netdev - Re: [PATCH V2 08/12] net/eipoib: Add ethtool file support

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Message-ID: <501A3BDE.1070509@mellanox.com>
Date:	Thu, 2 Aug 2012 11:35:42 +0300
From:	Erez Shitrit <erezsh@...lanox.com>
To:	Ben Hutchings <bhutchings@...arflare.com>
CC:	Or Gerlitz <ogerlitz@...lanox.com>, <davem@...emloft.net>,
	<roland@...nel.org>, <netdev@...r.kernel.org>, <ali@...lanox.com>,
	<sean.hefty@...el.com>, Erez Shitrit <erezsh@...lanox.co.il>
Subject: Re: [PATCH V2 08/12] net/eipoib: Add ethtool file support

On 8/2/2012 3:22 AM, Ben Hutchings wrote:
> On Wed, 2012-08-01 at 20:09 +0300, Or Gerlitz wrote:
>> From: Erez Shitrit <erezsh@...lanox.co.il>
>>
>> Via ethtool the driver describes its version, ABI version, on what PIF
>> interface it runs and various statistics.
> [...]
>> --- /dev/null
>> +++ b/drivers/net/eipoib/eth_ipoib_ethtool.c
> [...]
>> +static void parent_ethtool_get_drvinfo(struct net_device *parent_dev,
>> +				       struct ethtool_drvinfo *drvinfo)
>> +{
>> +	struct parent *parent = netdev_priv(parent_dev);
>> +
>> +	strncpy(drvinfo->driver, DRV_NAME, 32);
>> +
>> +	strncpy(drvinfo->version, DRV_VERSION, 32);
>> +
>> +	strncpy(drvinfo->bus_info, parent->ipoib_main_interface,
>> +		ETHTOOL_BUSINFO_LEN);
> These must be null-terminated; therefore use strlcpy().

ok, will fix.

>> +	/* indicates ABI version */
>> +	snprintf(drvinfo->fw_version, 32, "%d", EIPOIB_ABI_VER);
> [...]
>
> This is an abuse of fw_version.
>
> Ben.
we took the idea from the bonding driver,
(snprintf(drvinfo->fw_version, 32, "%d", BOND_ABI_VERSION);)

Do you have any idea where can we keep the abi version?

Thanks, Erez



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