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

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Message-ID: <1343866955.2602.66.camel@bwh-desktop.uk.solarflarecom.com>
Date:	Thu, 2 Aug 2012 01:22:35 +0100
From:	Ben Hutchings <bhutchings@...arflare.com>
To:	Or Gerlitz <ogerlitz@...lanox.com>
CC:	<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 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().

> +	/* indicates ABI version */
> +	snprintf(drvinfo->fw_version, 32, "%d", EIPOIB_ABI_VER);
[...]

This is an abuse of fw_version.

Ben.

-- 
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.

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