netdev - Re: [PATCH 10/14] net: dsa/mv88e6352: Implement EEPROM access functions

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20141023135412.GC25190@lunn.ch>
Date:	Thu, 23 Oct 2014 15:54:12 +0200
From:	Andrew Lunn <andrew@...n.ch>
To:	Guenter Roeck <linux@...ck-us.net>
Cc:	netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
	Florian Fainelli <f.fainelli@...il.com>,
	Andrew Lunn <andrew@...n.ch>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 10/14] net: dsa/mv88e6352: Implement EEPROM access
 functions

On Wed, Oct 22, 2014 at 09:03:18PM -0700, Guenter Roeck wrote:
> MV88E6352 supports read and write access to its configuration eeprom.

Hi Guenter

I don't have the datasheet for the MV88E6352. Is the EEPROM built in,
or external on an i2c bus?

> +static int mv88e6352_get_eeprom_len(struct dsa_switch *ds)
> +{
> +	return 0x200;
> +}

How do you handle the case of it being external and not populated.
Would it not be better to try to detect it here, and return 0 if it
does not exist?

      Andrew
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html