linux-kernel - [tip:irq/core] x86/PCI: Use for_pci_msi

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Date:	Wed, 22 Jul 2015 13:38:57 -0700
From:	tip-bot for Jiang Liu <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	marc.zyngier@....com, tglx@...utronix.de, konrad.wilk@...cle.com,
	wangyijing@...wei.com, bhelgaas@...gle.com,
	linux-kernel@...r.kernel.org, jiang.liu@...ux.intel.com,
	tony.luck@...el.com, bp@...en8.de, hpa@...or.com,
	stuart.yoder@...escale.com, grant.likely@...aro.org,
	mingo@...nel.org
Subject: [tip:irq/core] x86/PCI: Use for_pci_msi_entry()
  to access MSI device list

Commit-ID:  39118e31e1daae43048f5deaa3e0894d2732a7d6
Gitweb:     http://git.kernel.org/tip/39118e31e1daae43048f5deaa3e0894d2732a7d6
Author:     Jiang Liu <jiang.liu@...ux.intel.com>
AuthorDate: Thu, 9 Jul 2015 16:00:40 +0800
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Wed, 22 Jul 2015 18:37:43 +0200

x86/PCI: Use for_pci_msi_entry() to access MSI device list

Use accessor for_each_pci_msi_entry() to access MSI device list, so we
could easily move msi_list from struct pci_dev into struct device
later.

Signed-off-by: Jiang Liu <jiang.liu@...ux.intel.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Cc: Tony Luck <tony.luck@...el.com>
Cc: linux-arm-kernel@...ts.infradead.org
Cc: xen-devel@...ts.xenproject.org
Cc: Bjorn Helgaas <bhelgaas@...gle.com>
Cc: Grant Likely <grant.likely@...aro.org>
Cc: Marc Zyngier <marc.zyngier@....com>
Cc: Stuart Yoder <stuart.yoder@...escale.com>
Cc: Yijing Wang <wangyijing@...wei.com>
Cc: Borislav Petkov <bp@...en8.de>
Link: http://lkml.kernel.org/r/1436428847-8886-6-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 arch/x86/pci/xen.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c
index d22f4b5..ff31ab4 100644
--- a/arch/x86/pci/xen.c
+++ b/arch/x86/pci/xen.c
@@ -179,7 +179,7 @@ static int xen_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
 	if (ret)
 		goto error;
 	i = 0;
-	list_for_each_entry(msidesc, &dev->msi_list, list) {
+	for_each_pci_msi_entry(msidesc, dev) {
 		irq = xen_bind_pirq_msi_to_irq(dev, msidesc, v[i],
 					       (type == PCI_CAP_ID_MSI) ? nvec : 1,
 					       (type == PCI_CAP_ID_MSIX) ?
@@ -230,7 +230,7 @@ static int xen_hvm_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
 	if (type == PCI_CAP_ID_MSI && nvec > 1)
 		return 1;
 
-	list_for_each_entry(msidesc, &dev->msi_list, list) {
+	for_each_pci_msi_entry(msidesc, dev) {
 		__pci_read_msi_msg(msidesc, &msg);
 		pirq = MSI_ADDR_EXT_DEST_ID(msg.address_hi) |
 			((msg.address_lo >> MSI_ADDR_DEST_ID_SHIFT) & 0xff);
@@ -274,7 +274,7 @@ static int xen_initdom_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
 	int ret = 0;
 	struct msi_desc *msidesc;
 
-	list_for_each_entry(msidesc, &dev->msi_list, list) {
+	for_each_pci_msi_entry(msidesc, dev) {
 		struct physdev_map_pirq map_irq;
 		domid_t domid;
 
@@ -386,7 +386,7 @@ static void xen_teardown_msi_irqs(struct pci_dev *dev)
 {
 	struct msi_desc *msidesc;
 
-	msidesc = list_entry(dev->msi_list.next, struct msi_desc, list);
+	msidesc = first_pci_msi_entry(dev);
 	if (msidesc->msi_attrib.is_msix)
 		xen_pci_frontend_disable_msix(dev);
 	else
--
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