netdev - RE: [PATCH] net: fec: fix the error to get the previous BD entry

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Date:	Mon, 2 Sep 2013 02:09:56 +0000
From:	Li Frank-B20596 <B20596@...escale.com>
To:	Duan Fugang-B38611 <B38611@...escale.com>,
	David Miller <davem@...emloft.net>
CC:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"bhutchings@...arflare.com" <bhutchings@...arflare.com>,
	"l.stach@...gutronix.de" <l.stach@...gutronix.de>
Subject: RE: [PATCH] net: fec: fix the error to get the previous BD entry

> 
> Due to get tx & rx previous description use the same function
> fec_enet_get_prevdesc(). If put the logic into fec_enet_get_prevdesc(), I
> think it is better to split the function to
> fec_enet_get_tx_prevdesc(),fec_enet_get_rx_prevdesc().
> 
> If you agree it, I will submit one patch to do it.

It doesn't looks good to split to two functions. 
Can we use if (p == fep->tx_base || p == fep->rx_base) to check if get first entry of queue?

Best regards
Frank Li

> 
> Thanks,
> Andy

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