Commit cdd3cecb authored by Sui Jingfeng's avatar Sui Jingfeng Committed by Bjorn Helgaas
Browse files

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

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: default avatarSui Jingfeng <suijingfeng@loongson.cn>
[bhelgaas: commit log]
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Cc: "Maciej W. Rozycki" <macro@orcam.me.uk>
parent 300bac93

drivers/pci/pci-sysfs.c

+3 −4
Original line number Diff line number Diff line
@@ -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 0;

}



static struct attribute *pci_dev_hp_attrs[] = {