From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752797AbZIXABa (ORCPT ); Wed, 23 Sep 2009 20:01:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752753AbZIXAB2 (ORCPT ); Wed, 23 Sep 2009 20:01:28 -0400 Received: from sj-iport-6.cisco.com ([171.71.176.117]:42645 "EHLO sj-iport-6.cisco.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752609AbZIXAB1 (ORCPT ); Wed, 23 Sep 2009 20:01:27 -0400 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ApoEACNTukqrR7PE/2dsb2JhbAC+a4hPAY9uBYQb X-IronPort-AV: E=Sophos;i="4.44,441,1249257600"; d="scan'208";a="394836698" From: Roland Dreier To: Jesse Barnes , David Woodhouse Cc: linux-kernel@vger.kernel.org Subject: [PATCH] intel-iommu: Make "Unknown DMAR structure" message more informative X-Message-Flag: Warning: May contain useful information Date: Wed, 23 Sep 2009 17:01:29 -0700 Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.91 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-OriginalArrivalTime: 24 Sep 2009 00:01:30.0202 (UTC) FILETIME=[2B4C7BA0:01CA3CAA] Authentication-Results: sj-dkim-4; header.From=rdreier@cisco.com; dkim=pass ( sig from cisco.com/sjdkim4002 verified; ); Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We might as well print the type of the DMAR structure we don't know how to handle when skipping it. Then someone getting this message has a chance of telling whether the structure is just bogus, or if there really is something valid that the kernel doesn't know how to handle. Signed-off-by: Roland Dreier --- drivers/pci/dmar.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c index 14bbaa1..d199bca 100644 --- a/drivers/pci/dmar.c +++ b/drivers/pci/dmar.c @@ -461,7 +461,8 @@ parse_dmar_table(void) break; default: printk(KERN_WARNING PREFIX - "Unknown DMAR structure type\n"); + "Unknown DMAR structure type %d\n", + entry_header->type); ret = 0; /* for forward compatibility */ break; }