linux-kernel - [patch V2 24/36] powerpc/pseries/msi: Use MSI device properties

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Message-ID: <20211206210438.967630948@linutronix.de>
Date:   Mon,  6 Dec 2021 23:39:34 +0100 (CET)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     Bjorn Helgaas <helgaas@...nel.org>, Marc Zygnier <maz@...nel.org>,
        Alex Williamson <alex.williamson@...hat.com>,
        Kevin Tian <kevin.tian@...el.com>,
        Jason Gunthorpe <jgg@...dia.com>,
        Megha Dey <megha.dey@...el.com>,
        Ashok Raj <ashok.raj@...el.com>, linux-pci@...r.kernel.org,
        Cedric Le Goater <clg@...d.org>,
        xen-devel@...ts.xenproject.org, Juergen Gross <jgross@...e.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Will Deacon <will@...nel.org>,
        Santosh Shilimkar <ssantosh@...nel.org>,
        iommu@...ts.linux-foundation.org, dmaengine@...r.kernel.org,
        Stuart Yoder <stuyoder@...il.com>,
        Laurentiu Tudor <laurentiu.tudor@....com>,
        Nishanth Menon <nm@...com>, Tero Kristo <kristo@...nel.org>,
        linux-arm-kernel@...ts.infradead.org,
        Vinod Koul <vkoul@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Robin Murphy <robin.murphy@....com>,
        Sinan Kaya <okaya@...nel.org>
Subject: [patch V2 24/36] powerpc/pseries/msi: Use MSI device properties

instead of fiddling with MSI descriptors.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Reviewed-by: Jason Gunthorpe <jgg@...dia.com>
---
 arch/powerpc/platforms/pseries/msi.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/arch/powerpc/platforms/pseries/msi.c
+++ b/arch/powerpc/platforms/pseries/msi.c
@@ -447,9 +447,9 @@ static int rtas_prepare_msi_irqs(struct
 static int pseries_msi_ops_prepare(struct irq_domain *domain, struct device *dev,
 				   int nvec, msi_alloc_info_t *arg)
 {
+	bool is_msix = msi_device_has_property(dev, MSI_PROP_PCI_MSIX);
+	int type = is_msix ? PCI_CAP_ID_MSIX : PCI_CAP_ID_MSI;
 	struct pci_dev *pdev = to_pci_dev(dev);
-	struct msi_desc *desc = first_pci_msi_entry(pdev);
-	int type = desc->pci.msi_attrib.is_msix ? PCI_CAP_ID_MSIX : PCI_CAP_ID_MSI;
 
 	return rtas_prepare_msi_irqs(pdev, nvec, type, arg);
 }