lkml.org 
[lkml]   [2014]   [Oct]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] net: ethtool: Return -EOPNOTSUPP if user space tries to read EEPROM with lengh 0
On Thu, Oct 30, 2014 at 08:50:15PM -0700, Guenter Roeck wrote:
> If a driver supports reading EEPROM but no EEPROM is installed in the system,
> the driver's get_eeprom_len function returns 0. ethtool will subsequently
> try to read that zero-length EEPROM anyway. If the driver does not support
> EEPROM access at all, this operation will return -EOPNOTSUPP. If the driver
> does support EEPROM access but no EEPROM is installed, the operation will
> return -EINVAL. Return -EOPNOTSUPP in both cases for consistency.
>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>

root@dir665:~# ethtool -e lan4
Cannot get EEPROM data: Operation not supported

Tested-by: Andrew Lunn <andrew@lunn.ch>

Thanks
Andrew


\
 
 \ /
  Last update: 2014-10-31 05:41    [W:0.049 / U:0.344 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site