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Message-ID: <1424914187-21027-9-git-send-email-wangyijing@huawei.com>
Date:	Thu, 26 Feb 2015 09:29:25 +0800
From:	Yijing Wang <wangyijing@...wei.com>
To:	Bjorn Helgaas <bhelgaas@...gle.com>
CC:	Jiang Liu <jiang.liu@...ux.intel.com>, <linux-pci@...r.kernel.org>,
	Yinghai Lu <yinghai@...nel.org>,
	<linux-kernel@...r.kernel.org>,
	Marc Zyngier <marc.zyngier@....com>,
	<linux-arm-kernel@...ts.infradead.org>,
	Russell King <linux@....linux.org.uk>, <x86@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Tony Luck <tony.luck@...el.com>, <linux-ia64@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>,
	"Guan Xuetao" <gxt@...c.pku.edu.cn>, <linux-alpha@...r.kernel.org>,
	<linux-m68k@...ts.linux-m68k.org>, Liviu Dudau <liviu@...au.co.uk>,
	"Arnd Bergmann" <arnd@...db.de>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	"Yijing Wang" <wangyijing@...wei.com>
Subject: [PATCH v3 08/30] PCI: Introduce pci_host_assign_domain_nr() to assign domain

Introduce pci_host_assign_domain_nr() to assign domain
number for pci_host_bridge. Later we will remove
pci_bus_assign_domain_nr().

Signed-off-by: Yijing Wang <wangyijing@...wei.com>
---
 drivers/pci/pci.c   |   14 +++++++++++---
 include/linux/pci.h |    4 ++++
 2 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 81f06e8..d9e7645 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -4501,10 +4501,10 @@ int pci_get_new_domain_nr(void)
 }
 
 #ifdef CONFIG_PCI_DOMAINS_GENERIC
-void pci_bus_assign_domain_nr(struct pci_bus *bus, struct device *parent)
+static int pci_assign_domain_nr(struct device *dev)
 {
 	static int use_dt_domains = -1;
-	int domain = of_get_pci_domain_nr(parent->of_node);
+	int domain = of_get_pci_domain_nr(dev->of_node);
 
 	/*
 	 * Check DT domain and use_dt_domains values.
@@ -4542,8 +4542,16 @@ void pci_bus_assign_domain_nr(struct pci_bus *bus, struct device *parent)
 			parent->of_node->full_name);
 		domain = -1;
 	}
+}
 
-	bus->domain_nr = domain;
+void pci_host_assign_domain_nr(struct pci_host_bridge *host)
+{
+	host->domain = pci_assign_domain_nr(host->dev.parent);
+}
+
+void pci_bus_assign_domain_nr(struct pci_bus *bus, struct device *parent)
+{
+	bus->domain_nr = pci_assign_domain_nr(parent);
 }
 #endif
 #endif
diff --git a/include/linux/pci.h b/include/linux/pci.h
index a11fb55..efd9917 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1327,11 +1327,15 @@ static inline int pci_domain_nr(struct pci_bus *bus)
 	return bus->domain_nr;
 }
 void pci_bus_assign_domain_nr(struct pci_bus *bus, struct device *parent);
+void pci_host_assign_domain_nr(struct pci_host_bridge *host);
 #else
 static inline void pci_bus_assign_domain_nr(struct pci_bus *bus,
 					struct device *parent)
 {
 }
+static inline void pci_host_assign_domain_nr(struct pci_host_bridge *host)
+{
+}
 #endif
 
 /* some architectures require additional setup to direct VGA traffic */
-- 
1.7.1

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