diff mbox series

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

Message ID 20230830111532.444535-4-sui.jingfeng@linux.dev (mailing list archive)
State New, archived
Headers show
Series Add the pci_is_vga() helper and use it | expand

Commit Message

Sui Jingfeng Aug. 30, 2023, 11:15 a.m. UTC 
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 mbox series

Patch

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[] = {