From: Jon Derrick Date: Mon, 29 Aug 2016 17:19:01 +0000 (-0600) Subject: x86/PCI: VMD: Allocate IRQ lists with correct MSI-X count X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=c68db51589052ef9adee4dd699462681737849a2;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git x86/PCI: VMD: Allocate IRQ lists with correct MSI-X count To reduce the amount of memory required for IRQ lists, only allocate their space after calling pci_msix_enable_range() which may reduce the number of MSI-X vectors allocated. Signed-off-by: Jon Derrick Signed-off-by: Bjorn Helgaas Reviewed-by: Keith Busch --- diff --git a/arch/x86/pci/vmd.c b/arch/x86/pci/vmd.c index b814ca675131..7a8538da6289 100644 --- a/arch/x86/pci/vmd.c +++ b/arch/x86/pci/vmd.c @@ -671,11 +671,6 @@ static int vmd_probe(struct pci_dev *dev, const struct pci_device_id *id) if (vmd->msix_count < 0) return -ENODEV; - vmd->irqs = devm_kcalloc(&dev->dev, vmd->msix_count, sizeof(*vmd->irqs), - GFP_KERNEL); - if (!vmd->irqs) - return -ENOMEM; - vmd->msix_entries = devm_kcalloc(&dev->dev, vmd->msix_count, sizeof(*vmd->msix_entries), GFP_KERNEL); @@ -689,6 +684,11 @@ static int vmd_probe(struct pci_dev *dev, const struct pci_device_id *id) if (vmd->msix_count < 0) return vmd->msix_count; + vmd->irqs = devm_kcalloc(&dev->dev, vmd->msix_count, sizeof(*vmd->irqs), + GFP_KERNEL); + if (!vmd->irqs) + return -ENOMEM; + for (i = 0; i < vmd->msix_count; i++) { INIT_LIST_HEAD(&vmd->irqs[i].irq_list); vmd->irqs[i].vmd_vector = vmd->msix_entries[i].vector;