linux-kernel - Re: [PATCH 2/8] bnx2x: adopt bnx2x_validate_addr() to .ndo_validate

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Date:	Wed, 29 Feb 2012 18:22:15 +0200
From:	"Dmitry Kravkov" <dmitry@...adcom.com>
To:	"Danny Kukawka" <danny.kukawka@...ect.de>
cc:	"Eilon Greenstein" <eilong@...adcom.com>,
	"Danny Kukawka" <dkukawka@...e.de>, netdev@...r.kernel.org,
	"David S. Miller" <davem@...emloft.net>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/8] bnx2x: adopt bnx2x_validate_addr() to
 .ndo_validate_addr changes

On Wed, 2012-02-29 at 16:42 +0100, Danny Kukawka wrote:
> Adopted bnx2x_validate_addr() to changes in .ndo_validate_addr,
> handle second parameter to be validated.
> 
> Signed-off-by: Danny Kukawka <danny.kukawka@...ect.de>
> ---
>  drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c |   13 ++++++++++---
>  1 files changed, 10 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
> index b4afef6..d25ef1e 100644
> --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
> +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
> @@ -10532,12 +10532,19 @@ static void poll_bnx2x(struct net_device *dev)
>  }
>  #endif
>  
> -static int bnx2x_validate_addr(struct net_device *dev)
> +static int bnx2x_validate_addr(struct net_device *dev, void *addr)
>  {
>  	struct bnx2x *bp = netdev_priv(dev);
> +	struct sockaddr *saddr; 
>  
> -	if (!bnx2x_is_valid_ether_addr(bp, dev->dev_addr))
> -		return -EADDRNOTAVAIL;
> +	if (addr) {
> +		saddr = addr;
> +		if (!bnx2x_is_valid_ether_addr(bp, saddr->sa_data))	
> +			return -EADDRNOTAVAIL;
> +	} else {
> +		if (!bnx2x_is_valid_ether_addr(bp, dev->dev_addr))
> +			return -EADDRNOTAVAIL;
> +	}
>  	return 0;
>  }
>  

Isn't it preferred to calculate the correct address for test and then
call bnx2x_is_valid_ether_addr() at the end?


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