netdev - Re: [PATCH] r8169: read MAC address from EEPROM on init

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Date:	Thu, 18 Sep 2008 22:34:22 +0300 (EEST)
From:	"Ilpo Järvinen" <ilpo.jarvinen@...sinki.fi>
To:	Ivan Vecera <ivecera@...hat.com>
cc:	Francois Romieu <romieu@...zoreil.com>, netdev@...r.kernel.org,
	Edward Hsu <edward_hsu@...ltek.com.tw>
Subject: Re: [PATCH] r8169: read MAC address from EEPROM on init

On Thu, 18 Sep 2008, Ivan Vecera wrote:

> This fixes the problem when MAC address is set by ifconfig or by
> ip link commands and this address is stored in the device after
> reboot. The power-off is needed to get right MAC address.
> This is problem when Xen daemon is running because it renames the device
> name from ethX to pethX and sets its MAC address to FE:FF:FF:FF:FF:FF.
> After reboot the device is still using FE:FF:FF:FF:FF:FF.
> 
> Signed-off-by: Ivan Vecera <ivecera@...hat.com>
> ---
>  drivers/net/r8169.c |   80 ++++++++++++++++++++++++++++++++++++++++++++++++++-
>  1 files changed, 79 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
> index befc927..b09a4ec 100644
> --- a/drivers/net/r8169.c
> +++ b/drivers/net/r8169.c
> @@ -1910,6 +1910,81 @@ static void rtl_disable_msi(struct pci_dev *pdev, struct rtl8169_private *tp)
>  	}
>  }
> 
> +static int rtl_eeprom_read(struct pci_dev *pdev, int cap, int addr, u32 *val)
> +{
> +	int ret, count = 100;
> +	u16 status = 0;
> +	u32 value;

...

> +	*val = cpu_to_le32(value);

Did you check this with sparse?


-- 
 i.
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