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    Subject[tip: irq/msi] x86/apic/msi: Use PCI device MSI property
    The following commit has been merged into the irq/msi branch of tip:

    Commit-ID: b3f82364117a0b7f666ce023195b636c4803c46c
    Gitweb: https://git.kernel.org/tip/b3f82364117a0b7f666ce023195b636c4803c46c
    Author: Thomas Gleixner <tglx@linutronix.de>
    AuthorDate: Fri, 10 Dec 2021 23:18:47 +01:00
    Committer: Thomas Gleixner <tglx@linutronix.de>
    CommitterDate: Thu, 16 Dec 2021 22:16:37 +01:00

    x86/apic/msi: Use PCI device MSI property

    instead of fiddling with MSI descriptors.

    Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
    Tested-by: Michael Kelley <mikelley@microsoft.com>
    Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
    Link: https://lore.kernel.org/r/20211210221813.372357371@linutronix.de

    ---
    arch/x86/kernel/apic/msi.c | 5 +----
    1 file changed, 1 insertion(+), 4 deletions(-)

    diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c
    index b270b70..7517eb0 100644
    --- a/arch/x86/kernel/apic/msi.c
    +++ b/arch/x86/kernel/apic/msi.c
    @@ -160,11 +160,8 @@ static struct irq_chip pci_msi_controller = {
    int pci_msi_prepare(struct irq_domain *domain, struct device *dev, int nvec,
    msi_alloc_info_t *arg)
    {
    - struct pci_dev *pdev = to_pci_dev(dev);
    - struct msi_desc *desc = first_pci_msi_entry(pdev);
    -
    init_irq_alloc_info(arg, NULL);
    - if (desc->pci.msi_attrib.is_msix) {
    + if (to_pci_dev(dev)->msix_enabled) {
    arg->type = X86_IRQ_ALLOC_TYPE_PCI_MSIX;
    } else {
    arg->type = X86_IRQ_ALLOC_TYPE_PCI_MSI;
    \
     
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