[PATCH v4 10/10] PCI: drop `pci_is_thunderbolt_attached`

[Mario Limonciello]

Currently `pci_is_thunderbolt_attached` is used to indicate a device
is connected externally.

As all drivers now look at the removable attribute, drop this function.

Signed-off-by: Mario Limonciello <mario.limonciello at amd.com>
---
 include/linux/pci.h | 22 ----------------------
 1 file changed, 22 deletions(-)

diff --git a/include/linux/pci.h b/include/linux/pci.h
index d9719eb14654..089e7e36a0d9 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -2434,28 +2434,6 @@ static inline bool pci_ari_enabled(struct pci_bus *bus)
 	return bus->self && bus->self->ari_enabled;
 }
 
-/**
- * pci_is_thunderbolt_attached - whether device is on a Thunderbolt daisy chain
- * @pdev: PCI device to check
- *
- * Walk upwards from @pdev and check for each encountered bridge if it's part
- * of a Thunderbolt controller.  Reaching the host bridge means @pdev is not
- * Thunderbolt-attached.  (But rather soldered to the mainboard usually.)
- */
-static inline bool pci_is_thunderbolt_attached(struct pci_dev *pdev)
-{
-	struct pci_dev *parent = pdev;
-
-	if (dev_is_removable(&pdev->dev))
-		return true;
-
-	while ((parent = pci_upstream_bridge(parent)))
-		if (dev_is_removable(&parent->dev))
-			return true;
-
-	return false;
-}
-
 #if defined(CONFIG_PCIEPORTBUS) || defined(CONFIG_EEH)
 void pci_uevent_ers(struct pci_dev *pdev, enum  pci_ers_result err_type);
 #endif
-- 
2.34.1