netdev - Re: [PATCH 1/4] net: sfp: add workaround for Realtek RTL8672 and RTL9601C chips

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Message-ID: <X+4GwpFnJ0Asq/Yj@lunn.ch>
Date:   Thu, 31 Dec 2020 18:13:38 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Pali Rohár <pali@...nel.org>
Cc:     Russell King - ARM Linux admin <linux@...linux.org.uk>,
        Heiner Kallweit <hkallweit1@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Marek Behún <kabel@...nel.org>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/4] net: sfp: add workaround for Realtek RTL8672 and
 RTL9601C chips

> > Looking at sfp_module_info(), adding a check for i2c_block_size < 2
> > when determining what length to return. ethtool should do the right
> > thing, know that the second page has not been returned to user space.
> 
> But if we limit length of eeprom then userspace would not be able to
> access those TX_DISABLE, LOS and other bits from byte 110 at address A2.

Have you tested these bits to see if they actually work? If they don't
work...

	 Andrew