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[Patch v3 08/11] net: ethernet: xilinx: Generate random mac if none found

Started byZubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
First post2016-08-31 18:40 +0200
Last post2016-09-01 17:40 +0200
Articles 3 — 2 participants

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  [Patch v3 08/11] net: ethernet: xilinx: Generate random mac if none found Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com> - 2016-08-31 18:40 +0200
    Re: [Patch v3 08/11] net: ethernet: xilinx: Generate random mac if  none found Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-09-01 13:00 +0200
      Re: [Patch v3 08/11] net: ethernet: xilinx: Generate random mac if  none found Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com> - 2016-09-01 17:40 +0200

#1473679 — [Patch v3 08/11] net: ethernet: xilinx: Generate random mac if none found

FromZubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Date2016-08-31 18:40 +0200
Subject[Patch v3 08/11] net: ethernet: xilinx: Generate random mac if none found
Message-ID<scgIr-4Kp-51@gated-at.bofh.it>
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>

---
V2 -> V3
No change

V1 -> V2
New patch
---
 drivers/net/ethernet/xilinx/xilinx_emaclite.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index 3cee84a..22e5a5a 100644
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -1134,8 +1134,10 @@ static int xemaclite_of_probe(struct platform_device *ofdev)
 	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);
-- 
1.9.1

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#1474277 — Re: [Patch v3 08/11] net: ethernet: xilinx: Generate random mac if none found

FromSergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date2016-09-01 13:00 +0200
SubjectRe: [Patch v3 08/11] net: ethernet: xilinx: Generate random mac if none found
Message-ID<scxSW-H2-27@gated-at.bofh.it>
In reply to#1473679
Hello.

On 8/31/2016 7:35 PM, 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>
[...]

> diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
> index 3cee84a..22e5a5a 100644
> --- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
> +++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
> @@ -1134,8 +1134,10 @@ static int xemaclite_of_probe(struct platform_device *ofdev)
>  	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);
> +	}

    All branches of the *if* statement should have {} if at least one has 
them, see Documentation/CodingStyle, chaoter 3.

[...]

MBR, Sergei

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#1474489 — Re: [Patch v3 08/11] net: ethernet: xilinx: Generate random mac if none found

FromZubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Date2016-09-01 17:40 +0200
SubjectRe: [Patch v3 08/11] net: ethernet: xilinx: Generate random mac if none found
Message-ID<scCfT-3EJ-7@gated-at.bofh.it>
In reply to#1474277

On 09/01/2016 11:52 AM, Sergei Shtylyov wrote:
> Hello.
>
> On 8/31/2016 7:35 PM, 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>
> [...]
>
>> diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
>> index 3cee84a..22e5a5a 100644
>> --- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
>> +++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
>> @@ -1134,8 +1134,10 @@ static int xemaclite_of_probe(struct platform_device *ofdev)
>>      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);
>> +    }
>
>    All branches of the *if* statement should have {} if at least one has them, see Documentation/CodingStyle, chaoter 3.

Спасибо

ZubairLK

>
> [...]
>
> MBR, Sergei
>

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