[v4,09/12] net: ethernet: xilinx: Generate random mac if none found

At the moment, if the emaclite device doesn't find a mac address
from any source, it simply uses 0x0 with a warning printed.

Instead of using a 0x0 mac address, use a randomly generated one.

Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>

---
V3 -> V4
Curly braces after if check for correct styling

V2 -> V3
No change

V1 -> V2
New patch
---
 drivers/net/ethernet/xilinx/xilinx_emaclite.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

On 1.9.2016 18:51, Zubair Lutfullah Kakakhel wrote:
> At the moment, if the emaclite device doesn't find a mac address
> from any source, it simply uses 0x0 with a warning printed.
> 
> Instead of using a 0x0 mac address, use a randomly generated one.
> 
> Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
> 
> ---
> V3 -> V4
> Curly braces after if check for correct styling
> 
> V2 -> V3
> No change
> 
> V1 -> V2
> New patch
> ---
>  drivers/net/ethernet/xilinx/xilinx_emaclite.c | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
> index 3cee84a..efc8d2e 100644
> --- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
> +++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
> @@ -1131,11 +1131,13 @@ static int xemaclite_of_probe(struct platform_device *ofdev)
>  	lp->rx_ping_pong = get_bool(ofdev, "xlnx,rx-ping-pong");
>  	mac_address = of_get_mac_address(ofdev->dev.of_node);
>  
> -	if (mac_address)
> +	if (mac_address) {
>  		/* Set the MAC address. */
>  		memcpy(ndev->dev_addr, mac_address, ETH_ALEN);
> -	else
> -		dev_warn(dev, "No MAC address found\n");
> +	} else {
> +		dev_warn(dev, "No MAC address found. Generating Random one\n");
> +		eth_hw_addr_random(ndev);
> +	}
>  
>  	/* Clear the Tx CSR's in case this is a restart */
>  	__raw_writel(0, lp->base_addr + XEL_TSR_OFFSET);
> 

You should remove these 2 emaclite patches and send them separately
because they should go via netdev tree.

Thanks,
Michal