Hi,

Baruch Siach writes:

Hi Lothar,

On Tue, Dec 06, 2011 at 11:27:13AM +0100, Lothar Waßmann wrote:

quoted

When the MAC address is supplied via platform_data it should be OK as
it is and should not be modified in case of a dual FEC setup.
Also copying the MAC from platform_data to the single 'macaddr'
variable will overwrite the MAC for the first interface in case of a
dual FEC setup.

Signed-off-by: Lothar Waßmann <redacted>
---
 drivers/net/ethernet/freescale/fec.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/net/ethernet/freescale/fec.c b/drivers/net/ethernet/freescale/fec.c
index e2b5ce6..11534b9 100644
--- a/drivers/net/ethernet/freescale/fec.c
+++ b/drivers/net/ethernet/freescale/fec.c

@@ -818,7 +818,7 @@ static void __inline__ fec_get_mac(struct net_device *ndev)
 			iap = (unsigned char *)FEC_FLASHMAC;
 #else
 		if (pdata)
-			memcpy(iap, pdata->mac, ETH_ALEN);
+			iap = (unsigned char *)&pdata->mac;

Since pdata might point to __initdata struct, you must hold a copy of its 
content.

No. platform_data must be present during the life time of a driver
using it and thus must never be __initdata!


Lothar Waßmann
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