From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161197Ab3FTRBj (ORCPT ); Thu, 20 Jun 2013 13:01:39 -0400 Received: from mail-pd0-f173.google.com ([209.85.192.173]:55213 "EHLO mail-pd0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1161182Ab3FTRBh (ORCPT ); Thu, 20 Jun 2013 13:01:37 -0400 From: Jiang Liu To: Bjorn Helgaas , Konrad Rzeszutek Wilk , Jeremy Fitzhardinge Cc: liuj97@gmail.com, Jiang Liu , Yijing Wang , xen-devel@lists.xensource.com, virtualization@lists.linux-foundation.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/3] PCI: export three functions to support modular host bridge driver Date: Fri, 21 Jun 2013 01:01:03 +0800 Message-Id: <1371747665-12768-2-git-send-email-liuj97@gmail.com> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1371747665-12768-1-git-send-email-liuj97@gmail.com> References: <1371747665-12768-1-git-send-email-liuj97@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jiang Liu The xen-pcifront host bridge driver could be built as a module, so export pci_create_root_bus(), pci_stop_and_remove_root_bus() and pci_set_host_bridge_release() to support modular host bridge drivers. This patch is a preparation for coming xen-pcifront refinement. Signed-off-by: Jiang Liu Cc: Konrad Rzeszutek Wilk Cc: Jeremy Fitzhardinge Cc: xen-devel@lists.xensource.com Cc: virtualization@lists.linux-foundation.org Cc: linux-pci@vger.kernel.org Cc: linux-kernel@vger.kernel.org --- drivers/pci/host-bridge.c | 1 + drivers/pci/probe.c | 1 + drivers/pci/remove.c | 7 +++++++ include/linux/pci.h | 1 + 4 files changed, 10 insertions(+) diff --git a/drivers/pci/host-bridge.c b/drivers/pci/host-bridge.c index a68dc61..6e390a6 100644 --- a/drivers/pci/host-bridge.c +++ b/drivers/pci/host-bridge.c @@ -34,6 +34,7 @@ void pci_set_host_bridge_release(struct pci_host_bridge *bridge, bridge->release_fn = release_fn; bridge->release_data = release_data; } +EXPORT_SYMBOL(pci_set_host_bridge_release); static bool resource_contains(struct resource *res1, struct resource *res2) { diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 46ada5c..ed768d8 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -1801,6 +1801,7 @@ err_out: kfree(b); return NULL; } +EXPORT_SYMBOL(pci_create_root_bus); int pci_bus_insert_busn_res(struct pci_bus *b, int bus, int bus_max) { diff --git a/drivers/pci/remove.c b/drivers/pci/remove.c index 8fc54b7..f328668 100644 --- a/drivers/pci/remove.c +++ b/drivers/pci/remove.c @@ -147,3 +147,10 @@ void pci_remove_root_bus(struct pci_bus *bus) /* remove the host bridge */ put_device(&host_bridge->dev); } + +void pci_stop_and_remove_root_bus(struct pci_bus *bus) +{ + pci_stop_root_bus(bus); + pci_remove_root_bus(bus); +} +EXPORT_SYMBOL(pci_stop_and_remove_root_bus); diff --git a/include/linux/pci.h b/include/linux/pci.h index 0fd1f15..f1229c7 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -757,6 +757,7 @@ void pci_remove_bus(struct pci_bus *b); void pci_stop_and_remove_bus_device(struct pci_dev *dev); void pci_stop_root_bus(struct pci_bus *bus); void pci_remove_root_bus(struct pci_bus *bus); +void pci_stop_and_remove_root_bus(struct pci_bus *bus); void pci_setup_cardbus(struct pci_bus *bus); void pci_sort_breadthfirst(void); #define dev_is_pci(d) ((d)->bus == &pci_bus_type) -- 1.8.1.2