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Date:	Fri, 10 Jul 2015 18:25:16 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	claudiu.manoil@...escale.com
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH net-next 2/4] gianfar: Fix and cleanup rxbd status
 handling

From: Claudiu Manoil <claudiu.manoil@...escale.com>
Date: Thu, 9 Jul 2015 19:24:42 +0300

> @@ -2921,6 +2921,7 @@ int gfar_clean_rx_ring(struct gfar_priv_rx_q *rx_queue, int rx_work_limit)
>  	i = rx_queue->next_to_clean;
>  
>  	while (rx_work_limit--) {
> +		unsigned long lstatus;
>  
>  		if (cleaned_cnt >= GFAR_RX_BUFF_ALLOC) {
>  			gfar_alloc_rx_buffs(rx_queue, cleaned_cnt);
> @@ -2928,7 +2929,8 @@ int gfar_clean_rx_ring(struct gfar_priv_rx_q *rx_queue, int rx_work_limit)
>  		}
>  
>  		bdp = &rx_queue->rx_bd_base[i];
> -		if (be16_to_cpu(bdp->status) & RXBD_EMPTY)
> +		lstatus = be32_to_cpu(bdp->lstatus);
> +		if (lstatus & BD_LFLAG(RXBD_EMPTY))
>  			break;
>  
>  		/* order rx buffer descriptor reads */

"lstatus" is not an "unsigned long", it's a "u32".

Don't use ambiguous types for objects with exact known sizes.
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