From patchwork Wed Aug 31 00:19:26 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Kirsher, Jeffrey T" X-Patchwork-Id: 112396 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 886FBB6F8A for ; Wed, 31 Aug 2011 10:19:35 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754121Ab1HaATb (ORCPT ); Tue, 30 Aug 2011 20:19:31 -0400 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 Received: from azsmga002.ch.intel.com ([10.2.17.35]) by azsmga101.ch.intel.com with ESMTP; 30 Aug 2011 17:19:29 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.68,304,1312182000"; d="scan'208";a="12657516" Received: from unknown (HELO jtkirshe-mobl.amr.corp.intel.com) ([10.255.14.130]) by AZSMGA002.ch.intel.com with ESMTP; 30 Aug 2011 17:19:29 -0700 From: Jeff Kirsher To: davem@davemloft.net Cc: Jeff Kirsher , netdev@vger.kernel.org, gospo@redhat.com, stable@kernel.org, Guy Martin , Rolf Eike Beer , Matt Turner 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> X-Mailer: git-send-email 1.7.6 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org 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 {