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

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Message-ID: <1330536026.25281.6.camel@lb-tlvb-dmitry>
Date:	Wed, 29 Feb 2012 19:20:26 +0200
From:	"Dmitry Kravkov" <dmitry@...adcom.com>
To:	"Danny Kukawka" <danny.kukawka@...ect.de>
cc:	"Eilon Greenstein" <eilong@...adcom.com>, 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 18:08 +0100, Danny Kukawka wrote:
> On Mittwoch, 29. Februar 2012, Dmitry Kravkov wrote:
> > 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?
> 
> Do you mean something like this: 
BUT:

> int eth_validate_addr(struct net_device *dev, void *addr)
> {
You still need to extract bp here:
	struct bnx2x *bp = netdev_priv(dev);
>  u8 *vaddr;
> 
>  if (addr)
>     vaddr = ((struct sockaddr *) addr)->sa_data;
>  else
>     vaddr = dev->dev_addr;
> 
>  if (!is_valid_ether_addr(vaddr))
and call internal function here:
	if (!bnx2x_is_valid_ether_addr(bp, vaddr))
>     return -EADDRNOTAVAIL;
> 
>  return 0;
> }
> 




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