Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932415AbbG0XlK (ORCPT ); Mon, 27 Jul 2015 19:41:10 -0400 Received: from userp1040.oracle.com ([156.151.31.81]:23910 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932106AbbG0XlE (ORCPT ); Mon, 27 Jul 2015 19:41:04 -0400 From: Yinghai Lu To: Bjorn Helgaas , David Miller , Benjamin Herrenschmidt , Wei Yang , TJ , Yijing Wang Cc: Andrew Morton , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Yinghai Lu , "Rafael J. Wysocki" , Len Brown , linux-acpi@vger.kernel.org Subject: [PATCH v3 13/51] PCI: Separate realloc list checking after allocation Date: Mon, 27 Jul 2015 16:29:31 -0700 Message-Id: <1438039809-24957-14-git-send-email-yinghai@kernel.org> X-Mailer: git-send-email 1.8.4.5 In-Reply-To: <1438039809-24957-1-git-send-email-yinghai@kernel.org> References: <1438039809-24957-1-git-send-email-yinghai@kernel.org> X-Source-IP: aserv0021.oracle.com [141.146.126.233] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3031 Lines: 90 We check the realloc list, as list must be empty after allocation. Separate the realloc list checking to another function. Add checking that is missed in acpiphp driver. Signed-off-by: Yinghai Lu Cc: "Rafael J. Wysocki" Cc: Len Brown Cc: linux-acpi@vger.kernel.org --- drivers/pci/hotplug/acpiphp_glue.c | 1 + drivers/pci/pci.h | 1 + drivers/pci/setup-bus.c | 11 ++++++++--- 3 files changed, 10 insertions(+), 3 deletions(-) diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index ff53856..134caee 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -507,6 +507,7 @@ static void enable_slot(struct acpiphp_slot *slot) } } __pci_bus_assign_resources(bus, &add_list, NULL); + __pci_bus_check_realloc(&add_list); acpiphp_sanitize_bus(bus); pcie_bus_configure_settings(bus); diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 4ff0ff1..2b83977 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -235,6 +235,7 @@ void __pci_bus_size_bridges(struct pci_bus *bus, void __pci_bus_assign_resources(const struct pci_bus *bus, struct list_head *realloc_head, struct list_head *fail_head); +void __pci_bus_check_realloc(struct list_head *realloc_head); bool pci_bus_clip_resource(struct pci_dev *dev, int idx); void pci_reassigndev_resource_alignment(struct pci_dev *dev); diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index 06664db..f30225c 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -350,6 +350,11 @@ out: } } +void __pci_bus_check_realloc(struct list_head *realloc_head) +{ + BUG_ON(!list_empty(realloc_head)); +} + /** * assign_requested_resources_sorted() - satisfy resource requests * @@ -1861,7 +1866,7 @@ again: /* Depth last, allocate resources and update the hardware. */ __pci_bus_assign_resources(bus, add_list, &fail_head); if (add_list) - BUG_ON(!list_empty(add_list)); + __pci_bus_check_realloc(add_list); tried_times++; /* any device complain? */ @@ -1936,7 +1941,7 @@ void pci_assign_unassigned_bridge_resources(struct pci_dev *bridge) again: __pci_bus_size_bridges(parent, &add_list); __pci_bridge_assign_resources(bridge, &add_list, &fail_head); - BUG_ON(!list_empty(&add_list)); + __pci_bus_check_realloc(&add_list); tried_times++; if (list_empty(&fail_head)) @@ -1995,6 +2000,6 @@ void pci_assign_unassigned_bus_resources(struct pci_bus *bus) &add_list); up_read(&pci_bus_sem); __pci_bus_assign_resources(bus, &add_list, NULL); - BUG_ON(!list_empty(&add_list)); + __pci_bus_check_realloc(&add_list); } EXPORT_SYMBOL_GPL(pci_assign_unassigned_bus_resources); -- 1.8.4.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/