PCI: Use pci_physfn() rather than looking up physfn by hand (c39127db) · Commits · 戴 / test

drivers/pci/ats.c

+4 −4

Original line number	Diff line number	Diff line
		@@ -42,6 +42,7 @@ void pci_ats_init(struct pci_dev *dev)
		int pci_enable_ats(struct pci_dev *dev, int ps)
		{
		u16 ctrl;
		struct pci_dev *pdev;

		BUG_ON(dev->ats_cap && dev->ats_enabled);

		@@ -57,8 +58,7 @@ int pci_enable_ats(struct pci_dev *dev, int ps)
		*/
		ctrl = PCI_ATS_CTRL_ENABLE;
		if (dev->is_virtfn) {
		struct pci_dev *pdev = dev->physfn;

		pdev = pci_physfn(dev);
		if (pdev->ats_stu != ps)
		return -EINVAL;

		@@ -80,6 +80,7 @@ EXPORT_SYMBOL_GPL(pci_enable_ats);
		*/
		void pci_disable_ats(struct pci_dev *dev)
		{
		struct pci_dev *pdev;
		u16 ctrl;

		BUG_ON(!dev->ats_cap \|\| !dev->ats_enabled);
		@@ -88,8 +89,7 @@ void pci_disable_ats(struct pci_dev *dev)
		return; /* VFs still enabled */

		if (dev->is_virtfn) {
		struct pci_dev *pdev = dev->physfn;

		pdev = pci_physfn(dev);
		atomic_dec(&pdev->ats_ref_cnt);
		}