netdev - Re: [PATCH v2 1/4] ssb: get mac address from sprom struct for gige driver

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Date:	Wed, 6 Feb 2013 19:21:34 +0100
From:	Michael Büsch <m@...s.ch>
To:	Hauke Mehrtens <hauke@...ke-m.de>
Cc:	davem@...emloft.net, mcarlson@...adcom.com, mchan@...adcom.com,
	nsujir@...adcom.com, netdev@...r.kernel.org
Subject: Re: [PATCH v2 1/4] ssb: get mac address from sprom struct for gige
 driver

On Wed,  6 Feb 2013 18:14:11 +0100
Hauke Mehrtens <hauke@...ke-m.de> wrote:

> The mac address is already stored in the sprom structure by the
> platform code of the SoC this Ethernet core is found on, it just has to
> be fetched from this structure instead of accessing the nvram here.
> This patch also adds a return value to indicate if a mac address could
> be fetched from the sprom structure.
> 
> Signed-off-by: Hauke Mehrtens <hauke@...ke-m.de>

Acked-by: Michael Buesch <m@...s.ch>

> ---
> 
> This patch could cause merge problems with the mips tree. This version, 
> removing the usage of nvram_getenv and nvram_parse_macaddr, should be 
> used.
> 
>  include/linux/ssb/ssb_driver_gige.h |   19 +++++++------------
>  1 file changed, 7 insertions(+), 12 deletions(-)
> 
> diff --git a/include/linux/ssb/ssb_driver_gige.h b/include/linux/ssb/ssb_driver_gige.h
> index 6b05dcd..912af3c 100644
> --- a/include/linux/ssb/ssb_driver_gige.h
> +++ b/include/linux/ssb/ssb_driver_gige.h
> @@ -97,21 +97,16 @@ static inline bool ssb_gige_must_flush_posted_writes(struct pci_dev *pdev)
>  	return 0;
>  }
>  
> -#ifdef CONFIG_BCM47XX
> -#include <asm/mach-bcm47xx/nvram.h>
>  /* Get the device MAC address */
> -static inline void ssb_gige_get_macaddr(struct pci_dev *pdev, u8 *macaddr)
> -{
> -	char buf[20];
> -	if (nvram_getenv("et0macaddr", buf, sizeof(buf)) < 0)
> -		return;
> -	nvram_parse_macaddr(buf, macaddr);
> -}
> -#else
> -static inline void ssb_gige_get_macaddr(struct pci_dev *pdev, u8 *macaddr)
> +static inline int ssb_gige_get_macaddr(struct pci_dev *pdev, u8 *macaddr)
>  {
> +	struct ssb_gige *dev = pdev_to_ssb_gige(pdev);
> +	if (!dev)
> +		return -ENODEV;
> +
> +	memcpy(macaddr, dev->dev->bus->sprom.et0mac, 6);
> +	return 0;
>  }
> -#endif
>  
>  extern int ssb_gige_pcibios_plat_dev_init(struct ssb_device *sdev,
>  					  struct pci_dev *pdev);



-- 
Greetings, Michael.

PGP: 908D8B0E

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