netdev - [patch v2] net/fec: cleanup types in fec_get

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Date:	Thu, 29 Aug 2013 11:25:14 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Grant Likely <grant.likely@...aro.org>
Cc:	Rob Herring <rob.herring@...xeda.com>,
	"David S. Miller" <davem@...emloft.net>,
	Fabio Estevam <fabio.estevam@...escale.com>,
	Frank Li <Frank.Li@...escale.com>,
	Jim Baxter <jim_baxter@...tor.com>,
	Fugang Duan <B38611@...escale.com>, netdev@...r.kernel.org,
	Ben Hutchings <bhutchings@...arflare.com>,
	devicetree@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [patch v2] net/fec: cleanup types in fec_get_mac()

My static checker complains that on some arches unsigned longs can be 8
characters which is larger than the buffer is only 6 chars.
Additionally, Ben Hutchings points out that the buffer actually holds
big endian data and the buffer we are reading from is CPU endian.

Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
---
v2: fix endian annotations and reverse the beXX_to_cpu() calls so that
    they say cpu_to_beXX().

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index fdf9307..0b12866 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1100,10 +1100,10 @@ static void fec_get_mac(struct net_device *ndev)
 	 * 4) FEC mac registers set by bootloader
 	 */
 	if (!is_valid_ether_addr(iap)) {
-		*((unsigned long *) &tmpaddr[0]) =
-			be32_to_cpu(readl(fep->hwp + FEC_ADDR_LOW));
-		*((unsigned short *) &tmpaddr[4]) =
-			be16_to_cpu(readl(fep->hwp + FEC_ADDR_HIGH) >> 16);
+		*((__be32 *) &tmpaddr[0]) =
+			cpu_to_be32(readl(fep->hwp + FEC_ADDR_LOW));
+		*((__be16 *) &tmpaddr[4]) =
+			cpu_to_be16(readl(fep->hwp + FEC_ADDR_HIGH) >> 16);
 		iap = &tmpaddr[0];
 	}
 
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