netdev - [NET-NEXT PATCH 01/18] igb: limit EEPROM access

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Message-ID: <20080627175921.22428.52767.stgit@localhost.localdomain>
Date:	Fri, 27 Jun 2008 10:59:33 -0700
From:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:	jeff@...zik.org, davem@...emloft.net
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	e1000-devel@...ts.sourceforge.net
Subject: [NET-NEXT PATCH 01/18] igb: limit EEPROM access

EEPROM access beyond the base eeprom page is unsupported.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@...el.com>
---

 drivers/net/igb/e1000_82575.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/drivers/net/igb/e1000_82575.c b/drivers/net/igb/e1000_82575.c
index cda3ec8..39d44dc 100644
--- a/drivers/net/igb/e1000_82575.c
+++ b/drivers/net/igb/e1000_82575.c
@@ -171,6 +171,10 @@ static s32 igb_get_invariants_82575(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;
 
 	/* setup PHY parameters */

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