From 393c092a4d3ace7b8cef633ede2171104dd504d7 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Tue, 20 Oct 2015 17:33:45 +0200 Subject: [PATCH] iommu/amd: Remove find_last_devid_on_pci() The value read from the PCI header is not reliable, so remove this code. Signed-off-by: Joerg Roedel --- drivers/iommu/amd_iommu_init.c | 19 ------------------- 1 file changed, 19 deletions(-) diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c index 71734f7bc248..dd92a8d8f0ca 100644 --- a/drivers/iommu/amd_iommu_init.c +++ b/drivers/iommu/amd_iommu_init.c @@ -407,20 +407,6 @@ static inline int ivhd_entry_length(u8 *ivhd) return 0x04 << (*ivhd >> 6); } -/* - * This function reads the last device id the IOMMU has to handle from the PCI - * capability header for this IOMMU - */ -static int __init find_last_devid_on_pci(int bus, int dev, int fn, int cap_ptr) -{ - u32 cap; - - cap = read_pci_config(bus, dev, fn, cap_ptr+MMIO_RANGE_OFFSET); - update_last_devid(PCI_DEVID(MMIO_GET_BUS(cap), MMIO_GET_LD(cap))); - - return 0; -} - /* * After reading the highest device id from the IOMMU PCI capability header * this function looks if there is a higher device id defined in the ACPI table @@ -433,11 +419,6 @@ static int __init find_last_devid_from_ivhd(struct ivhd_header *h) p += sizeof(*h); end += h->length; - find_last_devid_on_pci(PCI_BUS_NUM(h->devid), - PCI_SLOT(h->devid), - PCI_FUNC(h->devid), - h->cap_ptr); - while (p < end) { dev = (struct ivhd_entry *)p; switch (dev->type) { -- 2.20.1