netdev - Re: [PATCH 4/8] e1000e: limit EEPROM size accesses

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Message-ID: <47F11260.6070808@intel.com>
Date:	Mon, 31 Mar 2008 09:33:36 -0700
From:	"Kok, Auke" <auke-jan.h.kok@...el.com>
To:	Jeff Garzik <jeff@...zik.org>
CC:	netdev@...r.kernel.org, e1000-devel@...ts.sourceforge.net
Subject: Re: [PATCH 4/8] e1000e: limit EEPROM size accesses

Jeff Garzik wrote:
> Auke Kok wrote:
>> From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
>>
>> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
>> Signed-off-by: Auke Kok <auke-jan.h.kok@...el.com>
>> ---
>>
>>  drivers/net/e1000e/82571.c  |    4 ++++
>>  drivers/net/e1000e/es2lan.c |    4 ++++
>>  2 files changed, 8 insertions(+), 0 deletions(-)
>>
>> diff --git a/drivers/net/e1000e/82571.c b/drivers/net/e1000e/82571.c
>> index f7e1619..9b46a00 100644
>> --- a/drivers/net/e1000e/82571.c
>> +++ b/drivers/net/e1000e/82571.c
>> @@ -171,6 +171,10 @@ static s32 e1000_init_nvm_params_82571(struct
>> e1000_hw *hw)
>>           * for setting word_size.
>>           */
>>          size += NVM_WORD_SIZE_BASE_SHIFT;
>> +
>> +        /* EEPROM access above 16k is unsupported */
>> +        if (size > 14)
>> +            size = 14;
>>          nvm->word_size    = 1 << size;
>>          break;
>>      }
>> diff --git a/drivers/net/e1000e/es2lan.c b/drivers/net/e1000e/es2lan.c
>> index e3f4aee..2689e4b 100644
>> --- a/drivers/net/e1000e/es2lan.c
>> +++ b/drivers/net/e1000e/es2lan.c
>> @@ -178,6 +178,10 @@ static s32
>> e1000_init_nvm_params_80003es2lan(struct e1000_hw *hw)
>>       * for setting word_size.
>>       */
>>      size += NVM_WORD_SIZE_BASE_SHIFT;
>> +
>> +    /* EEPROM access above 16k is unsupported */
>> +    if (size > 14)
>> +        size = 14;
>>      nvm->word_size    = 1 << size;
> 
> Is this 2.6.25-rc material?

hardly, there are no known bugs again us reading too far in the eeprom. 2.6.26+ is
fine.

Auke
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