Re: [PATCH v2 3/9] PCI: Drop pci_is_thunderbolt_attached()

From: Mario Limonciello
Date: Mon Nov 06 2023 - 11:46:23 EST


On 11/6/2023 06:33, Ilpo Järvinen wrote:
On Fri, 3 Nov 2023, Mario Limonciello wrote:

All callers have switched to dev_is_removable() for detecting
hotpluggable PCIe devices.

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

diff --git a/include/linux/pci.h b/include/linux/pci.h
index b56417276042..530b0a360514 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -2616,28 +2616,6 @@ 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 (pdev->is_thunderbolt)
- return true;
-
- while ((parent = pci_upstream_bridge(parent)))
- if (parent->is_thunderbolt)
- 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


I don't think all callers have been removed. Ah, lkp has caught the same
problem.


As I mentioned in the cover letter this series is done on 6.6 + a patch going into 6.7-rc1. The LKP report will drop off when I rebase the series on 6.7-rc1.

As it's not yet in Linus' tree here is that patch so you can see it:

https://gitlab.freedesktop.org/agd5f/linux/-/commit/7b1c6263eaf4fd64ffe1cafdc504a42ee4bfbb33