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PCI/sysfs: Enable 'boot_vga' attribute via pci_is_vga()

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Enable the 'boot_vga' sysfs attribute via pci_is_vga().

This exposes 'boot_vga' for old PCI_CLASS_NOT_DEFINED_VGA (0x0001) devices
as well as for the PCI_CLASS_DISPLAY_VGA (0x0300) devices where it was
previously exposed.

Link: https://lore.kernel.org/r/20230830111532.444535-4-sui.jingfeng@linux.dev
Signed-off-by: Sui Jingfeng <suijingfeng@loongson.cn>
[bhelgaas: commit log]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: "Maciej W. Rozycki" <macro@orcam.me.uk>
This commit is contained in:
Sui Jingfeng 2023-08-30 19:15:30 +08:00 committed by Bjorn Helgaas
parent 300bac9389
commit cdd3cecb52
1 changed files with 3 additions and 4 deletions
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7
drivers/pci/pci-sysfs.c
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@ -1551,11 +1551,10 @@ static umode_t pci_dev_attrs_are_visible(struct kobject *kobj,
struct device *dev = kobj_to_dev(kobj);
struct pci_dev *pdev = to_pci_dev(dev);
if (a == &dev_attr_boot_vga.attr)
if ((pdev->class >> 8) != PCI_CLASS_DISPLAY_VGA)
return 0;
if (a == &dev_attr_boot_vga.attr && pci_is_vga(pdev))
return a->mode;
return a->mode;
return 0;
}
static struct attribute *pci_dev_hp_attrs[] = {