diff mbox series

[V3,02/35] x86/pci/XEN: Use PCI device property

Message ID 20211210221813.311410967@linutronix.de (mailing list archive)
State Handled Elsewhere
Headers show
Series genirq/msi, PCI/MSI: Spring cleaning - Part 2 | expand

Commit Message

Thomas Gleixner Dec. 10, 2021, 10:18 p.m. UTC 
From: Thomas Gleixner <tglx@linutronix.de>

instead of fiddling with MSI descriptors.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Juergen Gross <jgross@suse.com>
Cc: xen-devel@lists.xenproject.org
---
V3: Use pci_dev->msix_enabled.
---
 arch/x86/pci/xen.c |    9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

Comments

Jason Gunthorpe Dec. 13, 2021, 1:56 p.m. UTC | #1 
On Fri, Dec 10, 2021 at 11:18:46PM +0100, Thomas Gleixner wrote:
> From: Thomas Gleixner <tglx@linutronix.de>
> 
> instead of fiddling with MSI descriptors.
> 
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
> Cc: Juergen Gross <jgross@suse.com>
> Cc: xen-devel@lists.xenproject.org
> ---
> V3: Use pci_dev->msix_enabled.
> ---
>  arch/x86/pci/xen.c |    9 ++-------
>  1 file changed, 2 insertions(+), 7 deletions(-)

Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>

Jason
diff mbox series

Patch

--- a/arch/x86/pci/xen.c
+++ b/arch/x86/pci/xen.c
@@ -399,9 +399,7 @@  static void xen_teardown_msi_irqs(struct
 
 static void xen_pv_teardown_msi_irqs(struct pci_dev *dev)
 {
-	struct msi_desc *msidesc = first_pci_msi_entry(dev);
-
-	if (msidesc->pci.msi_attrib.is_msix)
+	if (dev->msix_enabled)
 		xen_pci_frontend_disable_msix(dev);
 	else
 		xen_pci_frontend_disable_msi(dev);
@@ -417,10 +415,7 @@  static int xen_msi_domain_alloc_irqs(str
 	if (WARN_ON_ONCE(!dev_is_pci(dev)))
 		return -EINVAL;
 
-	if (first_msi_entry(dev)->pci.msi_attrib.is_msix)
-		type = PCI_CAP_ID_MSIX;
-	else
-		type = PCI_CAP_ID_MSI;
+	type = to_pci_dev(dev)->msix_enabled ? PCI_CAP_ID_MSIX : PCI_CAP_ID_MSI;
 
 	return xen_msi_ops.setup_msi_irqs(to_pci_dev(dev), nvec, type);
 }