[-next 3/5] PCI/sysfs: Use pci_is_vga() helper

Sui Jingfeng
2023-08-30T19:14:40Z

From: Sui Jingfeng <suijingfeng@loongson.cn>

Instead of accessing the PCI_CLASS_DISPLAY_VGA and pdev->class directly.
The PCI_CLASS_NOT_DEFINED_VGA is defined to provide backward compatibility
for devices that were built before the class code field was defined. It
should be visiable via sysfs(boot_vga) as the normal VGA-compatible devices.

Cc: "Maciej W. Rozycki" <macro@orcam.me.uk>
Signed-off-by: Sui Jingfeng <suijingfeng@loongson.cn>
---
drivers/pci/pci-sysfs.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index d9eede2dbc0e..522708938563 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -1552,10 +1552,10 @@ static umode_t pci_dev_attrs_are_visible(struct kobject *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 (pci_is_vga(pdev))
+ return a->mode;

- return a->mode;
+ return 0;
}

static struct attribute *pci_dev_hp_attrs[] = {
--
2.34.1