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Message-ID: <20081121183821.GB7810@yzhao12-linux.sh.intel.com>
Date:	Sat, 22 Nov 2008 02:38:21 +0800
From:	Yu Zhao <yu.zhao@...el.com>
To:	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>
Cc:	"achiang@...com" <achiang@...com>,
	"bjorn.helgaas@...com" <bjorn.helgaas@...com>,
	"grundler@...isc-linux.org" <grundler@...isc-linux.org>,
	"greg@...ah.com" <greg@...ah.com>, "mingo@...e.hu" <mingo@...e.hu>,
	"jbarnes@...tuousgeek.org" <jbarnes@...tuousgeek.org>,
	"matthew@....cx" <matthew@....cx>,
	"randy.dunlap@...cle.com" <randy.dunlap@...cle.com>,
	"rdreier@...co.com" <rdreier@...co.com>,
	"horms@...ge.net.au" <horms@...ge.net.au>,
	"yinghai@...nel.org" <yinghai@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"kvm@...r.kernel.org" <kvm@...r.kernel.org>,
	"virtualization@...ts.linux-foundation.org" 
	<virtualization@...ts.linux-foundation.org>
Subject: [PATCH 1/13 v7] PCI: enhance pci_ari_enabled()

Change parameter of pci_ari_enabled() from 'pci_dev' to 'pci_bus'.

ARI forwarding on the bridge mostly concerns the subordinate devices
rather than the bridge itself. So this change will make the function
easier to use.

Signed-off-by: Yu Zhao <yu.zhao@...el.com>

---
 drivers/pci/pci.h |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 9de87e9..1449884 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -162,13 +162,13 @@ struct pci_slot_attribute {
 extern void pci_enable_ari(struct pci_dev *dev);
 /**
  * pci_ari_enabled - query ARI forwarding status
- * @dev: the PCI device
+ * @bus: the PCI bus
  *
  * Returns 1 if ARI forwarding is enabled, or 0 if not enabled;
  */
-static inline int pci_ari_enabled(struct pci_dev *dev)
+static inline int pci_ari_enabled(struct pci_bus *bus)
 {
-	return dev->ari_enabled;
+	return bus->self && bus->self->ari_enabled;
 }
 
 #endif /* DRIVERS_PCI_H */
-- 
1.5.6.4

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