PCI: Add informational printk for invalid BARs
As a consequence of restoring the detection of invalid BARs, add a new informational printk like the following when such occurrences are encountered. pci ssss:bb:dd.f: [Firmware Bug]: reg 0xXX: invalid BAR (can't size) Reported-by: William Unruh <unruh@physics.ubc.ca> Reported-by: Martin Lucina <martin@lucina.net> Signed-off-by: Myron Stowe <myron.stowe@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Matthew Wilcox <willy@linux.intel.com>
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@ -247,8 +247,11 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
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goto fail;
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sz64 = pci_size(l64, sz64, mask64);
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if (!sz64)
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if (!sz64) {
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dev_info(&dev->dev, FW_BUG "reg 0x%x: invalid BAR (can't size)\n",
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pos);
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goto fail;
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}
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if (res->flags & IORESOURCE_MEM_64) {
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if ((sizeof(dma_addr_t) < 8 || sizeof(resource_size_t) < 8) &&
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