From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3rbbt440PNzDq5W for ; Fri, 24 Jun 2016 21:37:48 +1000 (AEST) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by gate.crashing.org (8.14.1/8.13.8) with ESMTP id u5OBbgt2012997 for ; Fri, 24 Jun 2016 06:37:44 -0500 Message-ID: <1466768261.11733.99.camel@kernel.crashing.org> Subject: [PATCH/RFC] powerpc/pci: Don't try to allocate resources that will be reassigned From: Benjamin Herrenschmidt To: linuxppc dev list Date: Fri, 24 Jun 2016 21:37:41 +1000 Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , When we know we will reassign all resources, trying (and failing) to allocate them initially is fairly pointless and leads to a lot of scary messages in the kernel log Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/kernel/pci-common.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index 0f7a60f..2a67b16 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -1362,8 +1362,10 @@ void __init pcibios_resource_survey(void) /* Allocate and assign resources */ list_for_each_entry(b, &pci_root_buses, node) pcibios_allocate_bus_resources(b); - pcibios_allocate_resources(0); - pcibios_allocate_resources(1); + if (!pci_has_flag(PCI_REASSIGN_ALL_RSRC)) { + pcibios_allocate_resources(0); + pcibios_allocate_resources(1); + } /* Before we start assigning unassigned resource, we try to reserve * the low IO area and the VGA memory area if they intersect the