| From | Jiaxun Yang <> | Subject | [PATCH v10 1/5] PCI: Don't disable decoding when mmio_always_on is set | Date | Thu, 14 May 2020 21:16:37 +0800 |
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Don't disable MEM/IO decoding when a device have both non_compliant_bars and mmio_always_on.
That would allow us quirk devices with junk in BARs but can't disable their decoding.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Acked-by: Bjorn Helgaas <helgaas@kernel.org> --- drivers/pci/probe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 77b8a145c39b..d9c2c3301a8a 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -1822,7 +1822,7 @@ int pci_setup_device(struct pci_dev *dev) /* Device class may be changed after fixup */ class = dev->class >> 8; - if (dev->non_compliant_bars) { + if (dev->non_compliant_bars && !dev->mmio_always_on) { pci_read_config_word(dev, PCI_COMMAND, &cmd); if (cmd & (PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) { pci_info(dev, "device has non-compliant BARs; disabling IO/MEM decoding\n"); -- 2.26.2
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