netdev - Re: [PATCH v2] FIRMWARE: bcm47xx_nvram: Replace mac address parsing

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Date:   Thu, 18 Jan 2018 15:40:57 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Hauke Mehrtens <hauke@...ke-m.de>,
        Rafał Miłecki <zajec5@...il.com>,
        linux-mips@...ux-mips.org,
        "David S . Miller" <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH v2] FIRMWARE: bcm47xx_nvram: Replace mac address parsing

On Thu, 2017-12-21 at 17:42 +0100, Hauke Mehrtens wrote:
> 
> On 12/21/2017 03:40 PM, Andy Shevchenko wrote:
> > Replace sscanf() with mac_pton().
> > 
> > Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> 
> Acked-by: Hauke Mehrtens <hauke@...ke-m.de>
> 
> The patch looks good, but I haven't tested them on my devices.

Any news on this, anyone?

> > ---
> > - use negative condition to be consistent with the rest code
> >  drivers/firmware/broadcom/Kconfig         |  1 +
> >  drivers/firmware/broadcom/bcm47xx_sprom.c | 18 +++---------------
> >  2 files changed, 4 insertions(+), 15 deletions(-)
> > 
> > diff --git a/drivers/firmware/broadcom/Kconfig
> > b/drivers/firmware/broadcom/Kconfig
> > index 5e29f83e7b39..c041dcb7ea52 100644
> > --- a/drivers/firmware/broadcom/Kconfig
> > +++ b/drivers/firmware/broadcom/Kconfig
> > @@ -13,6 +13,7 @@ config BCM47XX_NVRAM
> >  config BCM47XX_SPROM
> >  	bool "Broadcom SPROM driver"
> >  	depends on BCM47XX_NVRAM
> > +	select GENERIC_NET_UTILS
> >  	help
> >  	  Broadcom devices store configuration data in SPROM.
> > Accessing it is
> >  	  specific to the bus host type, e.g. PCI(e) devices have
> > it mapped in
> > diff --git a/drivers/firmware/broadcom/bcm47xx_sprom.c
> > b/drivers/firmware/broadcom/bcm47xx_sprom.c
> > index 62aa3cf09b4d..4787f86c8ac1 100644
> > --- a/drivers/firmware/broadcom/bcm47xx_sprom.c
> > +++ b/drivers/firmware/broadcom/bcm47xx_sprom.c
> > @@ -137,20 +137,6 @@ static void nvram_read_leddc(const char
> > *prefix, const char *name,
> >  	*leddc_off_time = (val >> 16) & 0xff;
> >  }
> >  
> > -static void bcm47xx_nvram_parse_macaddr(char *buf, u8 macaddr[6])
> > -{
> > -	if (strchr(buf, ':'))
> > -		sscanf(buf, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx",
> > &macaddr[0],
> > -			&macaddr[1], &macaddr[2], &macaddr[3],
> > &macaddr[4],
> > -			&macaddr[5]);
> > -	else if (strchr(buf, '-'))
> > -		sscanf(buf, "%hhx-%hhx-%hhx-%hhx-%hhx-%hhx",
> > &macaddr[0],
> > -			&macaddr[1], &macaddr[2], &macaddr[3],
> > &macaddr[4],
> > -			&macaddr[5]);
> > -	else
> > -		pr_warn("Can not parse mac address: %s\n", buf);
> > -}
> > -
> >  static void nvram_read_macaddr(const char *prefix, const char
> > *name,
> >  			       u8 val[6], bool fallback)
> >  {
> > @@ -161,7 +147,9 @@ static void nvram_read_macaddr(const char
> > *prefix, const char *name,
> >  	if (err < 0)
> >  		return;
> >  
> > -	bcm47xx_nvram_parse_macaddr(buf, val);
> > +	strreplace(buf, '-', ':');
> > +	if (!mac_pton(buf, val))
> > +		pr_warn("Can not parse mac address: %s\n", buf);
> >  }
> >  
> >  static void nvram_read_alpha2(const char *prefix, const char *name,
> > 

-- 
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Intel Finland Oy