From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Kirsher Subject: [net] e1000: Fix driver to be used on PA RISC C8000 workstations Date: Tue, 30 Aug 2011 17:19:26 -0700 Message-ID: <1314749966-9960-1-git-send-email-jeffrey.t.kirsher@intel.com> Cc: Jeff Kirsher , netdev@vger.kernel.org, gospo@redhat.com, stable@kernel.org, Guy Martin , Rolf Eike Beer , Matt Turner To: davem@davemloft.net Return-path: Received: from mga03.intel.com ([143.182.124.21]:62279 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754120Ab1HaATa (ORCPT ); Tue, 30 Aug 2011 20:19:30 -0400 Sender: netdev-owner@vger.kernel.org List-ID: The checksum field in the EEPROM on HPPA is really not a checksum but a signature (0x16d6). So allow 0x16d6 as the matching checksum on HPPA systems. This issue is present on longterm/stable kernels, I have verified that this patch is applicable back to at least 2.6.32.y kernels. CC: Guy Martin CC: Rolf Eike Beer CC: Matt Turner Reported-by: Mikulas Patocka Signed-off-by: Jeff Kirsher Acked-by: Jesse Brandeburg --- drivers/net/e1000/e1000_hw.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/drivers/net/e1000/e1000_hw.c b/drivers/net/e1000/e1000_hw.c index 8545c7a..08c1ad5 100644 --- a/drivers/net/e1000/e1000_hw.c +++ b/drivers/net/e1000/e1000_hw.c @@ -4026,6 +4026,12 @@ s32 e1000_validate_eeprom_checksum(struct e1000_hw *hw) checksum += eeprom_data; } +#ifdef __hppa__ + /* This is a signature and not a checksum on HP c8000 */ + if ((hw->subsystem_vendor_id == 0x103C) && (eeprom_data == 0x16d6)) + return E1000_SUCCESS; + +#endif if (checksum == (u16) EEPROM_SUM) return E1000_SUCCESS; else { -- 1.7.6