> +		skb = bcom_retrieve_buffer(priv->tx_dmatsk, NULL, NULL);
> +		/* Here (and in rx routines) would be a good place for
> +		 * dma_unmap_single(), but bcom doesn't return bcom_bd of the
> +		 * finished transfer, and _unmap is empty on this platfrom.
> +		 */
> +

Of course bestcomm let's you get back the bcom_bd ... What do you think
your second NULL parameter is for ?
Give it a pointer to a bcom_bd * and it will fill your pointer for you to
point to the bd you just got back.


   Sylvain

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