From fccf202e01e0e5c9d5f1fdd00009614c04c82818 Mon Sep 17 00:00:00 2001 From: Breno Leitao Date: Fri, 12 Aug 2022 02:40:11 -0700 Subject: [PATCH] misc: bcm-vk: Specify the minimum number of IRQ vecs During bcm_vk_probe(), pci_alloc_irq_vectors() is called passing the number of IRQ vectors as 1, but, later, check how many IRQ vectors it got, and fails if it is smaller than VK_MSIX_IRQ_MIN_REQ. The most appropriated way to do it is setting the 'min_vecs' param as VK_MSIX_IRQ_MIN_REQ, instead of one. pci_alloc_irq_vectors() should know the requirements when called. The test was done by just loading this module on a machine with a Valkyrie offload engine hardware. Acked-by: Scott Branden Signed-off-by: Breno Leitao Link: https://lore.kernel.org/r/20220812094011.4064729-1-leitao@debian.org Signed-off-by: Greg Kroah-Hartman --- drivers/misc/bcm-vk/bcm_vk_dev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/misc/bcm-vk/bcm_vk_dev.c b/drivers/misc/bcm-vk/bcm_vk_dev.c index a16b99b..bedab17 100644 --- a/drivers/misc/bcm-vk/bcm_vk_dev.c +++ b/drivers/misc/bcm-vk/bcm_vk_dev.c @@ -1339,7 +1339,7 @@ static int bcm_vk_probe(struct pci_dev *pdev, const struct pci_device_id *ent) pci_set_drvdata(pdev, vk); irq = pci_alloc_irq_vectors(pdev, - 1, + VK_MSIX_IRQ_MIN_REQ, VK_MSIX_IRQ_MAX, PCI_IRQ_MSI | PCI_IRQ_MSIX); -- 2.7.4